Allen-Bradley 1606-XLB120E Owners Manual

Reference Manual

Original Instructions

Basic Power Supply 5 A

Catalog Number 1606-XLB120E

Important User Information

Read this document and the documents listed in the additional resources section about installation, configuration, and
operation of this equipment before you install, configure, operate, or maintain this product. Users are required to
familiarize themselves with installation and wiring instructions in addition to requirements of all applicable codes, laws,
and standards.

Activities including installation, adjustments, putting into service, use, assembly, disassembly, and maintenance are
required to be carried out by suitably trained personnel in accordance with applicable code of practice.

If this equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may
be impaired.

In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from
the use or application of this equipment.

The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and
requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or
liability for actual use based on the examples and diagrams.

No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or
software described in this manual.

Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation,
Inc., is prohibited

Throughout this manual, when necessary, we use notes to make you aware of safety considerations.

WARNING: Identifies information about practices or circu mstances that can cause an explosion in a hazardous
environment, which may lead to personal injury or death, property damage, or economic loss.

ATTENTION: Identifies information about practices or circu mstances that can lead to personal injury or death, property
damage, or economic loss. Attentions help you identify a hazard, avoid a hazard, and recognize the consequence.

IMPORTANT Identifies information that is critical for successful application and understanding of the product.

Labels may also be on or inside the equipment to provide specific precautions.

SHOCK HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that dangerous
voltage may be present.

BURN HAZARD: Labels may be on or inside the equipment, for example, a drive or motor, to alert people that surfaces may
reach dangerous temperatures.

ARC FLASH HAZARD: Labels may be on or inside the equipment, for example, a motor control center, to alert people to
potential Arc Flash. Arc Flash will cause severe injury or death. Wear proper Personal Protective Equipment (PPE). Follow ALL
Regulatory requirements for safe work practices and for Personal Protective Equipment (PPE).

Table of Contents

Basic Power Supply 5 A

Topic Page Topic Page

Additional Resources 3 Hold-up Time 11

Terminology and Abbreviations 4 DC OK Relay Contact 11

Product Overview 5 Efficiency and Power Loss 12

Front Side and User Elements 6 Lifetime Expectancy and Mean Time between

Failur e (MTB F)

Protection Features 6 Functional Diagram 13

Safety Features 7 EMC 14

Installation Notes 7 Application Notes 15

Terminals and Wiring 7 Specifications 19

Installation Notes 7 Environment 20

Input 8 Dielectric Strength 21

DC-Input 9 Standards Compliance and Certifications 22

Input Inrush Current 9 Approximate Dimensions and Weight 23

Output 10

13

Summary of Changes

Additional Resources

This manual contains new and updated information as indicated in the
following table.

Top ic Pag e

Corrected dimension information 23

These documents contain additional information concerning related products
from Rockwell Automation.

Resource Description

Switched Mode Power Supply Technical Data, publication

1606-TD002

Industrial Automation Wiring and Grounding Guidelines,
publication 1770-4.1

Product Certifications website, http://

www.rockwellautomation.com/global/certification/
overview.page

Provides specifications and approximate dimensions
for full line of switched mode power supplies.

Provides general guidelines for installing a Rockwell
Automation® industrial system.

Provides declarations of conformity, certificates, and
other certification details.

You can view or download publications at

http://www.rockwellautomation.com/global/literature-library/overview.page

To order paper copies of technical documentation, contact your local
Allen-Bradley distributor or Rockwell Automation sales representative.

.

Rockwell Automation Publication 1606-RM055B-EN-P - February 2017 3

Basic Power Supply 5 A

Terminology and Abbreviations

Term Definition

230V AC A figure with the unit (V AC) at the end is a momentary figure without any additional

tolerances included.

50 Hz vs. 60 Hz As long as not otherwise stated, AC 100V and AC 230V parameters are valid at 50 Hz

mains frequency. AC 120V parameters are valid for 60 Hz mains frequency.

AC 230V A figure that is displayed with the AC or DC before the value represents a nominal

voltage with standard tolerances included. For example: DC 12V describes a 12V battery,
whether it is full (13.7V) or flat (10V)

Earth, Ground This document uses the term “earth” which is the same as the U.S. term “ground”.

PE and symbol PE is the abbreviation for Protective Earth and has the same meaning as the symbol.

PELV Protection by extra-low voltage

SELV Safety by extra-low voltage

4 Rockwell Automation Publication 1606-RM055B-EN-P - February 2017

Basic Power Supply 5 A

Product Overview

1606-XLB Basic Power Supplies are
compact, industrial grade power supplies that
focus on the essential features needed in
industrial applications.

The housing is made of a high-grade,
reinforced molded material, which permits
the units to be used in ambient temperatures
up to 70 °C (158 °F).

This power supply features a wide input
voltage range, which makes it suitable for
global use.

The addition of a DC-OK signal makes the
power supply ideal for many industry
applications such as: process, automation,
and many other critical applications where
preventive function monitoring can help to
avoid long downtimes.

The 1606-XLB120E power supply offers these features:

• 100…120V/200…240V AC auto-select input

• Cost that is optimized without compromising the quality or reliability

• Small width of 39 mm (1.54 in.) takes up less space on the DIN rail

• Efficiency up to 92.3%

• Full power between -10…+55 °C (14…131 °F)

• DC-OK relay contact included

•1-year warranty

Rockwell Automation Publication 1606-RM055B-EN-P - February 2017 5

Basic Power Supply 5 A

Front Side and User Elements

Figure 1 - Front Side of DC-UPS

Letter Description

A Input terminals - (screw terminals)

N, L - Line input
PE - Protective earth input

B Output terminals - (screw terminals, two pins per pole)

+ Positive output
– Negative (return) output

C Output voltage potentiometer -

Guaranteed adjustment range: 24…28V
Fac tory set: 24 .1V

D DC-OK status indicator- (green) On, when the output voltage is >18V

E DC-OK Relay Contact (push-in terminals)

Protection Features

Attribute 1606-XLB120E

Output protection Electronically protected against overload, no-load, and short circuits

Output overvoltage protection typ 31V DC

max 34V DC

Degree of protection IP 20 EN/IEC 60529 Caution: For use in a controlled

Over-temperature protection

Input transient protection MOV (Metal Oxide Varistor)

Internal input fuse Included Not user replaceable

no

In case of an internal power supply anomal y, a redundant
circuit limits the maximum output voltage. In such a

case, the output shuts down and stays down until the
input voltage is turned off and on again for at least 1
minute or until the green status indicator went off.

environment according to CSA 22.2 No 107.1-01.

6 Rockwell Automation Publication 1606-RM055B-EN-P - February 2017

Safety Features

Basic Power Supply 5 A

Attribute 1606-XLB120E

Input/output separation
double or reinforced insulation

Class of protection I PE (Protective Earth) connection required

Isolation resistance > 100 MOhm Input to output, 500V DC

Tou ch cur ren t
(leakage current)

SELV IEC/EN 60950-1

PELV IEC/EN 60204-1, EN 50178, IEC 62103, IEC 60364-4-41

typ 0.21 mA/0.46 mA 100V AC, 50 Hz, TN-,TT-mains/IT-mains

typ 0.30 mA/0.65 mA 120V AC, 60 Hz, TN-,TT-mains/IT-mains

typ 0.33 mA/0.72 mA 230V AC, 50 Hz, TN-,TT-mains/IT-mains

< 0.27 mA/0.56 mA 110V AC, 50 Hz, TN-,TT-mains/IT-mains

< 0.38 mA/0.78 mA 132V AC, 60 Hz, TN-,TT-mains/IT-mains

< 0.43 mA/0.90 mA 264V AC, 50 Hz, TN-,TT-mains/IT-mains

Installation Notes

Terminals and Wiring

• Use appropriate copper cables that are designed for minimum operating
temperatures of:

– 75 °C (167 °F) for ambient up to 55 °C (131 °F) minimum.
– 90 °C (194 °F) for ambient up to 70 °C (158 °F) minimum.

• Follow national installation codes and installation regulations

• Verify that all strands of a stranded wire enter the terminal connection.

• Do not use the power supply without a PE connection.

• Secure unused terminal compartments tightly.

• Ferrules are allowed.

The terminals are IP20 Fingersafe constructed and suitable for field- and
factory wiring.

Attribute Input and Output Terminals DC-OK Signal Terminal

Terminal type Screw terminals Push-in terminals

Solid wire, max 6 mm

Stranded wire, max 4 mm

American Wire Gauge AWG 20-10 AWG 28-16

Wire diameter, max including ferrules) 2.8 mm (0.11 in.) 1.6 mm (0.06 in.)

Wire stripping length 7 mm (0.28 in.) 7 mm (0.28 in.)

Screwdriver 3.5 mm (0.14 in.)

Recommended tightening torque 1 N•m (9 lb•in) Not applicable

2

2

slotted or cross-head No 2

2

1.5 mm

2

1.5 mm

Not required

Rockwell Automation Publication 1606-RM055B-EN-P - February 2017 7

Basic Power Supply 5 A

Turn-on

90

Rated input ranges

V

IN

P

OUT

264180

Shut-down

132

Upper
range

Lower
range

300Vac

max.

500ms

Start-up

delay

Rise

Time

Overshoot

- 5%

Output
Voltage

Input
Voltage

5A

0.5 1 1.5 2 2.5 3 3.5 4 4.5

0

0.3

0.6

0.9

1.2

1.5

1.8

2.2A

Input Current, typ.

b

c

a

Output Current

a) 100Vac
b) 120Vac
c) 230Vac

Power Factor, typ.

0.5 1 1.5 2 2.5 3 3.5 4 4.5 5A

0.45

0.50

0.55

0.60

0.65

0.70

Output Current

a) 100Vac
b) 120Vac
c) 230Vac

b

c

a

Input

Attribute 1606-XLB120E

AC input nom 100…120V/200…240V AC Auto-select, suitable for TN-, TT- and IT mains networks

AC input range min 90…132V AC/180…264V AC continuous operation

Allowed voltage L or N to earth max 300V AC continuous, IEC 62103

Input frequency nom 50…60 Hz ±6%

External input protection See recommendations in External Input Protection

Attribute AC 100V AC 120V AC 230V

Input current typ 2.0 A 1.72 A 1.05 A at 24V, 5 A, see Figure 3

Power factor

Crest factor

Turn-on voltage typ 78V AC 78V AC 157V AC at 24V 0 A, steady-state value, see Figure 2

Shut-down voltage typ 68V AC 68V AC 68V AC at 24V 5 A, steady-state value, see Figure 2

Start-up delay typ 400 ms 400 ms 100 ms see Figure 4

Rise time typ 30 ms 30 ms 30 ms at 24V, 5 A const. current load, 0mF load capacitance, see Figure 4

Turn-on overshoot max 200 mV 200 mV 200 mV see Figure 4

(1) The power factor is the ratio of the true (or real) power to the apparent power in an AC circuit.

(2) The crest factor is the mathematical ratio of the peak value to the T ms value of the input current waveform.

min 264…300V AC < 500 ms

on page 16

(1)

(2)

typ 0.66 0.64 0.54 at 24V, 5 A, see Figure 5

typ 2.7 2.8 3.4 at 24V, 5 A

typ 90 ms 90 ms 90 ms at 24V, 5 A const. current load, 5mF load capacitance, see Figure 4

Figure 2 - Input Voltage Range, typ Figure 4 - Turn-on Behavior, Definitions

Figure 3 - Input Current vs. Output Load at 24V Figure 5 - Power Factor vs. Output Load

8 Rockwell Automation Publication 1606-RM055B-EN-P - February 2017

Basic Power Supply 5 A

20ms/DIV

Input current 20A/DIV

Input voltage 500V/DIV

Output voltage 20V/DIV

1ms/DIV

Ipeak = 33A

Input current 10A/DIV

DC-Input

Input Inrush Current

Figure 6 - Input Inrush Current, Typical Behavior,
230V AC Input, 24V 5 A Output, 40 °C (104 °F) Ambient

Do not operate the power supply with DC-input voltage.

A NTC inrush limiter limits the input inrush current after turn-on of the
input voltage.

Attribute AC 100V AC 120V AC 230V Notes

Inrush
current

Inrush
energy

max 23 A peak 27 A peak 40 A peak 40 °C (104 °F) ambient, cold start

typ 18 A peak 22 A peak 33 A peak

typ 13 A peak 16 A peak 30 A peak 25 °C (77 °F) ambient, cold start

max 0.4 A

2

s0.5 A

2

s1.5 A

2

s 40 °C (104 °F) ambient, cold start

Figure 7 - Input Inrush Current, Zoom Into First Peak
230V AC Input, 24V 5 A Output, 40 °C (104 °F) Ambient

Rockwell Automation Publication 1606-RM055B-EN-P - February 2017 9

Basic Power Supply 5 A

Output Voltage

0

024

4

8

12

28V

16

20

24

10A53167

intermittent

operation

8 9

continuous

current

Adjustment

Range

Output Current

A

.

.

.

1

3

2

/

2

6

4

V

a

c

B

.

.

.

8

5

/

1

8

7

V

a

c

A

B

Output

Attribute 1606-XLB120E Notes

Output voltage nom DC 24V

Adjustment range min 24…28V guaranteed

max 30V

(1)

at clockwise end position of potentiometer

Factory settings typ 24.1V ±0.2 %, at full load, cold unit

Line regulation max 10 mV 90…132/180…264V AC

Load regulation max 150 mV static value, 0 A .. 5 A .. 0 A

Ripple and noise

max 100 mVpp 20 Hz to 20 MHz, 50 Ohms

voltage

Output current for AC 110…120/220…240V mains voltages (includes AC 208V mains):

nom 5 A at 24V, below 55 °C (122 °F) ambient temperature

4.3 A at 28V, below 55 °C (122 °F) ambient temperature

3.1 A at 24V, at 70 °C (158 °F) ambient temperature

2.7 A at 28V, at 70 °C (158 °F) ambient temperature

Derate linearly between +55 °C (122 °F) and +70 °C (158 °F)

for AC 100/200V mains voltages:

nom 5 A at 24V, below 55 °C (122 °F) ambient temperature

4.3 A at 28V, below 55 °C (122 °F) ambient temperature

2.5 A at 24V, at 70 °C (158 °F) ambient temperature

2.1 A at 28V, at 70 °C (158 °F) ambient temperature

Derate linearly 50 …70 °C (122…158 °F)

Overload behavior continuous current output voltage > 10V DC, see Figure 8

Intermittent output voltage < 10V DC, see Figu re 8

Short Circuit current typ 3.5 A

(2)

average (R.M.S.) current, load impedance 50mOhm

Output capacitance typ 2 050 μF included inside the power supply

(1) This is the maximum output voltage that can occur at the clockwise end position o f the potentiometer due to tolerances. It is not

guaranteed value that can be achieved. The typical value is about 28.5V.

(2) Discharge current of output capacitors is not included.

Figure 8 - Output Voltage vs. Output Current, R ms current, typ Figure 9 - Intermittent Operation at Shorted Output, typ

10 Rockwell Automation Publication 1606-RM055B-EN-P - February 2017

60ms

360ms

9.2A

Hold-up Time

0

25

50

125ms

85 120 155 190 230Vac

Input Voltage

Hold-up Time

75

100

a) 24V 2.5A typ.
b) 24V 2.5A min.
c) 24V 5A typ.
d) 24V 5A min.

a b c d a

b

c
d

Type AC 100V AC 120V AC 230V

24V, 2.5 A typ 64 ms 108 ms 105 ms

min 54 ms 91 ms 88 ms

24V, 5 A typ 26 ms 51 ms 50 ms

min 22 ms 43 ms 42 ms

Figure 10 - Hold-up Time vs. Input Voltage Figure 11 - Shut-down behavior, definitions

Zero Transition

Input
Voltage

Basic Power Supply 5 A

DC OK Relay Contact

Output
Voltage

Hold-up Time

- 5%

This feature monitors the output voltage that is produced by the power supply
itself. It is independent of a back-fed voltage from a unit that is connected in
parallel to the power supply output (for example, redundant application).

Attribute 1606-XLB120E

Contact closes As soon as the output voltage reaches 21.4V

Contact opens As soon as the output voltage dips below 21.4V

Contact ratings max 60V DC 0.3 A, 30V DC 1 A, 30V AC 0.5 A resistive load

min 1 mA at 5V DC minimum required load

Isolation voltage See Dielectric Strength

Figure 12 - DC-OK Relay Contact Behavior

on page 21

Output Voltage

21.4V

open

closed

Rockwell Automation Publication 1606-RM055B-EN-P - February 2017 11

Basic Power Supply 5 A

Efciency

0.5

86

87

88

89

90

91

92

85

93%

5A2 2.5 413

a

c

b

Output Current

1.5 3.5 4.5

a) 100Vac
b) 120Vac
c) 230Vac

Power Losses

0

51A

0

2

6

8

10

12W

4

234

Output Current

a) 100Vac
b) 120Vac
c) 230Vac

c

b

a

Efciency

90 120

155

180 230 260Vac

87

88

89

90

Input Voltage

91

92

93%

Efficiency and Power Loss

Attribute AC 100V AC 120V AC 230V Notes

Efficiency typ 90.7% 91.2% 92.3% at 24V, 5 A

Average

(1)

efficiency

Power losses typ 1.4 W 1.5 W 0.7 W at 24V, 0 A

(1) The average efficiency is an assumption for a typical application where the power supply is loaded with 25% of the nominal load

for 25% of the time, 50% of the nominal load for another 25% of the time, 75% of the nominal load for another 25% of the time
and with 100% of the nominal load for the rest of the time.

Figure 13 - Efficiency vs. Output Current, typ Figure 15 - Power Losses vs. Output Current at 24V, typ

typ 89.2% 89.4% 90.6% 25% at 1.25 A, 25% at 2.5 A,

25% at 3.75 A. 25% at 5 A

typ 7.0 W 7.4 W 6.0 W at 24V, 2.5 A

typ 12.3 W 11.6 W 10.0 W at 24V, 5 A

Figure 14 - Efficiency vs. Input Voltage at 24V, 5 A, typ Figure 16 - Power Losses vs. Input Voltage at 24V, 5 A

Power Losses

14W

12

10

8

6

90 120

12 Rockwell Automation Publication 1606-RM055B-EN-P - February 2017

155

Input Voltage

180 230 260Vac

Lifetime Expectancy and

+

+

-

-

V

OUT

Input Fuse
&
Input Filter

Output

Voltage

Regulator

Power

Converter

Output

Filter

DC
ok

L

N

Output

Over-

Voltage

Protection

Input
Rectier
&
Inrush
Limiter

(NTC)

DC-ok
Relay

DC-ok
Contact

115/230V

Auto

Select

Mean Time between Failure
(MTBF)

Basic Power Supply 5 A

Attribute AC 100V AC 120V AC 230V Notes

Lifetime
expectancy

(1)

181 000 h 194 000 h 219 000 h at 24V, 2.5 A and 40 °C (104 °F)

511 000 h 548 000 h 621 000 h at 24V, 2.5 A and 25 °C (77 °F)

66 000 h 68 000 h 83 000 h at 24V, 5 A and 40 °C (104 °F)

188 000 h 193 000 h 234 000 h at 24V, 5 A and 25 °C (77 °F)

MTBF

SN 29500,

(2)

IEC 61709

MIL HDBK
217 F

1 065 000 h 1 147 000 h 1 379 000 h at 24V, 5 A and 40 °C (104 °F)

2 038 000 h 2 166 000 h 2 519 000 h at 24V, 5 A and 25 °C (77 °F)

681 000 h 651 000 h 645 000 h at 24V, 5 A and 40 °C (104 °F); Ground Benign GB40

872 000 h 842 000 h 839 000 h at 24V, 5 A and 25 °C (77 °F); Ground Benign GB25

165 000 h 164 000 h 168 000 h at 24V, 5 A and 40 °C(104 °F); Ground Fixed GF40

206 000 h 205 000 h 211 000 h at 24V, 5 A and 25 °C (77 °F); Ground Fixed GF25

(1) The Lifetime expectancy that is shown in the table indicates the minimum operating hours (service life) and is determined by the

lifetime expectancy of the built-in electrolytic capacitors. Lifetime expectancy is specified in operational hours and is calculated
according to the capacitor’s manufacturer specification. The manufacturer of the electrolytic capacitors only guarantees a maxi mum
life of up to 15 years (131 400 h). Any number exceeding this value is a calculated theoretical lifetime w hich can be used to compare
devices.

(2) MTBF stands for Mean Time Between Failure, which is calculated according to statistical device failures, and indicates reliability of a

device. It is the statistical representation of the likelihood of a unit to fail and does not necessarily represent the life of a product.

The MTBF figure is a statistical representation of the likelihood of a device to fail. A MTBF figure of for example, 1 000 000 h means
that statistically one unit fails every 100 hours if 10 000 units are installed in the field. However, it cannot be determined if the failed
unit has been running for 50 000 h or only for 100 h.

Functional Diagram

Figure 17 - Functional Diagram

Rockwell Automation Publication 1606-RM055B-EN-P - February 2017 13

Basic Power Supply 5 A

EMC

EMC Immunity According to Generic Standards EN 61000-6-1 and EN 61000-6-2 Criterion

Electrostatic discharge EN 61000-4-2 contact discharge

air discharge

8 kV
8 kV

Criterion A
Criterion A

Electromagnetic RF field EN 61000-4-3 80 MHz-2.7 GHz 20V/m Criterion A

Fast transients (Burst) EN 61000-4-4 input lines

output lines
DC-OK signal

4 kV
2 kV
2 kV

Criterion A
Criterion A
Criterion A

(coupling clamp)

Surge voltage on input EN 61000-4-5 L ->N

L ->PE, N ->PE

Surge voltage on output EN 61000-4-5 + ->-

+/- ->PE

2 kV
4 kV

500V
1 kV

Criterion A
Criterion A

Criterion A
Criterion A

Surge voltage on DC-OK EN 61000-4-5 DC-OK signal… PE 1 kV Criterion A

Conducted disturbance EN 61000-4-6 0.15…80 M Hz 20V Criterion A

Mains voltage dips EN 61000-4-11 0% of 100V AC

40% of 100V AC
70% of 100V AC
0% of 200V AC
40% of 200V AC
70% of 200V AC

0V AC, 20 ms
40V AC, 200 ms
70V AC, 500 ms
0V AC, 20 ms
80V AC, 200 ms
140V AC, 500 ms

Criterion A
Criterion C
Criterion A
Criterion A
Criterion C
Criterion A

Voltage interruptions EN 61000-4-11 0% of 220V AC (=0V) 5000 ms Criterion C

Voltage sags SEMI F47 0706 dips on the input voltage according to SEMI F47 standard

80% of 208V AC (166V AC)
70% of 208V AC (146V AC)
50% of 208V AC (104V AC)
80% of 120V AC (96V AC)
70% of 120V AC (84V AC)
50% of 120V AC (60V AC)

1000 ms
500 ms
200 ms
1000 ms
500 ms
200 ms

Criterion A
Criterion A
Criterion C
Criterion A
Criterion A
Criterion C

Powerful transients VDE 0160 over entire load range 750V, 1.3 ms Criterion A

(1) Criterion A: Power supply shows normal operation behavior withing the defined limits.

Criterion C: Temporary loss of function is possible. Power supply can shut down and restart by itself. No damage or hazard for the
power supply occurs.

(2) Below 4.5 A, Criterion C for currents above 5 A.

(1)

(2)

EMC Emission According to Generic Standards: EN 61000-6-3, EN 610000-6-4

Conducted emission input lines EN 55011, EN 55022

FCC Part 15
CISPR 11, CISPR 22

Conducted emission output

(1)

lines

IEC/CISPR 16-1-2, IEC/CISPR 16-2-1 limits for DC power port according to EN

Radiated emission EN 55011, EN 55022 Class B

Harmonic input current EN 61000-3-2 Fulfilled for class A equipment

Voltage fluctuations, flicker EN 61000-3-3 Fulfilled

This device complies with FCC Part 15 rules. Operation is subjected to following two conditions: (1) this device cannot
cause harmful interference, and (2) this device must accept any interference received, including interference that can
cause undesired operation.

(1) For information only, not mandatory for EN 61000-6-3.

(2) Tested with constant current loads, non-pulsing.

14 Rockwell Automation Publication 1606-RM055B-EN-P - February 2017

Class B

61000-6-3 not fulfilled

(2)

Basic Power Supply 5 A

Application Notes

Peak Current Capability

The unit can deliver peak currents (up to several milliseconds) which are
higher than the specified short-term currents.

This helps to start current demanding loads. Solenoids, contactors, and
pneumatic modules often have a steady state coil and a pick-up coil. The inrush
current demand of the pick-up coil is several times higher than the steady-state
current and usually exceeds the nominal output current. The same situation
applies when starting a capacitive load.

The peak current capability also verifies the safe operation of subsequent
circuit breakers of load circuits. The load branches are often individually
protected with circuit breakers or fuses. If there is a short or an overload in one
branch circuit, the fuse or circuit breaker need a certain amount of overcurrent
to open in a timely manner. This avoids voltage loss in adjacent circuits.

The extra current (peak current) is supplied by the power converter and the
built-in large sized output capacitors of the power supply. The capacitors get
discharged during such an event, which causes a voltage dip on the output. The
following two examples show typical voltage dips:

Figure 18 - Peak Load with 2x the Nominal Current for 50 ms, typ Figure 19 - Peak Load with 5x the Nominal Current for 5 ms, typ

24V

10A

0A

10ms/DIV

10 A Peak load (resistive) for 50 ms
Output voltage dips from 24V to 17V.

Output
Voltage

17V

Output
Current

Peak Current Capability Voltage Dip Peak Load

Peak current voltage dips typ 24…17V at 10 A for 50 ms, resistive load

Back Feeding Loads

24V

25A

0A

typ 24…13V at 25 A for 2 ms, resistive load

typ 24…9V at 25 A for 5 ms, resistive load

25 A Peak load (resistive) for 5 ms
Output voltage dips from 24V to 9V.

1ms/DIV

Output
Voltage

9V

Output
Current

Loads such as decelerating motors and inductors can feed voltage back to the
power supply. This feature is also called return voltage immunity or resistance
against Back- E.M.F. (Electro Magnetic Force).

Rockwell Automation Publication 1606-RM055B-EN-P - February 2017 15

Basic Power Supply 5 A

This power supply is resistant and does not show malfunctioning when a load
feeds back voltage to the power supply. It does not matter whether the power
supply is on or off.

The maximum allowed feed-back-voltage is 35V DC. The absorbing energy
can be calculated according to the built-in large sized output capacitor that is
specified in Output on page 10

.

External Input Protection

The unit is tested and approved for branch circuits up to 30 A (UL) and 32 A
(IEC). An external protection is only required if the supplying branch has an
ampacity greater than this. Check also local codes and local requirements. In
some countries local regulations might apply.

If an external fuse is necessary or utilized, minimum requirements need to be
considered to avoid nuisance tripping of the circuit breaker. A minimum value
of 10 A, B-characteristic or 6 A, C-characteristic breaker should be used.

Parallel Use to Increase Output Power

Do not use the power supply in parallel to increase the output power.

Parallel Use for Redundancy

Power supplies can be paralleled for redundancy to gain higher system
availability. Redundant systems require a certain amount of extra power to
support the load in case one power supply unit fails. The simplest way is to put
two power supplies in parallel. This is called a 1+1 redundancy. In case one
power supply unit fails, the other one is automatically able to support the load
current without any interruption.

This simple way to build a redundant system does not cover failures such as an
internal short circuit in the secondary side of the power supply. In such a case,
the defect unit becomes a load for the other power supplies and the output
voltage cannot be maintained any more. This can only be avoided by utilizing
decoupling diodes that are included in the redundancy module.

Recommendations for building redundant power systems:

– Use the DC-OK signal contact to monitor the individual power

supply units.
– Use separate input fuses for each power supply.
– Use separate mains systems for each power supply whenever it is

possible.
– It is desirable to set the output voltages of all units to the same value

(± 100 mV) or leave it at the factory setting.

16 Rockwell Automation Publication 1606-RM055B-EN-P - February 2017

Basic Power Supply 5 A

Unit A

AC

DC

Unit B

AC

DC

-

+

-

+

Load

+

-

Earth
(see notes)

Series Operation

Power supplies of the same type can be connected in series for higher output
voltages. It is possible to connect as many units in series as needed, providing
the sum of the output voltage does not exceed 150V DC. Voltages with a
potential above 60V DC are not SELV any more and can be dangerous. Such
voltages must be installed with a protection against touching.

Earthing of the output is required when the sum of the output voltage is above
60V DC.

Avoid return voltage (for example, from a decelerating motor or battery) which
is applied to the output terminals.

Keep an installation clearance (left/right) of 15 mm (0.59 in.)between two
power supplies and avoid installing the power supplies on top of each other.

Pay attention that leakage current, EMI, inrush current, harmonics increase
when using multiple power supplies.

Figure 20 - Series Operation

Inductive and Capacitive Loads

• No limitations for inductive loads.

• No limitations for capacitive loads in combination with an additional
resistive type of load.

• Limitations apply for capacitive loads in combination with constant
current type of loads:

– 20 mF Max with an additional 2.5 A constant current load and
– 10 mF max with an additional 5 A constant current load.

Charging of Batteries

Do not use the power supply to charge batteries.

Rockwell Automation Publication 1606-RM055B-EN-P - February 2017 17

Basic Power Supply 5 A

Operation on Two Phases

The power supply can also be used on two-phases of a three-phase-system.
Such a phase-to-phase connection is allowed as long as the supplying voltage is

+10%

below 240V

Figure 21 - Operation on Two Phases

.

Power Supply

L

Fuse

N

PE

AC

internal

fuse

DC

L3

L1

max.

+10%

240V

L2

Use in a Tightly Sealed Enclosure

When the power supply is installed in a tightly sealed enclosure, the
temperature inside the enclosure is higher than outside. In such situations, the
inside temperature defines the ambient temperature for the power supply.

The following measurement results can be used as a reference to estimate the
temperature rise inside the enclosure.

The power supply is placed in the middle of the box; no other heat producing
items are inside the box.

•Enclosure
– Rittal Type IP 66 Box PK 9516 100
–Plastic
– 110 x 180 x 165 mm (4.33 x 7.09 x 6.50 in)

•Input

– 230V AC

Attribute Case A Case B

(1)

Load

Temperature inside the box

Temperature outside the box 24.4 °C (75.9 °F) 24.2 °C (75.6 °F)

Temperature rise 17.1K 14.5K

(1) Load is placed outside the box.

(2) In the middle of the right side of the power supply with a distance of 1 cm (0.39 in.).

18 Rockwell Automation Publication 1606-RM055B-EN-P - February 2017

(2)

24V, 5 A 24V, 4 A (=80 %)

41.5 °C (106.7 °F) 38.9 °C (102 °F)

Specifications

Basic Power Supply 5 A

Attribute 1606-XLB120E Notes

Output voltage DC 24V

24…28V DC Adjustment range

Output for AC 110…120/

220…240V mains:

for AC 100/200V mains: 5.0...4.3 A

Output ripple < 100 mVpp 20 Hz to 20 MHz

AC Input voltage AC 100…120V/

Mains frequency 50…60 Hz ±6 %

AC Input current 1.72 A/1.05 A at 120/ 230V AC

Power factor 0.64/0.54 at 120/ 230V AC

AC Inrush current 22 A/33 A peak at 120/ 230V AC, 40 °C (140 °F)

Efficiency 91.2 /92.3% at 120/ 230V AC

Losses 11.6 W/10.0 W at 120/ 230V AC

Temp. range -10… +70 °C

Derating 3 W/°C 55…70 °C (131… 158 °F)

Hold-up time 51 ms/50 ms at 120/ 230V AC

Dimensions 39 x 124 x124 mm

Weight 370 g/0.81 lb

(1) 50…70 °C (122…158 °F) for AC 100 V/ 200V mains

5.0...4.3 A

3.1...2.7 A

2.5...2.1 A

200…240V

(14… 158 °F)

(1.53 x 4.88 x 4.88)

at 24…28V, <55 °C (122 °F)
at 24…28V, <70 °C (158 °F)

at 24…28V, <50 °C (122 °F)
at 24…28V, <70 °C (158 °F)

±10% Auto-Select

operational

W x H x D

(1)

Rockwell Automation Publication 1606-RM055B-EN-P - February 2017 19

Basic Power Supply 5 A

Allowed Output
Current at 24V

0

0 2000 4000

6000m

1

2

3

4

5

6A

Altitude

A

.

.

.

T

a

m

b

<

5

5

°

C

B

.

.

.

T

a

m

b

<

4

5

°

C

C

.

.

.

T

a

m

b

<

3

5

°

C

A

B

C

Environment

Attribute 1606-XLB120E Notes

Operational temperature

(1)

-10… +70 °C (14… 158 °F) reduce output power according to Figure 22

Storage temperature -40… +85 °C (-40… 185 °F) for storage and transportation

Output derating

Humidity

Vibration sinusoidal

(2)

(3)

3W/°C (55…70 °C 131…158 °F)
3W/°C (50…70 °C; 122…158 °F)

5...95% r.h. IEC 60068-2-30

(4)

2-17.8Hz: ±1.6mm; 17.8-500Hz: 2g

for AC 110-120/220-240V mains systems
for AC 100/200V mains systems

IEC 60068-2-6

2 hours/axis

(5)

Shock

30g 6ms, 20g 11ms

IEC 60068-2-27

3 bumps/direction, 18 bumps in total

Altitude 0…2000 m (0…6 560 ft.) without any restrictions

2000…6000 m (6 560… 20 000 ft.) reduce output power or ambient temperature,

see Figure 22 IEC 62103, EN 50178,
overvoltage category II

Altitude derating 7.5W/1000m or 5 °C/1000m > 2000 m (6500 ft.), see Figu re 23

Overvoltage category III IEC 62103, EN 50178, altitudes up to 2000m

II altitudes from 2000m to 6000m

Degree of pollution 2 IEC 62103, EN 50178, not conductive

LABS compatibility The unit does not release any silicone or other LABS-critical substances and is suitable for

use in paint shops.

(1) Operational temperature is the same as the ambient or surrounding temperature and is defined as the air temperature 2cm below

the unit.

(2) For AC 208V mains use AC 200…220V values.

(3) Do not energize while condensation is present.

(4) Tested on a DIN Rail with a thickness of 1.3 mm.

(5) Tested on a DIN Rail with a thickness of 1.3 mm.

Figure 22 - Output Current vs. Ambient Temperature Figure 23 - Output Current vs. Altitude

20 Rockwell Automation Publication 1606-RM055B-EN-P - February 2017

Allowable Output Current at 24V

5.0A

4.0A

3.1A

2.5A

2.0A

1.0A

a) AC 110-120/ 220-240V mains
b) AC 100/ 200V mains

0

Ambient Temperature

-10 0 +20 +40

a

b

+70°C

+55

+50

Basic Power Supply 5 A

DA

C

B

B

*)

N

L

Input DC-ok

Earth, PE

Output

-

+

B*) When testing input to DC-OK ensure that
the max. voltage between DC-OK and the
output is not exceeded (column D). We
recommend connecting DC-OK pins and the
output pins together when performing the test.

Dielectric Strength

The output voltage is floating and has no ohmic connection to the ground.
Type and factory tests are conducted by the manufacturer. Field tests can be
conducted in the field using the appropriate test equipment, which applies the
voltage with a slow ramp (2 s up and 2 s down). Connect all input-terminals
together and all output poles before conducting the test. When testing, set the
cutoff current settings to the value in the following table.

ABCD

Type test 60 s 2500V AC 3000V AC 1000V AC 500V AC

Factory test 5 s 2500V AC 2500V AC 500V AC 500V AC

Field test 5 s 2000V AC 2000V AC 500V AC 500V AC

Cutoff current setting > 10 mA > 10 mA > 15 mA > 1 mA

Figure 24 - Dielectric Strength

To meet the PELV requirements according to EN60204-1 § 6.4.1, we
recommend that either the + pole, the – pole or any other part of the output
circuit be connected to the protective earth system. This helps to avoid
situations in which a load starts unexpectedly or cannot be switched off when
unnoticed earth faults occur.

Rockwell Automation Publication 1606-RM055B-EN-P - February 2017 21

Basic Power Supply 5 A

Standards Compliance and Certifications

EC Declaration of Conformity The CE Marking indicates conformance with the low voltage directive and

UL 508 Listed for use as Industrial Control Equipment ;U.S.A. (UL 508) and Canada

UL 60950-1 Recognized for use as Information Technology Equipment,

RCM Declaration of Conformity C-tick is for products intended for sale and use within the Australian

EAC EAC is for products intended for sale and use within the Russian market.

EMC Directive. EN 60950-1, EN 61000-6

(C22.2 No. 14-15); File: E56639

U.S.A. (UL 60950-1) and Canada (C22.2 No. 60950); File: E 168663.

market.

22 Rockwell Automation Publication 1606-RM055B-EN-P - February 2017

Approximate Dimensions

128.95
(5.08)

and Weight

Basic Power Supply 5 A

Attribute 1606-XLB120E

Width 39 mm (1.54 in.)

Height 125 mm (4.92 in.)

(1)

Depth

128.95 mm (5.08 in.)

Weight 370 g (0.81 lb)

DIN Rail Use 35 mm DIN rails according to EN 60715 or EN 50022 with a height of 7.5 or 15 mm.

Plastic Material of Housing Flame retardant Polycarbonate (PC) - UL94-V0 Vicat softening temperature specified

with 149 °C according to ASTM D1525

Installation Clearances Keep the following installation clearances: 40 mm on top, 20 mm on the bottom, 5

mm on the left and right sides are recommended when the device is loaded
permanently with more than 50% of the rated power. Increase this clearance to 15 mm
in case the adjacent device is a heat source (for example, another power supply).

(1) The DIN rail height must be added to the unit depth to calculate the total required installation depth.

Dimensions are in mm (in).

Figure 25 - Front View

Figure 26 - Side View

39

(1.54)

125

(4.92)

Rockwell Automation Publication 1606-RM055B-EN-P - February 2017 23

Basic Power Supply 5 A

Notes:

24 Rockwell Automation Publication 1606-RM055B-EN-P - February 2017

Rockwell Automation Support

Use the following resources to access support information.

Documentation Feedback

Your comments will help us serve your documentation needs better. If you have any suggestions on how to improve this document, complete the
How Are We Doing? form at http://literature.rockwellautomation.com/idc/groups/literature/documents/du/ra-du002_-en-e.pdf

.

Technical Support Center

Knowledgebase Articles, How-to Videos, FAQs, Chat, User
Forums, and Product Notification Updates.

https://rockwellautomation.custhelp.com/

Local Technical Support Phone Numbers Locate the phone number for your country. http://ww w.rockwellautomation.com/global/support/get-support-now.page

Direct Dial Codes

Find the Direct Dial Code for your product. Use the code to
route your call directly to a technical support engineer.

http://www.rockwellautomation.com/global/support/direct-dial.page

Literature Library

Installation Instructions, Manuals, Brochures, and
Technical Data.

http://www.rockwellautomation.com/global/literature-library/overview.page

Product Compatibility and Download
Center (PCDC)

Get help determining how products interact, check
features and capabilities, and find associated firmware.

http://www.rockwellautomation.com/global/support/pcdc.page

.

Rockwell Otomasyon Ticaret A.Ş., Kar Plaza İş Merkezi E Blok Kat:6 34752 İçerenköy, İstanbul, Tel: [phone]

Rockwell Automation maintains current product environmental information on its website at http://www.rockwellautomation.com/rockwellautomation/about-us/sustainability-ethics/product-environmental-compliance.page.

Allen-Bradley, Rockwell Automation, and Rockwell Softwa re are trademarks of Rockwell Automation, Inc.

Trademarks not belonging to Rockwell Automation are property of their respec tive companies.

Publication 1606-RM055B-EN-P —February 2017

Supersedes Publication 1606-RM055A-EN-P— December 2016 Copyright © 2017 Rockwell Auto mation, Inc. All rights reserved. Pr inted in the U.S.A.