*Blade type not TUV tested or CE marked.
Side flange model mounts directly to panel with no socket required.
Sockets
RelaysStandard DIN Rail Mount Finger-safe DIN Rail MountThrough Panel Mount
RR2P
RR3PA
RR1BA
RR2BA
RR3B
SR2P-05
SR2P-06
SR3P-05
SR3P-06
SR3B-05—SR3B-51
SR2P-05CSR2P-51
SR3P-05CSR3P-51
800-262-IDEC (4332) • USA & Canada
Ordering Information
When ordering, specify the Part No. and coil voltage code:
(example) RR3B-U AC120V
Part No. Coil Voltage Code
All DIN rail mount sockets shown above can be
mounted using DIN rail BNDN1000.
783
RR
Hold Down Springs & Clips
AppearanceDescriptionRelay
Pullover Wire
Switches & Pilot LightsSignaling LightsRelays & SocketsTimersContactorsTerminal BlocksCircuit Breakers
Spring
For DIN
Mount Socket
RR2PSR2B-02F1
RR3PASR3B-02F1
RR1BA, RR2BA,
RR3B
SR3B-02F1SR3B-02F1
Relays & Sockets
For Through Panel &
PCB Mount Socket
SR3P-01F1
Leaf Spring
(side latch)
RR2P, RR3PASFA-203–
Accessories
ItemAppearanceUse withPart No.Remarks
Aluminum
DIN Rail
(1 meter length)
DIN Rail End
Stop
Replacement
Hold-Down
Spring Anchor
All DIN rail socketsBNDN1000
DIN railBNL59.1 mm wide.
Horseshoe clip for sockets
SR3B-05, SR2P-06, SR3P-06
Chair clip for sockets
SR2P-05(C), SR3P-05(C)
Y778-011
Y703-102
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.
784
www.IDEC.com
Relays & Sockets
RR
Specifications
Contact MaterialSilver
Contact Resistance
Minimum Applicable Load1V DC, 10 mA
Operating Time
Release Time
Power Consumption (approx.)
Insulation Resistance100 MΩ minimum (500V DC megger)
Operating Temperature
Operating Humidity5 to 85% RH (no condensation)
Weight (approx.) (Standard type)RR2P: 90g, RR3PA: 96g, RR1BA/RR2BA/RR3B: 82g
1
2
2
Pin Terminal
Blade Terminal
3
30 mΩ maximum
25 ms maximum
25 ms maximum
AC: 3 VA (50 Hz), 2.5 VA (60 Hz)
DC: 1.5W
Between live and dead parts: 1500V AC, 1 minute
Between contact and coil: 1500V AC, 1 minute
Between contacts of different poles:1500V AC, 1 minute
Between contacts of the same pole: 1000V AC, 1 minute
Between live and dead parts: 2000V AC, 1 minute
Between contact and coil: 2000V AC, 1 minute
Between contacts of different poles:2000V AC, 1 minute
Between contacts of the same pole: 1000V AC, 1 minute
Electrical: 1800 operations/h maximum
Mechanical: 18,000 operations/h maximum
Damage limits: 10 to 55 Hz, amplitude 0.5 mm
Operating extremes: 10 to 55 Hz, amplitude 0.5 mm
2
Damage limits: 1000 m/s
(100g)
Operating extremes: 100 m/s2 (10G)
–25 to +40°C (no freezing)
Switches & Pilot LightsSignaling LightsRelays & SocketsTimersContactorsTerminal BlocksCircuit Breakers
1. Measured using 5V DC, 1A voltage drop method
2. Measured at the rated voltage (at 20°C), excluding contact
bouncing
3. For use under different temperature conditions, refer to
Continuous Load Current vs. Operating Temperature Curve.
Coil Ratings
Rated Voltage (V)
AC
(50/60 Hz)
DC
Rated Current (mA) ±15% (at 20°C)
50 Hz60 Hz
Coil Resistance (Ω)
±10% (at 20°C)
64904204.9
1224521018
2412110579
11027231,680
1202420.52,100
24012.110.58,330
624025
12120100
2460400
48301,600
110138,460
Operating Characteristics (values at 20°C)
Maximum Continuous
Applied Voltage
Pickup VoltageDropout Voltage
110%80% maximum30% minimum
110%80% maximum10% minimum
800-262-IDEC (4332) • USA & Canada
785
RR
Relays & Sockets
Contact Ratings
Continuous
Current
Switches & Pilot LightsSignaling LightsRelays & SocketsTimersContactorsTerminal BlocksCircuit Breakers
10A
Note: Inductive load for the rated load — cos ø = 0.3, L/R = 7 ms
Total length from panel surface including relay socket
SR3B-05: 73 (76) max., SR3B-51: 56 (60) max.
0.5
47.5 max.
7.3
123
5
789
AB
36
Dimensions in the ( )
include a hold-down spring.
64
36
16.0
SR3P-05: 84.5 (87.5) max., SR3P-511: 63 (68) max.
9.9
63.5
47.5 max.
73.5
55.5 max.
7.3
16.1
0.5
3.0 ¥ ø2.0 oblong hole
11.1 11.1
4.7
13
123
5
789
AB
36
6
7
5
4
3
2
8
9
10
11
1
35.6
Dimensions in the ( )
include a hold-down spring.
2-ø4.5 Mounting Holes
64
36
35.6
63.5
Standard DIN Rail Mount Sockets
SR2P-05SR2P-06
8
M3.5 Terminal
Screw
33
ø4.2 hole
29
SR3P-05SR3P-06
8
M3.5 Terminal
Screw
ø4.2 hole
34
DIN Rail
35
(BNDN)
2-ø4.2 Mounting Holes
(or M4 Tapped Holes)
ø25
16.5
20
28.5
35
33
ø27
16.5
20
28.5
4.4 max.
7.9 max.
DIN Rail
(BNDN)
4.4 max.
7.9 max.
29
2-ø4.2 Mounting Hole
(or M4 Tapped Holes)
34
5 min.
ø3.6 min.
5 min.
ø3.6 min.
Terminal Arrangement
4
5
6
3
2
7
1
8
(
)
Top View
Terminal Arrangement
6
5
7
4
8
9
3
1110
2
1
(
)
Top View
8
M3.5 Terminal
Screw
ø25
ø4.2 hole
33
M3.5 Terminal
8
Screw
ø27
ø4.2 hole
33
25.5
22
DIN Rail
(BNDN)
2-ø4.2 Mounting Holes
(or M4 Tapped Holes)
33
4.9 max.
18
28.5
7.9 max.
DIN Rail
(BNDN)
2-ø4.2 Mounting Holes
(or M4 Tapped Holes)
Terminal Arrangement
5 min.
ø3.6 min.
Terminal Arrangement
6543
2187
(
)
Top View
87 65
4
33
4.9 max.
18
7.9 max.
22
5 min.
9
11
10
(
Top View
123
)
ø3.6 min.
788
www.IDEC.com
Standard DIN Rail Mount Sockets
76
2
36
2.258
36
42
2.258
SR3B-05
Relays & Sockets
RR
Switches & Pilot LightsSignaling LightsRelays & SocketsTimersContactorsTerminal BlocksCircuit Breakers
8
M3.5 Terminal
Screw
4.2
37
43
31.5
56
14.5
25
DIN Rail
(BNDN)
2-ø4.2 Mounting Holes
(or M4 Tapped Holes)
37
4.4 max.5.5 min.
7.9 max.
Terminal Arrangement
ø3.6 min.
6
3
9B8
(
Top View
4
5
2
1
A
7
)
Finger-safe DIN Rail Mount Sockets
SR2P-05CSR3P-05C
DIN Rail
7
ø5
ø4.2 hole
29
36.5
30
21.5
(BNDN)
2-ø4.2 Mounting Holes
(or M4 Tapped Holes)
29
Ring type crimping
terminals cannot be used.
Terminal Arrangement
5
6
7
8
(
Top View
4
3
2
1
)
Through Panel Mount Socket
SR2P-51SR3P-51
7
5
ø
ø4.2 hole
34
36.5
21.5
30
DIN Rail
(BNDN)
2-ø4.2 Mounting Holes
(or M4 Tapped Holes)
34
Ring type crimping
terminals cannot be used.
Terminal Arrangement
6
5
7
4
8
9
3
1110
2
1
(
)
Top View
4.2
38
50
SR3B-51
38
51.5
22
35
6
ø29
342.510 11
7.5
35
43
3
3.5
Panel
Surfarface
2.5
11 max.
0.3
6.5
32
Terminal Arrangement
3
2
(Bottom View)
Terminal Arrangement
1 2 3
4 5 6
7 8 9
AB
(Bottom View)
5
4
6
7
8
1
2-ø3.5 Mounting Holes
(or M3 Tapped Holes)
ø30
2-ø4.2 Mounting Holes
35.5*
(M4 Tapped Holes)
22
6.75
11.5 min.
*
When two or more sockets are
mounted side by side:
L = 38 (N – 1) + 35.5
N: No. of sockets mounted
32.5
38
43
(Tolerance 0.3)
4.2
38
50
6
Panel
Surfarface
ø29
342.510 11
2.5
Terminal Arrangement
567
4
3
10
2
11
1
(Bottom View)
8
9
2-ø3.5 Mounting Holes
(or M3 Tapped Holes)
ø30
38
800-262-IDEC (4332) • USA & Canada
789
Relays & Sockets
Pulsation
)¥
Back emf
Operating Instructions
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.
Smoothing
Capacitor
+
Relay
R
–
Emin Emax Emean
Ripple Factor (%
Emax = Maximum of pulsating current
Emin = Minimum of pulsating current
Emean = DC mean value
Emax –
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
TE
Io
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.
suppressing diode
+
Relay
R
–
Emin
DC
100%
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:
This protection circuit can be used when the load
impedance is smaller than the RC impedance in an
Power
CR
RC
+
Power
Diode
–
Power
Varistor
D
Varistor
Ind. Load
Ind. Load
3. Do not use a contact protection circuit as shown below:
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
Load
is discharged through the contacts, increasing the possibility of
contact welding.
Power
C
AC load power circuit.
Ind. Load
•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
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
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.
Switches & Pilot LightsSignaling LightsRelays & SocketsTimersContactorsTerminal BlocksCircuit Breakers
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.
800-262-IDEC (4332) • USA & Canada
Power
C
This protection circuit is very effective in arc suppression when
opening the contacts. But, when the contacts are closed, a current
Load
flows to charge the capacitor, causing contact welding.
817
Operating Instructions
Other Precautions
Relays & Sockets
Operating Instructions con’t
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
Switches & Pilot LightsSignaling LightsRelays & SocketsTimersContactorsTerminal BlocksCircuit Breakers
maintain the initial characteristics, do not remove the relay cover.
Use the relay in environments free from condensation, dust, sulfur dioxide
(SO
), and hydrogen sulfide (H2S).
2
Make sure that the coil voltage does not exceed applicable coil voltage range.
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. Tighten 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 absorbing element may be damaged. Add another surge absorbing provision to the
relay to prevent damage.
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.
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 original 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 neighboring poles to prevent the possibility of short circuits.
• DC relays with a diode have a polarity in the coil terminals. Apply the DC voltage to the correct terminals.
818
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