IDEC RH Catalog Page

Relays & Sockets

RH

RH Series Compact Power Relays

Key features

• SPDT through 4PDT, 10A contacts

• Compact power type relays

• Miniature power relays with a large capacity

• 10A contact capacity

• Compact size saves space

Contact Model

Standard

SPDT

DPDT

3PDT

4PDT

PCB terminal relays are designed to mount directly to a circuit board without any socket.

With Indicator

With Check Button

With Indicator and Check Button

Top Bracket Mounting

With Diode (DC coil only)

With Indicator and Diode (DC coil only)

Standard

With Indicator

With Check Button

With Indicator and Check Button

Top Bracket Mounting

With Diode (DC coil only)

With Indicator and Diode (DC coil only)

Standard

With Indicator

With Check Button

With Indicator and Check Button

Top Bracket Mounting

With Diode (DC coil only)

With Indicator and Diode (DC coil only)

Standard

With Indicator

With Check Button

With Indicator and Check Button

Top Bracket Mounting

With Diode (DC coil only)

With Indicator and Diode (DC coil only)

Part Number Selection

Part Number

Blade

Terminal

RH1B-U

RH1B-UL

RH1B-UC

RH1B-ULC

RH1B-UT

RH1B-UD

RH1B-ULD

RH2B-U

RH2B-UL

RH2B-UC

RH2B-ULC

RH2B-UT

RH2B-UD

RH2B-ULD

RH3B-U

RH3B-UL

RH3B-UC

RH3B-ULC

RH3B-UT

RH3B-UD

RH3B-ULD

RH4B-U

RH4B-UL

RH4B-UC

RH4B-ULC

RH4B-UT

RH4B-UD

RH4B-ULD

PCB Termi-

0 RH1V2-U 0

—

0

—

0

—

0

—

0

0 RH1V2-UD 0

— DC12V, DC24V, DC48V, DC110V

0

0 RH2V2-U 0

0 RH2V2-UL 0

—

0

—

0

—

0

0 RH2V2-UD 0

0 RH2V2-ULD 0

0 RH3V2-U 0

0 RH3V2-UL 0

—

0

—

0

—

0

—

0

—

0

0 RH4V2-U 0

0 RH4V2-UL 0

—

0

—

0

—

0

0 RH4V2-UD 0

—

0

nal

AC6V, AC12V, AC24V, AC110V, AC120V,
AC220V, AC240V DC6V, DC12V, DC24V,
DC48V, DC110V

DC6V, DC12V, DC24V, DC48V, DC110V

AC6V, AC12V, AC24V, AC110-120V,

AC220-240V

DC6V, DC12V, DC24V, DC48V, DC100-110V

DC6V, DC12V, DC24V, DC48V, DC100-110V

AC6V, AC12V, AC24V, AC110V, AC120V,
AC220V, AC240V DC6V, DC12V, DC24V,
DC48V, DC110V

DC6V, DC12V, DC24V, DC48V, DC110V

AC6V, AC12V, AC24V, AC110V, AC120V,
AC220V, AC240V DC6V, DC12V, DC24V, DC48V,
DC110V

DC6V, DC12V, DC24V, DC48V, DC110V

Coil Voltage Code

(Standard Stock in bold)

Ordering Information

When ordering, specify the Part No. and coil voltage code:
(example) RH3B-U AC120V

Part No. Coil Voltage Code

Switches & Pilot Lights Signaling Lights Relays & Sockets Timers Contactors Terminal Blocks Circuit Breakers

800-262-IDEC (4332) • USA & Canada

773

RH

Relays & Sockets

Sockets (for Blade Terminal Models)

Relays Standard DIN Rail Mount 1 Finger-safe DIN Rail Mount 1Through Panel Mount PCB Mount

RH1B SH1B-05 SH1B-O5C SH1B-51 SH1B-62
RH2B SH2B-05 SH2B-05C SH2B-51 SH2B-62
RH3B SH3B-05 SH3B-05C SH3B-51 SH3B-62

Switches & Pilot LightsSignaling LightsRelays & SocketsTimersContactorsTerminal BlocksCircuit Breakers

RH4B SH4B-05 SH4B-05C SH4B-51 SH4B-62

Hold Down Springs & Clips

Appearance Item Relay

RH1B SY2S-02F1

Pullover Wire Spring

RH2B SY4S-02F1
RH3B SH3B-05F1
RH4B SH4B-02F1

For DIN
Mount Socket

2

2

2

2

For Through Panel &
PCB Mount Socket

SY4S-51F1

1. DIN Rail mount socket
comes with two
horseshoe clips. Do
not use unless you
plan to insert pullover
wire spring. Replace­ment horseshoe
clip part number is
Y778-011.

2. Must use horseshoe clip when
mounting in DIN mount socket.
Replacement horseshoe clip
part number is Y778-011.

3. Two required per relay.

Leaf Spring (side latch) RH1B, RH2B, RH3B, RH4B SFA-202

Leaf Spring (top latch) RH1B, RH2B, RH3B, RH4B SFA-101

3

3

SFA-302

SFA-301

AC Coil Ratings

Rated Current (mA) ±15% at 20°C

Voltage

AC 50Hz AC 60Hz

(V)

SPDT DPDT 3PDT 4PDT SPDT DPDT 3PDT 4PDT SPDT DPDT 3PDT 4PDT

6 170 240 330 387 150 200 280 330 330 9.4 6.4 5.4
12 86 121 165 196 75 100 140 165 165 39.3 25.3 21.2

24 42 60.5 81 98 37 50 70 83 83 153 103 84.5

110 9.6 — 18.1 21.6 8.4 — 15.5 18.2 18.2 — 2,200 1,800

110-120 —

9.4-

10.8

— — — 8.0-9.2 — — — — — —

120 8.6 — 16.4 19.5 7.5 — 14.2 16.5 16.5 — 10,800 7,360

220 4.7 — 8.8 10.7 4.1 — 7.7 9.1 9.1 — 10,800 7,360

220-240 — 4.7-5.4 — — — 4.0-4.6 — — 18,820 — —
240 4.9 — 8.2 9.8 4.3 — 7.1 8.3 8.3 — 12,100 9,120

Coil Resistance (Ω)

±10% at 20°C

DC Coil Ratings

Coil Resistance (Ω)

±10% at 20°C

Voltage

(V)

Rated Current (mA) ±15% at 20°C

SPDT DPDT 3PDT 4PDT SPDT DPDT 3PDT 4PDT

6 128 150 240 250 47 40 25 24
12 64 75 120 125 188 160 100 96

24 32 36.9 60 62 750 650 400 388

48 18 18.5 30 31 2,660 2,600 1,600 1,550
100-110 — 8.2-9.0 — — — 12,250 — —
110 8 — 12.8 15 13,800 — 8,600 7,340

Max. Continuous

Applied Voltage

Operation Characteristics

(against rated values at 20ºC)

Pickup

Voltage

110%

maximum

3

3

80%

Operation Characteristics

(against rated values at 20ºC)

Max. Continuous

Applied Voltage

110%

Dropout

Voltage

10%

minimum

Pickup

Voltage

80%

maximum

Standard coil volt-

ages are in BOLD.

Dropout

Voltage

30%

minimum

774

www.IDEC.com

Relays & Sockets

RH

Contact Ratings

Maximum Contact Capacity

Continuous

Model

SPDT 10A

DPDT
3PDT
4PDT

Current

10A

Note: Inductive load for the rated load — cos ø = 0.3, L/R = 7 ms

Allowable Contact Power Rated Load

Resistive

Load

1540VA

300W

1650VA

300W

Inductive

Load

990VA

210W

1100VA

225W

Voltage

(V)
110 AC 10A 7A
220 AC 7A 4.5A

30 DC 10A 7A
110 AC 10A 7.5A
220 AC 7.5A 5A

30 DC 10A 7.5A

TÜV Ratings

Voltage RH1 RH2 RH3 RH4

240V AC 10A 10A 7.5A 7.5A

30V DC 10A 10A 10A 10A

AC: cos ø = 1.0, DC: L/R = 0 ms

Socket Specifications

Sockets Terminal Electrical Rating Wire Size Torque

(Coil) M3 screws
(contact) M3.5 screws with captive wire clamp

M3.5 screws with captive wire clamp 300V, 10A Maximum up to 2–#12AWG 9-11.5in•lbs

(coil) M3 screws
(contact) M3.5 screws with captive wire clamp, fingersafe

M3.5 screws with captive wire clamp, fingersafe 300V, 10A Maximum up to 2–#12AWG 9-11.5in•lbs

Solder 300V, 10A — —

PCB mount 300V, 10A — —

DIN Rail
Mount
Sockets

Finger-safe
DIN Rail
Mount

Through
Panel
Mount
Socket

PCB Mount
Socket

SH1B-05

SH2B-05
SH3B-05
SH4B-05

SH1B-05C

SH2B-05C
SH3B-05C
SH4B-05C

SH1B-51
SH2B-51
SH3B-51
SH4B-51

SH1B-62 PCB mount 250V, 10A — —
SH2B-62

SH3B-62
SH4B-62

Res.

Load

Ind.

Load

UL Ratings

Resistive General Use Horsepower Rating

Voltage

240V AC 10A 7.5A 7.5A 7A 6.5A 5A 1/3 HP 1/3 HP —
120V AC — 10A 10A — 7.5A 7.5A 1/6 HP 1/6 HP —
30V DC 10A 10A — 7A — — — — —
28V DC — — 10A — — — — — —

RH1
RH2

RH3 RH4

RH1
RH2

RH3 RH4

RH1
RH2

RH3 RH4

CSA Ratings

Voltage

240V AC 10A 10A — 7.5A 7A 7A 7A 5A 1/3 HP
120V AC 10A 10A 10A 10A 7.5A 7.5A — 7.5A 1/6 HP

30V DC 10A 10A 10A 10A 7A 7.5A — — —

250V, 10A Maximum up to 2–#12AWG

250V, 10A Maximum up to 2–#12AWG

Resistive General Use

RH1 RH2 RH3 RH4 RH1 RH2 RH3 RH4 RH1, 2, 3

5.5-9in•lbs
9-11.5in•lbs

5.5-9in•lbs
9-11.5in•lbs

Horse­power
Rating

Switches & Pilot Lights Signaling Lights Relays & Sockets Timers Contactors Terminal Blocks Circuit Breakers

Accessories

Item Appearance Use with Part No. Remarks

Aluminum
DIN Rail
(1 meter length)

DIN Rail End
Stop

Replacement
Hold-Down
Spring Anchor

All DIN rail sockets BNDN1000

DIN rail BNL5 9.1 mm wide.

DIN mount sockets and hold
down springs.

Y778-011

The BNDN1000 is designed to accommodate DIN mount sockets.
Made of durable extruded aluminum, the BNDN1000 measures 0.413
(10.5mm) in height and 1.37 (35mm) in width (DIN standard). Standard
length is 39” (1,000mm).

For use on DIN rail mount socket when using pullover wire hold down
spring. 2 pieces included with each socket.

800-262-IDEC (4332) • USA & Canada

775

RH

Specifications

Contact Material Silver cadmium oxide

Contact Resistance
Minimum Applicable Load 24V DC, 30 mA; 5V DC, 100 mA (reference value)

Switches & Pilot LightsSignaling LightsRelays & SocketsTimersContactorsTerminal BlocksCircuit Breakers

Operating Time

Release Time

Power Consumption
(approx.)

Insulation Resistance 100MΩ minimum (500V DC megger)

Dielectric Strength

Operating Frequency

Vibration Resistance

Shock Resistance

Mechanical Life 50,000,000 operations minimum

Electrical Life

Operating
Temperature

Operating Humidity 45 to 85% RH (no condensation)
Weight (approx.) SPDT: 24g, DPDT: 37g, 3PDT: 50g, 4PDT: 74g

Note: Above values are initial values.

1. Measured using 5V DC, 1A voltage drop method

2. Measured at the rated voltage (at 20°C), excluding contact bouncing
Release time of relays with diode: 40 ms maximum

3. Relays with indicator or diode: 1000V AC, 1 minute

4. For use under different temperature conditions, refer to Continuous Load Current vs. Operating Temperature Curve. The operating
temperature range of relays with indicator or diode is –25 to +40°C.

1

2

2

SPDT
DPDT

3PDT
4PDT

SPDT
DPDT

3PDT
4PDT

50mΩ maximum

20ms maximum

25ms maximum

20ms maximum

25ms maximum

SPDT AC: 1.1VA (50Hz), 1VA (60Hz) DC: 0.8W
DPDT AC: 1.4VA (50Hz), 1.2VA (60Hz) DC: 0.9W
3PDT AC: 2VA (50Hz), 1.7VA (60Hz) DC: 1.5W
4PDT AC: 2.5VA (50Hz), 2VA (60Hz) DC: 1.5W

Between live and dead parts: 2,000V AC, 1 minute

SPDT

Between contact and coil: 2,000V AC, 1 minute
Between contacts of the same pole: 1,000V AC, 1 minute

3

Between live and dead parts: 2,000V AC, 1 minute

DPDT

Between contact and coil: 2,000V AC, 1 minute

3PDT

Between contacts of different poles: 2,000V AC, 1 minute

4PDT

Between contacts of the same pole: 1,000V AC, 1 minute
Electrical: 1,800 operations/hour maximum

Mechanical: 18,000 operations/hour maximum
Damage limits: 10 to 55Hz, amplitude 0.5 mm

Operating extremes: 10 to 55Hz, amplitude 0.5 mm
Damage limits: 1,000m/s

Operating extremes: 200m/s2 (20G - SPDT, DPDT)
100m/s2 (10G - 3PDT, 4PDT)

DPDT 500,000 operations minimum (120V AC, 10A)
SPDT

3PDT

200,000 operations minimum (120V AC, 10A)

4PDT
SPDT

DPDT

4

–25 to +70°C (no freezing)

3PDT
4PDT

Relays & Sockets

2

(100G)

776

www.IDEC.com