RH Series Datasheet by IDEC

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Switches & Pilot Lights Signaling Lights Relays & Sockets Timers Contactors Terminal Blocks Circuit Breakers
773
800-262-IDEC (4332) USA & Canada
RH
Relays & Sockets
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
Part Number Selection
Part Number
Contact Model Blade
Terminal
PCB Termi-
nal
Coil Voltage Code
(Standard Stock in bold)
SPDT
Standard RH1B-U 0RH1V2-U 0
AC6V, AC12V, AC24V, AC110V, AC120V,
AC220V, AC240V DC6V, DC12V, DC24V,
DC48V, DC110V
With Indicator RH1B-UL 0
With Check Button RH1B-UC 0
With Indicator and Check Button RH1B-ULC 0
Top Bracket Mounting RH1B-UT 0
With Diode (DC coil only) RH1B-UD 0RH1V2-UD 0DC6V, DC12V, DC24V, DC48V, DC110V
With Indicator and Diode (DC coil only) RH1B-ULD 0DC12V, DC24V, DC48V, DC110V
DPDT Standard RH2B-U 0RH2V2-U 0
AC6V, AC12V, AC24V, AC110-120V,
AC220-240V
DC6V, DC12V, DC24V, DC48V, DC100-110V
With Indicator RH2B-UL 0RH2V2-UL 0
With Check Button RH2B-UC 0
With Indicator and Check Button RH2B-ULC 0
Top Bracket Mounting RH2B-UT 0
With Diode (DC coil only) RH2B-UD 0RH2V2-UD 0DC6V, DC12V, DC24V, DC48V, DC100-110V
With Indicator and Diode (DC coil only) RH2B-ULD 0RH2V2-ULD 0
3PDT Standard RH3B-U 0RH3V2-U 0
AC6V, AC12V, AC24V, AC110V, AC120V,
AC220V, AC240V DC6V, DC12V, DC24V,
DC48V, DC110V
With Indicator RH3B-UL 0RH3V2-UL 0
With Check Button RH3B-UC 0
With Indicator and Check Button RH3B-ULC 0
Top Bracket Mounting RH3B-UT 0
With Diode (DC coil only) RH3B-UD 0DC6V, DC12V, DC24V, DC48V, DC110V
With Indicator and Diode (DC coil only) RH3B-ULD 0
4PDT Standard RH4B-U 0RH4V2-U 0
AC6V, AC12V, AC24V, AC110V, AC120V,
AC220V, AC240V DC6V, DC12V, DC24V, DC48V,
DC110V
With Indicator RH4B-UL 0RH4V2-UL 0
With Check Button RH4B-UC 0
With Indicator and Check Button RH4B-ULC 0
Top Bracket Mounting RH4B-UT 0
With Diode (DC coil only) RH4B-UD 0RH4V2-UD 0DC6V, DC12V, DC24V, DC48V, DC110V
With Indicator and Diode (DC coil only) RH4B-ULD 0
PCB terminal relays are designed to mount directly to a circuit board without any socket. Ordering Information
When ordering, specify the Part No. and coil voltage code:
(example) RH3B-U AC120V
Part No. Coil Voltage Code
RH
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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
1. DIN Rail mount socket
comes with two
horseshoe clips. Do
not use unless you
plan to insert pullover
wire spring. Replace-
ment horseshoe
clip part number is
Y778-011.
RH2B SH2B-05 SH2B-05C SH2B-51 SH2B-62
RH3B SH3B-05 SH3B-05C SH3B-51 SH3B-62
RH4B SH4B-05 SH4B-05C SH4B-51 SH4B-62
Hold Down Springs & Clips
Appearance Item Relay For DIN
Mount Socket
For Through Panel &
PCB Mount Socket
Pullover Wire Spring
RH1B SY2S-02F1 2
SY4S-51F1
2. Must use horseshoe clip when
mounting in DIN mount socket.
Replacement horseshoe clip
part number is Y778-011.
3. Two required per relay.
RH2B SY4S-02F1 2
RH3B SH3B-05F1 2
RH4B SH4B-02F1 2
Leaf Spring (side latch) RH1B, RH2B, RH3B, RH4B SFA-202 3SFA-302 3
Leaf Spring (top latch) RH1B, RH2B, RH3B, RH4B SFA-101 3SFA-301 3
AC Coil Ratings
Voltage
(V)
Rated Current (mA) ±15% at 20°C Coil Resistance (Ω)
±10% at 20°C
Operation Characteristics
(against rated values at 20ºC)
AC 50Hz AC 60Hz
SPDT DPDT 3PDT 4PDT SPDT DPDT 3PDT 4PDT SPDT DPDT 3PDT 4PDT Max. Continuous
Applied Voltage
Pickup
Voltage
Dropout
Voltage
6 170 240 330 387 150 200 280 330 330 9.4 6.4 5.4
110% 80%
maximum
30%
minimum
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
DC Coil Ratings
Voltage
(V)
Rated Current (mA) ±15% at 20°C Coil Resistance (Ω)
±10% at 20°C
Operation Characteristics
(against rated values at 20ºC)
SPDT DPDT 3PDT 4PDT SPDT DPDT 3PDT 4PDT Max. Continuous
Applied Voltage
Pickup
Voltage
Dropout
Voltage
6 128 150 240 250 47 40 25 24
110% 80%
maximum
10%
minimum
Standard coil volt-
ages are in BOLD.
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
Switches & Pilot Lights Signaling Lights Relays & Sockets Timers Contactors Terminal Blocks Circuit Breakers
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800-262-IDEC (4332) USA & Canada
RH
Relays & Sockets
Contact Ratings
Maximum Contact Capacity
Model Continuous
Current
Allowable Contact Power Rated Load
Resistive
Load
Inductive
Load
Voltage
(V)
Res.
Load
Ind.
Load
SPDT 10A 1540VA
300W
990VA
210W
110 AC 10A 7A
220 AC 7A 4.5A
30 DC 10A 7A
DPDT
3PDT
4PDT
10A 1650VA
300W
1100VA
225W
110 AC 10A 7.5A
220 AC 7.5A 5A
30 DC 10A 7.5A
Note: Inductive load for the rated load — cos ø = 0.3, L/R = 7 ms
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
UL Ratings
Voltage
Resistive General Use Horsepower Rating
RH1
RH2 RH3 RH4 RH1
RH2 RH3 RH4 RH1
RH2 RH3 RH4
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
CSA Ratings
Voltage Resistive General Use
Horse-
power
Rating
RH1 RH2 RH3 RH4 RH1 RH2 RH3 RH4 RH1, 2, 3
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
Socket Specifications
Sockets Terminal Electrical Rating Wire Size Torque
DIN Rail
Mount
Sockets
SH1B-05 (Coil) M3 screws
(contact) M3.5 screws with captive wire clamp 250V, 10A Maximum up to 2–#12AWG 5.5-9in•lbs
9-11.5in•lbs
SH2B-05
SH3B-05
SH4B-05
M3.5 screws with captive wire clamp 300V, 10A Maximum up to 2–#12AWG 9-11.5in•lbs
Finger-safe
DIN Rail
Mount
SH1B-05C (coil) M3 screws
(contact) M3.5 screws with captive wire clamp, fingersafe 250V, 10A Maximum up to 2–#12AWG 5.5-9in•lbs
9-11.5in•lbs
SH2B-05C
SH3B-05C
SH4B-05C
M3.5 screws with captive wire clamp, fingersafe 300V, 10A Maximum up to 2–#12AWG 9-11.5in•lbs
Through
Panel
Mount
Socket
SH1B-51
SH2B-51
SH3B-51
SH4B-51
Solder 300V, 10A
PCB Mount
Socket
SH1B-62 PCB mount 250V, 10A
SH2B-62
SH3B-62
SH4B-62
PCB mount 300V, 10A
Accessories
Item Appearance Use with Part No. Remarks
Aluminum
DIN Rail
(1 meter length)
All DIN rail sockets BNDN1000
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).
DIN Rail End
Stop DIN rail BNL5 9.1 mm wide.
Replacement
Hold-Down
Spring Anchor
DIN mount sockets and hold
down springs. Y778-011 For use on DIN rail mount socket when using pullover wire hold down
spring. 2 pieces included with each socket.
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Specifications
Contact Material Silver cadmium oxide
Contact Resistance 150mΩ maximum
Minimum Applicable Load 24V DC, 30 mA; 5V DC, 100 mA (reference value)
Operating Time 2
SPDT
DPDT 20ms maximum
3PDT
4PDT 25ms maximum
Release Time 2
SPDT
DPDT 20ms maximum
3PDT
4PDT 25ms maximum
Power Consumption
(approx.)
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
Insulation Resistance 100MΩ minimum (500V DC megger)
Dielectric Strength 3
SPDT
Between live and dead parts: 2,000V AC, 1 minute
Between contact and coil: 2,000V AC, 1 minute
Between contacts of the same pole: 1,000V AC, 1 minute
DPDT
3PDT
4PDT
Between live and dead parts: 2,000V AC, 1 minute
Between contact and coil: 2,000V AC, 1 minute
Between contacts of different poles: 2,000V AC, 1 minute
Between contacts of the same pole: 1,000V AC, 1 minute
Operating Frequency Electrical: 1,800 operations/hour maximum
Mechanical: 18,000 operations/hour maximum
Vibration Resistance Damage limits: 10 to 55Hz, amplitude 0.5 mm
Operating extremes: 10 to 55Hz, amplitude 0.5 mm
Shock Resistance
Damage limits: 1,000m/s2 (100G)
Operating extremes: 200m/s2 (20G - SPDT, DPDT)
100m/s2 (10G - 3PDT, 4PDT)
Mechanical Life 50,000,000 operations minimum
Electrical Life
DPDT 500,000 operations minimum (120V AC, 10A)
SPDT
3PDT
4PDT
200,000 operations minimum (120V AC, 10A)
Operating
Temperature 4
SPDT
DPDT
3PDT
4PDT
–25 to +70°C (no freezing)
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.
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Switches & Pilot Lights Signaling Lights Relays & Sockets Timers Contactors Terminal Blocks Circuit Breakers
777
800-262-IDEC (4332) USA & Canada
RH
Relays & Sockets
Characteristics (Reference Data)
Electrical Life Curves
AC Load DC Load
13579246810
50
20
10
100
500
1000
Load Current (A)
120V AC resistive
240V AC inductive 120V AC inductive 240V AC resistive
Life (× 10,000 operations)
(RH1)
13579246810
50
20
10
100
500
1000
Load Current (A)
30V DC resistive
100V DC inductive
30V DC inductive
100V DC resistive
Life (¥ 10,000 operations)
(RH1)
135792 46810
50
20
10
100
500
1000
Load Current (A)
120V AC resistive
240V AC inductive
120V AC inductive
240V AC resistive
Life (× 10,000 operations)
(RH2)
13579246810
50
20
10
100
500
1000
Load Current (A)
30V DC resistive
100V DC inductive
30V DC
inductive
100V DC resistive
Life (¥ 10,000 operations)
(RH2)
13579246810
50
20
10
100
500
1000
Load Current (A)
120V AC resistive
240V AC inductive
120V AC inductive
240V AC resistive
Life (× 10,000 operations)
(RH3/RH4)
13579246810
50
20
10
100
500
1000
Load Current (A)
30V DC resistive
100V DC inductive
30V DC inductive
100V DC resistive
Life (¥ 10,000 operations)
(RH3/RH4)
Maximum Switching Capacity
15
0.5
1.0
5.0
10.0
10 100 200 30050
0.1
Load Voltage (V)
Load Current (A)
DC inductive
DC resistive
AC inductive
AC resistive
(RH1)
15
0.5
1.0
5.0
10.0
10 100 200 30050
0.1
DC inductive
DC resistive
AC resistive
AC inductive
Load Voltage (V)
Load Current (A)
(RH2/RH3/RH4)
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Continuous Load Current vs. Operating Temperature Curve (Basic Type, With Check Button, and Top Bracket Mounting Type)
1
0
10
20
30
40
50
60
70
80
90
100
3579246810
DC Coil
AC Coil
Note: The rated voltage is
applied to the coil.
Load Current (A)
Operating Temperature (°C)
(RH1)
1
0
10
20
30
40
50
60
70
80
90
100
3579246810
DC Coil
AC Coil
Load Current (A)
Operating Temperature (°C)
Note: The rated voltage is
applied to the coil.
(RH2)
1
0
10
20
30
40
50
60
70
80
90
100
3579246810
AC/DC Coil
Load Current (A)
Operating Temperature (°C)
Note: The rated voltage is
applied to the coil.
(RH3/RH4)
Internal Connection (View from Bottom)
Basic Type
SPDT DPDT 3PDT 4PDT With Check Button
Front
Pushbutton
Contacts can be operated by pressing the
check button.
1
5
13 14
9
2
6
10
3
7
11
4
8
12
( – ) ( + )
With Indicator (-L type)
SPDT 3PDT 4PDT DPDT
Below
100V
AC/DC
1
5
13 14
9
( – )( + )
1
5
9
4
8
2
6
1210
13 14
( – )( + )
1
5
13 14
9
2
6
10
3
7
11
4
8
12
( – )( + )
Below
24V AC/
DC
1
5
13 14
9
4
8
12
( – )( + )
When the relay is energized,
the indicator goes on.
•Relay coils less than 100V
DC do not contain a protec-
tion diode (except DPDT).
•Relay coils below 100V
use LED indicator, coils
above 100V use neon lamp
indicator.
•LED color of DPDT model
is green
100V
AC/DC
and over
1
5
13 14
9
( – )( + )
1
5
9
4
8
2
6
1210
13 14
( – ) ( + ) ( – ) ( + )
1
5
13 14
9
2
6
10
3
7
11
4
8
12
24V AC/
DC and
over
1
5
13 14
9
4
8
12
( – )( + )
With Diode (-D type)
SPDT DPDT 3PDT 4PDT
1
5
13 14
9
( – ) ( + )
1
5
13 14
9
4
8
12
( – ) ( + )
1
5
13 14
9
2
6
10
4
8
12
( – ) ( + )
1
5
13 14
9
2
6
10
3
7
11
4
8
12
( – ) ( + )
Contains a diode to absorb the back emf
generated when the coil is de-energized. The
release time is slightly longer. Available for DC
coil only.
•Diode Characteristics
Reverse withstand voltage: 1,000V
Forward current: 1A
L—4 [mac
Switches & Pilot Lights Signaling Lights Relays & Sockets Timers Contactors Terminal Blocks Circuit Breakers
779
800-262-IDEC (4332) USA & Canada
RH
Relays & Sockets
With Indicator LED & Diode (-LD type)
SPDT 3PDT 4PDT DPDT
Below
100V DC
1
5
13 14
9
( – )( + )
Below
24V AC/
DC
1
5
13 14
9
4
8
12
( – )( + )
Contains an LED indicator and
a surge absorber, and has the
same height as the basic type.
LED color of DPDT model is
green.
100V DC
and over
1
5
13 14
9
( – )( + )
24V AC/
DC and
over
1
5
13 14
9
4
8
12
( – )( + )
Dimensions (mm)
RH1B-U/RH1B-UL/RH1B-UD/RH1B-ULD RH2B-U/RH2B-UL/RH2B-UD/RH2B-ULD RH3B-U/RH3B-UL/RH3B-UD/RH3B-ULD
13
1
5
9
14
4.7
0.5
6.4
5.4 14
27.5
SH1B-05: 61.5 (63.5) max., SH1B-51: 39.6 (41.6) max.
35.6 max.
Total length from panel surface including relay socket
Dimensions in the ( )
include a hold-down spring.
ø2.6 hole
1 4
5 8
9 12
13 14
6.4 21
27.5
4.7
0.5
SH2B-05: 61.5 (63.5) max., SH2B-51: 39.6 (41.6) max.
35.6 max.
Total length from panel surface including relay socket
Dimensions in the ( )
include a hold-down spring.
ø2.6 hole
13 14
124
8
6
5
910 11
4.70.5
27.5
6.4 31
SH3B-05: 61.5 (63.5) max., SH3B-51: 39.6 (41.6) max.
35.6 max.
Total length from panel surface including relay socket
Dimensions in the ( )
include a hold-down spring.
ø2.6 hole
RH4B-U/RH4B-UL/RH4B-UD/RH4B-ULD RH1B-UT RH2B-UT
1234
7 865
9 10 11 12
13 14
6.4 41
4.70.5
27.5
SH4B-05: 61.5 (63.5) max., SH4B-51: 39.6 (41.6) max.
35.6 max.
Total length from panel surface including relay socket
Dimensions in the ( )
include a hold-down spring.
ø2.6 hole
ø2.6 hole
13
1
5
9
14
3.5
14.5 35.6 max. 6.4
5.42
38
43.2
27.5
6.6
5.9
4.7
0.5
4.7
ø2.6 hole
1 4
5 8
9 12
13 14
3.5
21.5
2
35.6 max. 6.4
38
43.2
27.5
4.7
5.9
7.25
0.54.7
10
RH3B-UT RH4B-UT
ø2.6 hole
13 14
124
865
9 10 12
21.5
31.5 35.6 max. 6.4
3.5
38
43.2
28
1010
4.7
2
4.7
5.9
7.25
0.5
ø2.6 hole
101010
4.7
2
35.6 max. 6.4
42 max.
13
12
14
1234
7 865
9 10 11
28
41.5
28
3.5
38
44
4.7
5.9
7.25
0.5
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Dimensions con’t (mm)
RH1V2-U/RH1V2-UD RH2V2-U/RH2V2-UL/RH2V2-UD
13
1
5
9
14
35.6 max. 4.6
0.5
27.5
14
3-ø2.4 holes
2-ø2 holes
4.4
7.15
6.6
12.5 4.7
0.5
1.5
2
8-ø2.4 holes
10
14.2
7.8
7.25
13.15 4.7
14
13
1 4
5 8
912
35.6 max. 4.6
27.5
5
20.5
0.5
2
0.5
21
RH3V2-U/RH3V2-UL/RH3V2-D RH4V2-U/RH4V2-UL/RH4V2-UD
13 14
124
865
9 10 11
35.6 max. 4.6
310.5
0.5 2
27.5
11-ø2.4 holes 10 10
7.8
7.25
13.15 4.7
1234
7 865
9 10 11 12
13 14
20.5
35.6 max. 4.6
0.5 41
27.5
14-ø2.4 holes
7.8
7.25
13.15 4.7
10
30
Standard DIN Rail Mount Sockets
SH1B-05 SH2B-05
5
1
9
14 13
Terminal Arrangement
17
4.2
672.5
20
16
8
7.9 max.
25
47
18
14.5
4.4 max.
5.5 min.
M3 Terminal
Screw
M3.5 Terminal
Screw
31.5
DIN Rail
(BNDN)
(For terminals 1, 5, and 9)
ø3.6 min.
16
2-ø4.2 Mounting Holes
(or M4 Tapped Holes)
5.9 max.
4 max.
4.8 min.
(For terminals 13 and 14)
ø3.2 min.
(Top View)
22
4.2
672.5
8
26
25
47
18
14.5
26
30
M3.5 Terminal
Screw
31.5
DIN Rail
(BNDN)
8
4
5
1
12
14
9
13
Terminal Arrangement
2-ø4.2 Mounting Holes
(or M4 Tapped Holes)
7.9 max.
4.4 max. 5.5 min.
ø3.6 min.
(Top View)
SH3B-05 SH4B-05
36
25
32
4.2
672.5
47
18
14.5
8
ø3.6 min.
7.9 max.
4.4 max. 5.5 min.
36
40
M3.5 Terminal
Screw
31.5
DIN Rail
(BNDN)
5
1
12
14
10
13
8
4
6
2
9
Terminal Arrangement
2-ø4.2 Mounting Holes
(or M4 Tapped Holes)
(Top View)
46
25
42
4.2
672.5
47
18
14.5
8
46
50
M3.5 Terminal
Screw
31.5
DIN Rail
(BNDN)
5
1
9
13
10
14
8
4
7
3
6
2
12 11
Terminal Arrangement
2-ø4.2 Mounting Holes
(or M4 Tapped Holes)
ø3.6 min.
7.9 max.
4.4 max. 5.5 min.
(Top View)
H; mm dawn ww- ‘ W m ,5 w 2. [mac
Switches & Pilot Lights Signaling Lights Relays & Sockets Timers Contactors Terminal Blocks Circuit Breakers
781
800-262-IDEC (4332) USA & Canada
RH
Relays & Sockets
Dimensions con’t (mm)
Finger-safe DIN Rail Mount Sockets
SH1B-05C SH2B-05C
ø5
16
25
1.7
29.5
18.7
48
17
7
69
20
4.2
16
M3.5 Terminal
Screw
M3 Terminal
Screw
36
2-ø4.2 Mounting Holes
(or M4 Tapped Holes)
5
1
9
14 13
Terminal Arrangement
DIN Rail
(BNDN)
(Top View)
Ring terminals
cannot be used.
ø5
1.7 69
4.2
22
7
30
26
M3.5 Terminal
Screw
8
4
5
1
12
14
9
13
Terminal Arrangement
25
29.5
18.7
49
DIN Rail
(BNDN)
36
26
2-ø4.2 Mounting Holes
(or M4 Tapped Holes)
(Top View)
Ring terminals
cannot be used.
SH3B-05C SH4B-05C
1.7
32
69
4.2
7
40
36
ø5
M3.5 Terminal
Screw
5
1
12
14
10
13
8
4
6
2
9
Terminal Arrangement
36
2-ø4.2 Mounting Holes
(or M4 Tapped Holes)
25
29.5
18.7
49
36
DIN Rail
(BNDN)
(Top View)
Ring terminals
cannot be used.
ø5
25
4.2
1.7 69
46
42
7
18.7
29.5
50
49
5
1
9
13
10
14
8
4
7
3
6
2
12 11
46
When using
BAA/BAP: 33
DIN Rail
(BAA/BAP) Terminal Arrangement
2-ø4.2 Mounting Holes
(or M4 Tapped Holes)
Ring type crimping
terminals cannot be used.
(Top View)
Through Panel Mount Socket
SH1B-51 SH2B-51
SH3B-51 SH4B-51
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Switches & Pilot LightsSignaling LightsRelays & SocketsTimersContactorsTerminal BlocksCircuit Breakers
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Dimensions con’t (mm)
PCB Mount Sockets
SH1B-62 SH2B-62
3
11
15
18
31
0.3
25.4
12.2
1.5
2
13
1
5
9
14
Terminal Arrangement 18 min.
2-ø2 holes
3-ø2.4 holes
(Tolerance ±0.1)
* 36 min. when using
hold-down springs
31 min.*
4.7
4.4
6.8
5.95
6.95
11.85
(Bottom View) 3
11
15
0.3
25.4
21.2
29
2
13
1
5
9
4
12
8
14
Terminal Arrangement
* 34 min. when using
hold-down springs
21.5 min.
8-ø2.4 holes
(Tolerance 0.1)
29 min.*
4.7
2.85
5.65
12.5
15.5
10
6.6
(Bottom View)
SH3B-62 SH4B-62
3
11
15
31
0.3
25.4
30.2
36
2
13
1
5
9
2
10
6
14
4
12
8
Terminal Arrangement
* 36 min. when using
hold-down springs
6.6
36 min.
11-ø2.4 holes
(Tolerance 0.1)
31 min.*
6.65
12.5
21.3
10 10
7.35
4.7
(Bottom View) 3
11
15
31
0.3
25.4
39.2
45
2
13
1
5
9
3
11
7
14
4
12
8
2
10
6
Terminal Arrangement 45 min.
14-ø2.4 holes
(Tolerance 0.1)
* 36 min. when using
hold-down springs
31 min.* 4.7
31.3
6.85
6.6
6.65
12.5
10 10 10
(Bottom View)
4 \ T Dose
Switches & Pilot Lights Signaling Lights Relays & Sockets Timers Contactors Terminal Blocks Circuit Breakers
817
800-262-IDEC (4332) USA & Canada
Operating Instructions
Relays & Sockets
Operating Instructions
Driving Circuit for Relays
1. To ensure correct relay operation, apply rated voltage to the relay coil.
2. Input voltage for the DC coil:
A complete DC voltage is best for the coil power to make sure of stable relay
operation. When using a power supply containing a ripple voltage, suppress
the ripple factor within 5%. When power is supplied through a rectification
circuit, the relay operating characteristics, such as pickup voltage and dropout
voltage, depend on the ripple factor. Connect a smoothing capacitor for better
operating characteristics as shown below.
+
R
Smoothing
Capacitor
Relay
Pulsation
Emin Emax Emean
DC
Ripple Factor (%
100%
Emax –
Emin
Emax = Maximum of pulsating current
Emin = Minimum of pulsating current
Emean = DC mean value
Emean
3. Leakage current while relay is off:
When driving an element at the same time as the relay operation, special
consideration is needed for the circuit design. As shown in the incorrect
circuit below, leakage current (Io) flows through the relay coil while the relay
is off. Leakage current causes coil release failure or adversely affects the
vibration resistance and shock resistance. Design a circuit as shown in the
correct example.
Incorrect Correct
R
Io
TE
R
4. Surge suppression for transistor driving circuits:
When the relay coil is turned off, a high-voltage pulse is generated, causing a
transistor to deteriorate and sometimes to break. Be sure to connect a diode
to suppress the back electromotive force. Then, the coil release time becomes
slightly longer. To shorten the coil release time, connect a Zener diode
between the collector and emitter of the transistor. Select a Zener diode with
a Zener voltage slightly higher than the power voltage.
R
suppressing diode
Relay
+
Protection for Relay Contacts
1. The contact ratings show maximum values. Make sure that these values are
not exceeded. When an inrush current flows through the load, the contact
may become welded. If this is the case, connect a contact protection circuit,
such as a current limiting resistor.
2. Contact protection circuit:
When switching an inductive load, arcing causes carbides to form on the
contacts, resulting in increased contact resistance. In consideration of contact
reliability, contact life, and noise suppression, use of a surge absorbing circuit
is recommended. Note that the release time of the load becomes slightly
longer. Check the operation using the actual load. Incorrect use of a contact
protection circuit will adversely affect switching characteristics. Four typical
examples of contact protection circuits are shown in the following table:
RC
Power CR Ind. Load
This protection circuit can be used when the load
impedance is smaller than the RC impedance in an
AC load power circuit.
•R: Resistor of approximately the same resistance
value as the load
•C:0.1 to 1 µF
This protection circuit can be used for both AC and
DC load power circuits.
R: Resistor of approximately the same resistance
value as the load
C: 0.1 to 1 µF
Diode
+
D
Power Ind. Load
This protection circuit can be used for DC load power
circuits. Use a diode with the following ratings.
Reverse withstand voltage: Power voltage of the
load circuit x 10
Forward current: More than the load current
Varistor
Varistor
Power Ind. Load
This protection circuit can be used for both AC and
DC load power circuits.
For a best result, when using a power voltage of 24
to 48V AC/DC, connect a varistor across the load.
When using a power voltage of 100 to 240V AC/DC,
connect a varistor across the contacts.
3. Do not use a contact protection circuit as shown below:
Power
CLoad
This protection circuit is very effective in arc suppression when
opening the contacts. But, the capacitor is charged while the
contacts are opened. When the contacts are closed, the capacitor
is discharged through the contacts, increasing the possibility of
contact welding.
CLoad
Power
This protection circuit is very effective in arc suppression when
opening the contacts. But, when the contacts are closed, a current
flows to charge the capacitor, causing contact welding.
Generally, switching a DC inductive load is more difficult than switching a DC
resistive load. Using an appropriate arc suppressor, however, will improve the
switching characteristics of a DC inductive load.
Soldering
1. When soldering the relay terminals, use a soldering iron of 30 to 60W, and
quickly complete soldering (within approximately 3 seconds).
2. Use a non-corrosive rosin flux.
Operating Instructions
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Operating Instructions con’t
Other Precautions
1. General notice:
To maintain the initial characteristics, do not drop or shock the relay.
The relay cover cannot be removed from the base during normal operation. To
maintain the initial characteristics, do not remove the relay cover.
Use the relay in environments free from condensation, dust, sulfur dioxide
(SO2), and hydrogen sulfide (H2S).
Make sure that the coil voltage does not exceed applicable coil voltage range.
2. UL and CSA ratings may differ from product rated values determined by IDEC.
3. Do not use relays in the vicinity of strong magnetic field, as this may affect
relay operation.
Safety Precautions
• Turn off the power to the relay before starting installation, removal, wiring,
maintenance, and inspection of the relays. Failure to turn power off may
cause electrical shock or fire hazard.
• Observe specifications and rated values, otherwise electrical shock or fire
hazard may be caused.
• Use wires of the proper size to meet voltage and current requirements. Tight-
en the terminal screws on the relay socket to the proper tightening torque.
• Surge absorbing elements on AC relays with RC or DC relays with diode are
provided to absorb the back electromotive force generated by the coil. When
the relay is subject to an excessive external surge voltage, the surge absorb-
ing element may be damaged. Add another surge absorbing provision to the
relay to prevent damage.
Precautions for the RU Relays
• Before operating the latching lever of the RU relay, turn off the power to
the RU relay. After checking the circuit, return the latching lever to the origi-
nal position.
• Do not use the latching lever as a switch. The durability of the latching lever
is a minimum of 100 operations.
• When using DC loads on 4PDT relays, apply a positive voltage to terminals of
neighboring poles and a negative voltage to the other terminals of neighbor-
ing poles to prevent the possibility of short circuits.
• DC relays with a diode have a polarity in the coil terminals. Apply the DC volt-
age to the correct terminals.

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