Altech UL1077 Catalog Page

Altech UL1077

Typical UL1077 Application

Control Circuit of a UL508A Panel

Disclaimer: This is just an example application. Installation should be done by a qualified

electrician under the guidance of UL/NEC®specifications..

8 9

R-Series

E301611

UL1077 Recognized
Supplementary
Protector

• DIN Rail Mounted

• 17.5mm width per pole

• Thermal Magnetic

• 480Y/277V AC, 50/60Hz

• 10kA Short Circuit

Withstand Capacity 10kA

• Positive Trip indicator

(Green - off/tripped, Red - on)

• Applications (on the load side

of Branch Circuit Protection)
include: Sensitive Electronics,
Power Supplies, Appliance
circuits, etc.

Voltage Rating

Short Circuit Withstand Rating
(UL - Ratings)

Interrupting Capacity
(IEC/EN60898/60947-2)

Calibration Temperature

Terminal Size Acceptability - min/max

Terminal Torque - min/max

Terminal Protection Degree

SHORT CIRCUIT WITHSTAND RATINGS FOR R-SERIES SUPPLEMENTARY PROTECTOR

Trip Amp UL-Listed No Backup Fuse

Curve Range Class J Fuse Required

All 0.5 - 6A 4xRC* 10kA

All

*up to nearest rated current

8 - 63A 4xRC* 5kA

480Y/277VAC

0.5-6A (RC): 10kA with no back-up fuse
8-63A (RC):
Class J bac

0.5-63A (RC): 10kA

30°C (86°F)

2.5 mm

1.5 Nm (13 lb. in.) / 2 Nm (17.5 lb . in.)

IP20

10kA with UL-listed

k-up fuse; 5kA with no back-up fuse

2

(12 AWG) / 25mm2(3 AWG)

Backup Protection

up to 10kA up to:

DC voltage rating: 48 VDC (self-certified).

Altech UL1077

9

Altech UL1077

17.5 (0.69 in.) 35 (1.38 in.) 52.5 (2.07 in.)

44 (1.73 in.)

45 (1.77 in.)

6.5 (0.26 in.)
60 (2.36 in.)
77 (3.03 in.)

96.1 (3.80 in.)

85.5 (3.37 in.)

2

10

-3

4x10

-3

4x10

-2

10

-1

0.4

1

4

10

1

4

10

40

60

10

-2

3 4 6 8 101620

Multiple of Rated Current

Seconds Time t Minutes

BB CC DDBCD

Warning!

This information should only be used as a selection guide. The use of a Miniature Circuit Breaker/Supplementary Protector
in an application with a certain Trip-Characteristic always requires prototype testing! It is the responsibility of the circuit
design engineer to select the appropriate Miniature Circuit Breaker/Supplementary Protector for his specific application.

*The value of each characteristic is shown vertically beneath its corresponding heading.

Characteristic TripBoundaries

Trip-Characteristics* Applications

B-Characteristics

C-Characteristics

D-Characteristics

Thermal Trip

Lighting

Control

Circuits

Wiring

Protection

Business

Equipment

Appliances

Transformers

Power

Supplies

Heaters

Must not

Trip>100ms

1.13xRC 1.45xRC 3xRC 5xRC

1.13xRC 1.45xRC 5xRC 10xRC

1.13xRC 1.45xRC 10xRC 20xRC

Must Trip

<1hr

Must not

Trip>100ms

Must Trip

at 100ms

Magnetic Trip

Low

Inrush

High

Inrush

Motors

General

Electronics

Reactive

Load

1 POLE 2 POLE 3 POLE

Time
versus
Current Trip Curve

For the exact trip curve,
please refer to page 21.

Dimensions in mm

side view

10

11

B-Trip
Characteristic

E301611

Application Examples:

Business equipment, wiring protection,
lighting, appliances, control circuits and
some electronic applications. Relatively
long thermal trip delay but low magnetic
trip point.

One Pole

Three Pole

Rated Type/
Current Cat. No.

0.5A 1BU05R

1.0A 1BU1R

2.0A 1BU2R

3.0A 1BU3R

4.0A 1BU4R

5.0A 1BU5R

6.0A 1BU6R

8.0A 1BU8R
10A 1BU10R
12A 1BU12R
13A 1BU13R
15A 1BU15R
16A 1BU16R
20A 1BU20R
25A 1BU25R
30A 1BU30R
32A 1BU32R
40A 1BU40R
50A 1BU50R
60A 1BU60R
63A 1BU63R

Standard Pack: 12

Weight:

0.5A - 63A: 1.6kg (3.54 lb.)

Rated Type/
Current Cat. No.

0.5A 3BU05R

1.0A 3BU1R

2.0A 3BU2R

3.0A 3BU3R

4.0A 3BU4R

5.0A 3BU5R

6.0A 3BU6R

8.0A 3BU8R
10A 3BU10R
12A 3BU12R
13A 3BU13R
15A 3BU15R
16A 3BU16R
20A 3BU20R
25A 3BU25R
30A 3BU30R
32A 3BU32R
40A 3BU40R
50A 3BU50R
60A 3BU60R
63A 3BU63R

Standard Pack: 4

Weight:

0.5A - 63A: 1.66kg (3.67 lb.)

Two Pole

Accessories

see page 19

Rated Type/
Current Cat. No.

0.5A 2BU05R

1.0A 2BU1R

2.0A 2BU2R

3.0A 2BU3R

4.0A 2BU4R

5.0A 2BU5R

6.0A 2BU6R

8.0A 2BU8R
10A 2BU10R
12A 2BU12R
13A 2BU13R
15A 2BU15R
16A 2BU16R
20A 2BU20R
25A 2BU25R
30A 2BU30R
32A 2BU32R
40A 2BU40R
50A 2BU50R
60A 2BU60R
63A 2BU63R

d Pack: 6

Standar

Weight:

0.5A - 63A: 1.6kg (3.54 lb.)

Description Type/

Neutral Pole ALTN2
Shunt Trip (AC, DC) FA_ _ _ACR

Undervoltage Trip (AC, DC) UV_ _ _ACR

Auxiliary/Signal Contact HSTCOR
Auxiliary Contact H1COR

Lock-out Adapter EASS2

***

Insert coil voltage.

Cat. No.

***

FA_ _ _DCR

***
***

UV_ _ _DCR

***

H2COR

Four Pole

Please contact

Altech.

Non-standard current ratings available. Minimum quantities may apply. Please contact Altech for further details.

Altech UL1077

11

C-Trip
Characteristic

E301611

Application Examples:

Lighting, wiring protection, appliances,
business equipment, and control circuit
applications. Relatively long thermal trip
delay and medium magnetic trip point.

Altech UL1077

One Pole

Standard Pack: 12

Weight:

0.5A - 63A: 1.6kg (3.54 lb.)

Three Pole

Standard Pack: 4

Weight:

0.5A - 63A: 1.66kg (3.67 lb.)

Rated Type/
Current Cat. No.

0.5A 1CU05R

1.0A 1CU1R

2.0A 1CU2R

3.0A 1CU3R

4.0A 1CU4R

5.0A 1CU5R

6.0A 1CU6R

8.0A 1CU8R
10A 1CU10R
12A 1CU12R
13A 1CU13R
15A 1CU15R
16A 1CU16R
20A 1CU20R
25A 1CU25R
30A 1CU30R
32A 1CU32R
40A 1CU40R
50A 1CU50R
60A 1CU60R
63A 1CU63R

Rated Type/
Current Cat. No.

0.5A 3CU05R

1.0A 3CU1R

2.0A 3CU2R

3.0A 3CU3R

4.0A 3CU4R

5.0A 3CU5R

6.0A 3CU6R

8.0A 3CU8R
10A 3CU10R
12A 3CU12R
13A 3CU13R
15A 3CU15R
16A 3CU16R
20A 3CU20R
25A 3CU25R
30A 3CU30R
32A 3CU32R
40A 3CU40R
50A 3CU50R
60A 3CU60R
63A 3CU63R

Two Pole

Accessories

see page 19

Rated Type/
Current Cat. No.

0.5A 2CU05R

1.0A 2CU1R

2.0A 2CU2R

3.0A 2CU3R

4.0A 2CU4R

5.0A 2CU5R

6.0A 2CU6R

8.0A 2CU8R
10A 2CU10R
12A 2CU12R
13A 2CU13R
15A 2CU15R
16A 2CU16R
20A 2CU20R
25A 2CU25R
30A 2CU30R
32A 2CU32R
40A 2CU40R
50A 2CU50R
60A 2CU60R
63A 2CU63R

Standard Pack: 6

Weight:

0.5A - 63A: 1.6kg (3.54 lb.)

Description Type/

Neutral Pole ALTN2
Shunt Trip (AC, DC) FA_ _ _ACR

Undervoltage Trip (AC, DC) UV_ _ _ACR

Auxiliary/Signal Contact HSTCOR
Auxiliary Contact H1COR

Lock-out Adapter EASS2

***

Insert coil voltage.

Cat. No.

***

FA_ _ _DCR

***
***

UV_ _ _DCR

***

H2COR

Four Pole

Please contact

Altech.

12

Non-standard current ratings available. Minimum quantities may apply. Please contact Altech for further details.

D-Trip
Characteristic

E301611

Application Examples:

Transformers, power supplies and
reactive loads. Relatively long thermal trip
delay and very high magnetic trip point.

One Pole

Three Pole

Rated Type/
Current Cat. No.

0.5A 1DU05R

1.0A 1DU1R

2.0A 1DU2R

3.0A 1DU3R

4.0A 1DU4R

5.0A 1DU5R

6.0A 1DU6R

8.0A 1DU8R
10A 1DU10R
12A 1DU12R
13A 1DU13R
15A 1DU15R
16A 1DU16R
20A 1DU20R
25A 1DU25R
30A 1DU30R
32A 1DU32R
40A 1DU40R
50A 1DU50R
60A 1DU60R
63A 1DU63R

Standard Pack: 12

Weight:

0.5A - 63A: 1.6kg (3.54 lb.)

Rated Type/
Current Cat. No.

0.5A 3DU05R

1.0A 3DU1R

2.0A 3DU2R

3.0A 3DU3R

4.0A 3DU4R

5.0A 3DU5R

6.0A 3DU6R

8.0A 3DU8R
10A 3DU10R
12A 3DU12R
13A 3DU13R
15A 3DU15R
16A 3DU16R
20A 3DU20R
25A 3DU25R
30A 3DU30R
32A 3DU32R
40A 3DU40R
50A 3DU50R
60A 3DU60R
63A 3DU63R

Standard Pack: 4

Weight:

0.5A - 63A: 1.66kg (3.67 lb.)

Two Pole

Accessories

see page 19

Rated Type/
Current Cat. No.

0.5A 2DU05R

1.0A 2DU1R

2.0A 2DU2R

3.0A 2DU3R

4.0A 2DU4R

5.0A 2DU5R

6.0A 2DU6R

8.0A 2DU8R
10A 2DU10R
12A 2DU12R
13A 2DU13R
15A 2DU15R
16A 2DU16R
20A 2DU20R
25A 2DU25R
30A 2DU30R
32A 2DU32R
40A 2DU40R
50A 2DU50R
60A 2DU60R
63A 2DU63R

Standard Pack: 6

Weight:

0.5A - 63A: 1.6kg (3.54 lb.)

Description Type/

Neutral Pole ALTN2
Shunt Trip (AC, DC) FA_ _ _ACR

Undervoltage Trip (AC, DC) UV_ _ _ACR

Auxiliary/Signal Contact HSTCOR
Auxiliary Contact H1COR

Lock-out Adapter EASS2

***

Insert coil voltage.

Cat. No.

***

FA_ _ _DCR

***
***

UV_ _ _DCR

***

H2COR

Four Pole

Please contact

Altech.

Non-standard current ratings available. Minimum quantities may apply. Please contact Altech for further details.

Altech UL1077

13

1

1.13 1.45

0.01

0.05

0.1

0.5

1

5

10

20

40

1

2

4

6

8

20

10

40

60

120

2016141210987652 34

B, C and D Trip
Less than 10A

1

1.13 1.45

0.01

0.05

0.1

0.5

1

5

10

20

40

60

120

240

360

480

1200

600

2400

3600

7200

2016141210987652 34

B, C and D Trip
10A and higher

Multiple of Rated Current

Multiple of Rated Current

Seconds Minutes

Tri pping time t

Seconds Minutes

Tri pping time t

BC D

BC D

Rated
current
of MCB

Internal Impedances & Power Loss MCB Temperature Compensation

Internal
impedance

Power
loss on
CB

Maximum allowable
impedance of
breakdown loop (0.2/0.4s)

Effective rated current allowing for ambient temperature.

In(A)

Z (mΩ)

P (W)

Z

s

(Ω)

I cor (A)

Char.
B,C,D

Char.
B,C,D

Char.B Char.C Char.D

Ambient Temperature

-20°C -10°C 0°C 10°C 20°C 30°C 40°C 50°C 60°C

0.50 6600 1.7 42.0 51.1 28.8 0.61 0.59 0.57 0.55 0.53 0.50 0.47 0.44 0.42

1.00 1650 1.7 46.0 25.6 14.4 1.21 1.18 1.14 1.10 1.05 1.00 0.93 0.88 0.83

2.00 370 1.5 23.0 12.8 7.2 2.42 2.36 2.28 2.20 2.10 2.00 1.86 1.76 1.67

3.00 210 1.9 15.3 8.5 4.8 3.63 3.54 3.42 3.30 3.15 3.00 2.79 2.64 2.50

4.00 126 2.0 11.5 6.4 3.6 4.84 4.72 4.56 4.40 4.20 4.00 3.72 3.52 3.33

6.00 51 1.8 7.7 4.3 2.4 7.30 7.10 6.80 6.60 6.30 6.00 5.60 5.30 5.00

8.00 21 1.3 5.8 3.2 1.8 9.70 9.40 9.10 8.80 8.40 8.00 7.40 7.00 6.70

10.00 14.8 1.5 4.6 2.6 1.4 12.1 11.8 11.40 11.00 10.50 10.00 9.30 8.80 8.30

13.00 11.3 1.9 3.5 2.0 1.1 15.7 15.3 14.80 14.30 13.70 13.00 12.10 11.50 10.80

16.00 7.5 1.9 2.9 1.6 0.9 19.4 18.9 18.20 17.60 16.80 16.00 14.90 14.10 13.30

20.00 6.3 2.5 2.3 1.3 0.7 24.2 23.60 22.80 22.00 21.00 20.00 18.60 17.60 16.70

25.00 4.4 2.8 1.8 1.0 0.6 30.3 29.50 28.50 27.50 26.30 25.00 23.30 22.00 20.80

32.00 3.1 3.2 1.4 0.8 0.4 38.7 37.80 36.50 35.20 33.60 32.00 29.80 28.20 26.70

40.00 2.5 4.0 1.2 0.6 0.4 48.4 47.20 45.60 44.00 42.00 40.00 37.20 35.20 33.30

50.00 2.2 5.5 0.9 0.5 0.3 60.5 59.0 57.00 55.00 52.50 50.00 46.50 44.10 41.70

63.00 1.6 6.4 0.7 0.4 0.2 76.2 74.30 71.80 69.30 66.20 63.00 58.60 55.50 52.50

R-Series Trip Curves

Altech UL1077

Temperature and Power Loss Specifications

14

Accessories

R-Series
Supplementary
Protector

E301611

Shunt Trip

Undervoltage Trip

Accessories can be factory or field mounted on R-Ser ies supplementary protectors for enhanced
control and monitoring capabilities. Field mounting kits include all necessary parts and instructions.
Accessories can be gang mounted on a single controller (the A uxiliary Switch in the outside
position). The mounting arr angement links the inter nal latch-pins f or the tr ipping mechanisms ,
ensuring simultaneous trips. Handles are linked to simplify manual resetting.

Neutral
Pole

Description Type/ Cable Cable Torque Torque

Neutral ALTN2 25mm

Standard Pack: 10

Weight: 1.25kg (2.77 lb.)

(63A/480Y/277 VAC)

Cat. No. Max Min Max Min

2

AWG 3 AWG 12 17.5 lb-in 12 lb-in

2.5mm

2

2Nm 1.5Nm

Shunt Trip
and Undervoltage Trip

Description Shunt Trip Undervoltage Trip Cable Cable Torque Torque

AC Coil:

12V AC FA12ACR UV12ACR
24V AC FA24ACR UV24ACR
48V AC FA48ACR UV48ACR
60V AC FA60ACR UV60ACR
110V AC FA110ACR UV110ACR
120V AC FA120ACR UV120ACR
230V AC FA230ACR UV230ACR
277V AC FA277ACR UV277ACR
400V AC FA400ACR UV400ACR

DC Coil:

12V DC FA12DCR UV12DCR
24V DC FA24DCR UV24DCR
48V DC FA48DCR UV48DCR
110V DC FA110DCR UV110DCR

Standard Pack: 10

Weight: 1.1kg (2.43 lb.)

Type/Cat. No. Type/Cat. No. Max Min Max Min

2.5mm

2

2Nm 1.5Nm

2

2Nm 1.5Nm

25mm22.5mm
3 AWG 12 AWG 17.5 lb-in 12 lb-in

2

25mm
3 AWG 12 AWG 17.5 lb-in 12 lb-in

Auxiliary
Contact

Description Type/ Cable Cable Torque Torque

1 x CO H1COR

2 x CO H2COR

1 x CO, 1 Signal HSTCOR
& Test Button

Standard Pack: 15

Weight: H1COR: 0.5kg (1.32 lb.); H2COR, HSTCOR: 0.72kg (1.59 lb.)

(4A/230 VAC)

Cat. No. Max Min Max Min

2

2.5mm

AWG 12 AWG 20 4 lb-in 3 lb-in

0.5mm

2

0.5Nm 0.33Nm

Lock-out
Adaptor

Description Type/ Lock

Yellow EASS2 small suitcase lock

Standard Pack: 10

Weight: 50g (1.76 oz.)

Cat. No. to use

Altech UL1077

15