RY/RM Series
Relays
E-22
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USA: (800) 262-IDEC or (408) 747-0550, Canada: (888) 317-IDEC
E
Relays
Key features of the RY series include:
• Compact miniature size saves space
• 2PDT and 4PDT models, available with bifurcated crossbar contacts,
ensure reliable low-current switching for dry circuit applications
• Choice of plug-in/solder or PCB type terminals
• Options include check button for test operation and indicator lights
• DIN rail, surface, panel, and PCB type sockets available for a wide
range of mounting applications
Specifications
Contact Material
RY2, RY4:
Silver (Ag), gold-plated
RY22, RY42:
Ag-Pd alloy
RM:
Silver (Ag)
Contact Resistance
RY2, RY4:
50m
Ω
maximum
RY22, RY42:
100m
Ω
maximum
RM:
30m
Ω
maximum
Minimum
Applicable Load
RY2, RY4:
5V DC, 10mA/24V DC, 5mA
RM2:
24VDC/10mA, 5VDC/20mA
(reference value)
Bifurcated contacts:
RY22, RY42:
1V DC, 100µA (reference value)
Operating Time
20ms maximum
Release Time
20ms maximum
Maximum Continuous
Applied Voltage
(AC/DC) at 20°C
110% of the rated voltage
Minimum Operating
Voltage (AC/DC) at 20°C
80% of the rated voltage
Drop-Out Voltage (AC)
30% or more of the rated voltage
Drop-Out Voltage (DC)
10% or more of the rated voltage
Power Consumption
RY2, RY22:
DC: approximately 0.8W
AC: approximately 1.1VA (50Hz), 1VA (60Hz)
RY4, RY42, RM2:
DC: approximately 0.9W
AC: approximately 1.4VA (50Hz), 1.2VA (60Hz)
Insulation Resistance
100M
Ω
minimum
(measured with 500V DC megger)
Dielectric Strength
RY2, RY22:
Between live and dead parts: 1,500V
AC, 1 minute; Between contact and coil: 1,500V
AC, 1 minute; Between contacts of
different poles: 1,500V AC, 1 minute; Between
contacts of the same pole: 1,000V AC, 1 minute
RY4, RY42, RM2,:
Between live and dead parts:
2,000V AC, 1 minute; Between contact and coil:
2,000V AC, 1 minute; Between contacts of differ-
ent poles: 2,000V AC, 1 minute; Between contacts
of the same pole: 1,000V AC, 1 minute
Frequency Response
1,800 operations/hour
Temperature Rise
Coil: 85°C maximum
Contact: 65°C maximum
Vibration Resistance
0 to 6G (55Hz maximum)
Shock Resistance
RY2, RY22:
100N (approximately 10G)
RY4, RY42, RM2:
200N (approximately 20G)
Life
Expectancy
Electrical
RY2, RY4:
over 200,000
operations (120V, 3A)
RY22, RY42:
over 200,000
operations (120V AC, 1A)
RM2:
over 500,00 operations (240V AC, 5A)
Mechanical
over 50,000,000 operations
Operating Temperature
–30 to +70°C
Weight
DPDT: 23g; 4PDT: 34g (approximately)
RY/RM Series — General Purpose Miniature Relays
Order standard voltages for fastest delivery. Allow extra delivery time
for non-standard voltages.
UL Recognized
File No. E55996
CSA Certified
File No.LR35144
File No. B020813332452
Ordering Information
RY4S-U AC110-120V
Basic Part No. Coil Voltage:
Relays
RY/RM Series
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E
Relays
Part Numbers: RY/RM Series with Options
Coil Ratings
Termination Contact Configuration Basic Part No. Indicator Light Check Button Indicator Light and Check Button Top Bracket
S
Solder/plug-in
DPDT small footprint RY2S-U RY2S-UL RY2S-UC RY2S-ULC RY2S-UT
DPDT
(bifurcated contacts) RY22S-U RY22S-UL — — RY22S-UT
DPDT wide footprint RM2S-U RM2S-UL RM2S-UC RM2S-ULC RM2S-UT
4PDT RY4S-U RY4S-UL RY4S-UC RY4S-ULC RY4S-UT
4PDT
(bifurcated contacts) RY42S-U RY42S-UL RY42S-UC RY42S-ULC RY42S-UT
V
PCB 0.031"
(0.8mm) wide
DPDT small footprint RY2V-U RY2V-UL RY2V-UC RY2V-ULC —
DPDT
(bifurcated contacts) RY22V-U RY22V-UL — — —
DPDT wide footprint RM2V-U RM2V-UL RM2V-UC RM2V-ULC —
4PDT RY4V-U RY4V-UL RY4V-UC RY4V-ULC —
4PDT
(bifurcated contacts) RY42V-U RY42V-UL RY42V-UC RY42V-ULC —
Rated Voltage (V) Rated Current ±15% at 20°C Coil Resistance
±10% at 20°C
Coil Inrush
(60Hz)
Coil Inductance
60Hz 50Hz Energizing De-Energizing
AC
RY2,
RY22
RM2,
RY4,
RY42
RY2,
RY22
RM2,
RY4,
RY42
RY2,
RY22
RM2,
RY4,
RY42
RY2,
RY22
RM2,
RY4,
RY42
RY2,
RY22
RM2,
RY4,
RY42
RY2,
RY22
RM2,
RY4,
RY42
6V 150mA 200mA 170mA 240mA 18.8
Ω
9.4
Ω
250mA 340mA 0.09H 0.08H 0.06H 0.04H
12V 75mA 100mA 86mA 121mA 76.8
Ω
39.3
Ω
120mA 170mA 0.37H 0.30H 0.22H 0.16H
24V 37mA 50mA 42mA 60.5mA 300
Ω
153
Ω
56mA 85mA 1.5H 1.2H .9H 0.63H
120V* 7.5mA 11mA 8.6mA 13.1mA 7,680
Ω
4,170
Ω
12mA 16mA 37H 33H 22H 15H
240V † 3.2mA 5.5mA 3.7mA 6.6mA 31,200
Ω
15,210
Ω
7mA 8mA 130H 130H 77H 62H
DC
RY2, RY22 RM2, RY4, RY42 RY2,
RY22
RM2,
RY4,
RY42
N/A
6V 128mA 150mA 47Ω40Ω
12V 64mA 75mA 188Ω160Ω
24V 32mA 36.9mA 750Ω650Ω
48V 18mA 18.5mA 2,660Ω2,600Ω
110V‡ — 9.1mA — 12,100Ω
Part Numbers
Ratings
* For RY4/RY42/RM2 relays = AC110/120V AC.
† For RY4/RY42/RM2 relays = 220/240V AC.
‡ For RY4/RY42/RM2 relays = 100/110V DC.
Contact Ratings (gold plated) RY4, RY2
Resistive Inductive
Voltage Contact UL CSA UL CSA
30V DC DPDT 3A 3A 3A 1.5A
4PDT 5A 5A 5A 1.5A
100V DC DPDT 0.2A — 0.2A 0.2A
4PDT 0.2A — 0.2A 0.2A
120V AC DPDT 3A 3A 1.5A 1.5A
4PDT 5A 5A 5A 5A
240V AC DPDT 3A 3A 0.8A 0.8A
4PDT 5A 5A 5A 5A
Contact Ratings (bifurcated) RY42, RY22
Contact Ratings RM2
Voltage Resistive UL/CSA Inductive UL/CSA
30V DC 1A 0.5A
120V AC 1A 0.5A
240V AC 0.8A 0.4A
Resistive Inductive
Voltage Nominal UL CSA Nominal UL CSA
30V DC 5A 5A 5A 2.5A — 2.5A
110V DC 0.4A 0.4A — 0.4A — 0.4A
120V AC 5A 5A 5A 2.5A 2.5A 2.5A
240V AC 5A 5A 5A 2A 2A 2A
RY/RM Series Relays
E-24 www.idec.com USA: (800) 262-IDEC or (408) 747-0550, Canada: (888) 317-IDEC
E
Relays
Part Numbers: Sockets
Relay Standard DIN
Rail Mount
Finger-Safe
DIN Rail Mount Panel Mount PC Mount
RY2S
RY22S SY2S-05 SY2S-05C SY2S-51 SY2S-61
RM2 SM2S-05 SM2S-05C SM2S-51
SY4S-61
SY4S-62
RY4S
RY42S SY4S-05 SY4S-05C SY4S-51
Applicable Sockets
Springs (optional)
Part Number Use With
SY2S-02F1➂
SFA-101①
SFA-202➁SY2S-05, -05C
SFA-301①
SFA-302➁
SY4S-51F1➂SY2S-51, -61
SY4S-02F1➂
SFA-101①
SFA-202➁SY2S-05, -05C
SFA-301①
SFA-302➁
SY4S-51F1➂SY4S-51, -61
① Top latch
➁ Side latch
➂ Pullover spring
See Section F for details on sockets. All DIN r ail mount soc kets
shown above can be mounted using DIN rail BNDN1000.
Internal Circuits
85
1
9
1413
(-) (+)
4
12
65
1
9
1413
(-) (+)
RY4, RY42
2
10
7
3
11
8
4
12
RY2, RY22
RM
14
58
912
13
(
-
)(
+
)
14
Image as viewed from bottom of relay. Refer to socket for exact
wiring layout (Section F).
Relays RY/RM Series
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Relays
RY2 Bifurcated Contacts RY42, RY22
RY4 RM2
Maximum Switching Capacity
15
0.5
0.1
1
5
10 100 200 30050
Load Voltage (V)
Load Current (A)
DC inductive
AC
inductive
AC resistive
DC
resistive
15
0.5
1
5
3
10 100 200 30050
Load Voltage (V)
DC inductive DC resistive
Load Current (A)
AC resistive
AC
inductive
0.1
RY2
RY4/RM2
15
0.05
0.01
0.1
0.5
1
10 100 200 30050
Load Current (A)
Load Voltage (V)
DC resistive
DC inductive
AC
resistive
AC
inductive
RY Bifurcated
Electrical Life Curves
01
50
100
500
1000
20
10
23
AC 110V Resistive
AC 220V Inductive
AC 220V Resistive
AC 110V Inductive
Load Current (A)
Life (x 10,000) Operations
05
50
100
500
1000
20
10
23
DC 30V Resistive
DC 30V Inductive
DC 100V Resistive
DC 100V Inductive
Load Current (A)
Life (x 10,000) Operations
1
50
100
500
1000
20
10
AC 110V Resistive
AC 220V Inductive
AC 220V Resistive
AC 110V Inductive
Load Current (A)
Life (x 10,000) Operations
1
50
100
500
1000
20
10
DC 30V Resistive
DC 30V Inductive
DC 100V Resistive
DC 100V Inductive
Load Current (A)
Life (x 10,000) Operations
1A 2A 3A 4A 5A
10
7
10
6
10
5
10
4
Load Current (A)
Life (number of operating cycles)
RY4 AC Load
250V AC Inductive
120V AC Inductive
240V AC Resistive
120V AC Resistive
1A 2A 3A 4A 5A
107
106
105
Load Current (A)
Life (number of operating cycles)
RY4 DC Load
104
30V DC Resistive
30V DC Inductive
110V DC Resistive
110V DC Inductive
103524
50
100
500
1000
10
AC 100V Resistive
AC 220V Inductive
AC 220V Resistive
AC 110V Inductive
Load Current (A)
Life (x 10,000) Operations
103524
50
100
500
1000
10
DC 30V Resistive
DC 30V Inductive
DC 100V Resistive
DC 100V Inductive
Load Current (A)
Life (x 10,000) Operations
RY/RM Series Relays
E-26 www.idec.com USA: (800) 262-IDEC or (408) 747-0550, Canada: (888) 317-IDEC
E
Relays
Solder Terminal
Plug-in
RY2S
With Top Bracket
Plug-in
RY2S-UT, RY22S-UT
RY4S RY4S-UT
PCB Terminal
RY2V
PCB Terminal
RY4V, RY42V
RY42S
RY22S
RY42S-UT
RY22V
PCB Terminal
RM2S, RM2V
SY2S-05A: 61.5 (63.5) max., SY2S-51: 39.6 (41.6) max.
13
9
5
1
8
14
12
4
35.6 max. 5.4 14
27.5
2.6
0.5
Total length from panel surface including relay socket
Dimensions in the ( )
include a hold-down spring.
3 × ø1.2 oblong hole
13
9
5
1
8
14
12
4
14.5
3.5
35.6 max. 5.4
2
38
43.2
27.5
6.4 6.3 4.1
0.5 2.6
4.4
3 × ø1.2 oblong hole
4
8
12
14
11
7
3
10
6
13
5
9
12
35.6 max. 6.4 21
27.5
0.5 2.6
Total length from the panel surface including relay socket
SY4S-05A: 61.5 (63.5) max., SY4S-51: 39.6 (41.6) max.
2.2 × ø1.2
oblong
hole Dimensions in the ( )
include a hold-down spring.
12
14
1110
13
9
4
87
3
65
12
21.5
3.5
35.6 max. 6.4
2
38
43.2
27.5
6.4 6.3 4.1
0.5
4.4 4.4 4.4
2.6
2.2 × ø1.2 oblong hole
13
9
5
1
8
14
12
4
35.6 max. 4 14 4.4
12.7 4.1
6.4
7.15
27.5
0.5 0.8
2.6
0.5
8-ø1 holes
9
1
13
54
8
12
14
35.6 max. 4 21 13.2
27.5
7.15
6.4
12.7 4.1
0.5
0.8
2.6
0.5 8-ø1 hole
4
8
12
14
11
7
3
10
6
13
5
9
12
35.6 max. 4 21 4.4 4.4
6.6
12.7 4.1
6.4
7.15
27.5
0.5 2.6
0.8
0.5
14-ø1 holes
All dimensions in mm.
Dimensions
