AbsolutAire RU2 User Manual

Ordering Information

Basic Part No. Coil Voltage:

RU 4 S – ( ) – D12

# of Contacts

2 = DPDT
4 = 4PDT
42 = 4PDT bifurcated
contacts

Option*

(Blank) = with latching check
button
C = without check button
M = momentary check button
D = surge suppression diode (DC coils only)

Coil V oltage Code**

D12 = 12V DC
D24 = 24V DC
D110 = 110V DC
A24 = 24V AC
A110 = 110-120V AC
A220 = 220-240V AC

1. *All come with bi-polar LED, mechanical flag indica­tor, marking plate.

2. **Contact IDEC for other voltages.

RU Series

RU Series — General Purpose Relays

Key features of the RU series include:

• Non-polarized LED indicator standard

• Solder-free construction (spot welded, no solder points, lead-free)

• No internal wires

• Mechanical flag indicator standard

• Manual latching lever with color coding for AC or DC coil

•Available without latching lever (or with momentary check button)

• Snap-on marking plate standard

• Cadmium-free contacts - RoHS compliant

• Color coded coils for visual distinction

• Contact rating 6A: 4PDT
10A: DPDT

E

Contact Material

Contact Resistance
Minimum

Applicable Load

Relays

Operating Time
Release Time
Maximum

Continuous Applied
Voltage
(AC/DC) at 20°C

Minimum
Operating Voltage
(AC/DC) at 20°C

Drop-Out Voltage
(AC) at 20°C

Drop-Out Voltage
(DC) at 20°C

Power Consumption

Dielectric Strength

Specifications

Frequency Response

Vibration Resistance

Shock Resistance

Life Expectancy

Degree of Protection
Operating Temperature
Weight

AgSnOIn (silver tin oxide
indium)

Between contact and coil:
2,500VAC, 1 minute
Between poles:
2,500VAC, 1 minute
Between contacts of the
same pole:
1,000VAC, 1 minute

RU2 RU4

50 m

Ω

maximum

24VDC, 5mA

(reference value)

20 msec maximum
20 msec maximum

110%

80%

30%

10%

1.1-1.4VA (AC); 0.9-1.0W (DC)

1,800 operations/hr

Operating extremes:

10 to 55Hz,

Amplitude 1.0 mm p-p

Damage limits: 10 to 55Hz,

Amplitude 1.0 mm p-p

Operating extremes:

150 m/s

Damage limits:

1,000 m/s

Mechanical:

AC: 20,000,000 operations

minimum

DC: 30,000,000 operations

minimum

Electrical:

see electrical life curve

IP40

-55 to +70°C (no freezing)
35g

AuAg/Ag (gold-silver alloy
on silver)

1V DC, 1mA (standard)
1V DC, 0.1mA (bifurcated)

Between contact and coil:
2,500VAC, 1 minute
Between poles:
2,000VAC, 1 minute
Between contacts of the
same pole:
1,000VAC, 1 minute

2

(15G)

2

(100G)

Relays

UL Recognized
File No. E66043, Vol 8, sec. 1

Vol 8, sec. 2

B020813332451

CSA Certified
File No. LR35144-135844

Consult factory for other voltages.

E-8

www.idec.com

USA: (800) 262-IDEC or [phone], Canada: (888) 317-IDEC

Relays RU Series

*DC

Part Numbers: RU Series with Options

Termination

S: Solder/plugin

Standard

Bifurcated 4PDT RU42S RU42S-C RU42S-M RU42S-D

Part Numbers: Sockets

Relays

RU2S SU2S-11L SM2S-05 SM2S-05C

RU4S SU4S-11L SY4S-05 SY4S-05C

Spring Clamp
DIN Rail Mount

See Section F for details on sockets. All DIN rail mount
sockets shown above can be mounted using DIN rail BNDN1000.

Contact
Configuration

DPDT RU2S RU2S-C RU2S-M RU2S-D

4PDT RU4S RU4S-C RU4S-M RU4S-D

Standard DIN
Rail Mount

Standard

Finger-Safe DIN
Rail Mount

Part Numbers

Without
Latching Lever

Panel Mount PC Mount

SY4S-51

With Momentary
Check Button

SY4S-61
SY4S-62

With Diode*

coils only.

Springs & Clips (optional)

Part Number Use With

SFA-101①
SFA-202
SY4S-02F1➂

SFA-301①
SFA-302
SY4S-51F1➂

use with SY4S-05, -05C

➁

SM2S-05, -05C
SU4S-11L, SU2S-11L

➁

use with SY4S-51, -61

① Top latch

➁ Side latch
➂ Pullover spring

E

Relays

Part Numbers: Marking Strip Marking Strip Color Code

Item Part Number Quantity Color Code Color Code

RU Marking Strip RU9Z-P①PN10, 10 pieces per package Yellow* Y Blue S

In place of ①, insert color code
from chart at right.

Green G White W

Amber A

*yellow marking
strip standard on
all RU relays.

Ratings

Coil Ratings

Rated Voltage Voltage Code

24V A24

AC

110-120V A110
220-240V A220
12V D12

DC

24V D24
110V D110

*Voltage printed in black.

Coil Tape

Colors

white 37.5mA 164 Ω 60mA 1.8H 0.96H
dark blue 8.4mA 4,550 Ω 14mA 36H 22H
red 4.2mA 18,230Ω 7mA 144H 87H
yellow* 83.3mA 160 Ω
green 41.7mA 605 Ω
yellow* 9.1mA 12, 100 Ω

Rated Current ±15%

at 20°C

Coil Resistance

±10% at 20°C

Inrush

Current

Energizing De-Energizing

Inductance

N/A

Contact Ratings (Standard) Contact Ratings (Bifurcated)

Voltage Resistive Inductive Voltage Resistive Inductive

30V DC

110V DC

120V AC

240V AC

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DPDT 10A 5A 30V DC 4PDT 3A 1.5A

4PDT 6A 3A 110V DC 4PDT – –

DPDT 0.6A 0.3A 120V DC 4PDT 3A 0.8A

4PDT 0.4A 0.2A 250V DC 4PDT 3A 0.8A

DPDT 10A 5A

4PDT 6A 3A

DPDT 10A 5A

4PDT 6A 3A

RU Series Relays

DC110V

Load Current (A)

DC30V

AC250V

6 3 10.50.1

10

100

1

50

500

6

DC110V

0.1 0.5 1 3

AC250V
DC30V

Load Current (A)

DC L/R=7ms

AC COS =0.3

500

50

1

100

1000

10

DC110V

AC250V
DC30V

Load Current (A)

500

50

1

100

10

0.1 0.5 1 3 6

0.02

DC L/R=7ms

AC COS =0.3

DC110V

DC30V

AC250V

10

100

1

50

500

Internal Circuit*

RU2S Standard RU2S-D with Diode RU4S/RU42S Standard RU4S-D/RU42S-D with Diode

(4)42(3)32(2)22

(8)44(7)34(6)24(5)14

(12)41(11)31(10)21(9)11

(14)A2

(13)A1

(4)42(1)12

(8)44(5)14

(12)41(9)11

(14)A2

(1)12 (4)42

(5)14 (8)44

(9)11 (12)41

(13)A1

(14)A2

(1)12 (2)22 (3)32

(5)14 (6)24 (7)34 (8)44

(9)11 (10)21 (11)31 (12)41

(13)A1

(4)42

(14)A2

(1)12

(13)A1

Over 24V AC/DC

(1)12 (4)42

(5)14 (8)44

(9)11 (12)41

(13)A1

24V AC/DC or less

E

Relays

Over 24V DC

(4)42(1)12

(8)44(5)14

(12)41(9)11

(14)A2

(13)A1

(14)A2

24V DC or less

Image as viewed from bottom of relay. Refer to socket for exact
wiring layout (Section F)

RU2 (Resistive Load)

AC250V
DC30V

1000

DC110V

.

500

100

50

10

(x 10,000 operations)

Electrical Life Curves

RU4 (Resistive Load)

1000

(x 10,000 operations)

Over 24V AC/DC

(3)32(2)22(1)12

(4)42

(8)44(7)34(6)24(5)14

(12)41(11)31(10)21(9)11

(13)A1

(14)A2

24V AC/DC or less

Numbers not in parenthesis follow international system

of labeling terminals.

Over 24V DC

(1)12 (2)22 (3)32 (4)42

(5)14 (6)24 (7)34 (8)44

(9)11 (10)21 (11)31 (12)41

(13)A1

24V DC or less

RU42 (Resistive Load)

(x 10,000 operations)

(14)A2

1

Load Current (A)

RU2 (Inductive Load)

AC250V DC30V
DC110V

10 5 10.50.1

RU4 (Inductive Load)

0.1 0.5 1 3 60.02

Load Current (A)

RU42 (Inductive Load)

1000

500

100

50

10

(x 10,000 operations)

E-10 www.idec.com USA: (800) 262-IDEC or [phone], Canada: (888) 317-IDEC

AC COS =0.3
DC L/R=7ms

1

0.1 0.5 1 5 10

Load Current (A)

(x 10,000 operations)

(x 10,000 operations)

Relays RU Series

Dimensions are in mm.

RU4 (Maximum Load)

6

3

1

Load Current (A)

0.1

DC resistive

DC inductive

L/R = 7 ms

Maximum Switching Capacity

RU2 (Maximum Load)

10

5

1

Load Current (A)

0.1

DC resistive

DC inductive
L/R = 7 ms

10 30 100 250500

AC resistive

AC inductive

(cos ø = 0.3)

Load Voltage(V)

AC resistive

RU42 (Maximum Load)

6

3

1

Load Current (A)

0.1

AC inductive
(cos ø = 0.3)

DC resistive

DC inductive

L/R = 7 ms

AC resistive

AC inductive

(cos ø = 0.3)

E

Relays

10 30 100 250 500

Load Voltage(V)

Dimensions & Mounting Hole Layouts

RU2

Dimensions

Marking Plate
Removal Slot

0.5

21.0

14

58912

27.5

Marking plate removal slot is provided only on one side.
Insert a flat screwdriver into the slot to remove the marking plate.

1.2 ◊ 2.2 Hole

14

13

35.06.4

2.6

10 30 100 250 500

Load Voltage(V)

RU4/RU42

Dimensions

Marking Plate
Removal Slot

21.0

0.5

4321

8

121110

765

9

27.5

1.2 ◊ 2.2 Hole

1413

35.06.4

2.6

Marking plate removal slot is provided only on one side.
Insert a flat screwdriver into the slot to remove the marking plate.

Dimensions are in mm.

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