3RU11, 3RB10, and 3RB12 overload relays
SIRIUS System Manual
GWA 4NEB 430 0999-02b
4-49
Ty p e 3RB12 46 3RB12 53 3RB12 57 3RB12 62
Width 70 mm 120 mm 145 mm 230 mm
Auxiliary circuit
Auxiliary contact elements: number x (variant)
2 x (1 NO contact + 1 NC contact)
Assignment of the auxiliary contact elements
1 NO contact for the "tripped by overload and/or thermistor" signal
1 NC contact for tripping the contactor
1 NO contact for the "tripped by ground fault" signal
1 NC contact for tripping the contactor
Or
1
)
1 NO contact for the "tripped by overload and/or thermistor and/or
ground fault" signal
1 NC contact for switching off the contactor
1 NO contact for the "tripped by ground fault" signal
1 NC contact for tripping the contactor
Rated insulation voltage
U
i
(pollution degree 3)
V300
Rated impulse strength
U
imp
kV 4
Contact rating of the auxiliary contact elements
NC contact with alternating current AC-
14/AC-15
Rated operational current
I
e
at
U
e
:
• 24 V A 6
•120 V A 6
•125 V A
2
)
•230 V A 3
•400 V A 1.5
•600V A
2
)
•690V A
2
)
NO contact with alternating current
AC-14/AC-15
Rated operational current
I
e
at
U
e
:
• 24 V A 6
•120 V A 6
•125 V A
2
)
•230 V A 3
•400 V A 1.5
•600 V A
2
)
•690 V A
2
)
NC contact, NO contact with direct cur-
rent DC-13
Rated operational current
I
e
at
U
e
:
•24 V A 2
•60 V A 0.55
•110 V A 0.25
• 125 V A 0.25
• 220 V A 0.14
Conventional free air thermal current
I
th
A6
Contact reliability
(suitable for PLC; 17 V, 5 mA)
2
)
Short-circuit protection
With fuse Performance class gL/gG A 6
flink A 10
With miniature circuit breaker (C characteristic) A 1.6
3
)
Safe isolation between auxiliary conducting paths
in acc. with DIN VDE 0106 Part 101
V300