3RU11, 3RB10, and 3RB12 overload relays
SIRIUS System Manual
GWA 4NEB 430 0999-02b
4-49
Type
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 c 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)
V
300
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
A
6
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
V
300