SIEMENS
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Siemens IC 10 · 2017
Contactor Relays
SIRIUS 3RH2 contactor relays, 4- and 8-pole
5
Contactor relays
Type
3RH21
3RH22
3RH24
Size
S00
General data
Dimensions (W x H x D)
• Basic units
-
Screw terminals
mm
45 x 58 x 73
--
90 x 58 x 73
-
Spring-type terminals
mm
45 x 70 x 73
--
• Basic unit with mounted auxiliary switch block
-
Screw terminals
mm
45 x 58 x 117
--
-
Spring-type terminals
mm
45 x 70 x 121
--
• Basic unit with mounted function module or
solid-state time-delay auxiliary switch block
-
Screw terminals
mm
45 x 58 x 147
--
-
Spring-type terminals
mm
45 x 70 x 147
--
Mechanical endurance
• Basic units
Operating cycles
30 million
5 million
• Basic unit with mounted auxiliary switch block
Operating cycles
10 million
5 million
• Solid-state compatible auxiliary switch block
Operating cycles
5 million
Rated insulation voltage
U
i
(pollution degree 3)
V
690
Rated impulse withstand voltage
U
imp
kV
6
Protective separation
between coil and contacts in the basic unit,
acc. to IEC 60947-1, Appendix N
V
400
Permissible ambient temperature
• During operation
°C
-25 ... +60
• During storage
°C
-55 ... +80
Degree of protection
acc. to IEC 60529
• On front
IP20 (screw terminals and spring-type terminals)
• Connecting terminal
IP20 (screw terminals and spring-type terminals)
Touch protection
acc. to IEC 60529
Finger-safe (screw terminals and spring-type terminals)
Shock resistance
• Rectangular pulse
-
AC operation
g
/ms
7.3/5 and 4.7/10
-
DC operation
g
/ms
10/5 and 5/10
• Sine pulse
-
AC operation
g
/ms
11.4/5 and 7.3/10
-
DC operation
g
/ms
15/5 and 8/10
Short-circuit protection
• Short-circuit test
-
With fuse links of operational class gG:
DIAZED, type 5SB; NEOZED, type 5SE
With short-circuit current
I
k
= 1 kA acc. to IEC 60947-5-1
A
10
-
With miniature circuit breaker with C characteristic
with short-circuit current
I
k
= 400 A acc. to IEC 60947-5-1
A
6
W
H
D
© Siemens AG 2016