SIEMENS
7/99
Siemens IC 10 · 2017
* You can order this quantity or a multiple thereof.
Illustrations are approximate.
Overload Relays
SIRIUS 3RB3 Electronic Overload Relays
3RB30, 3RB31 for standard applications
7
3RB31 electronic overload relays, CLASS 5E, 10E, 20E or 30E (adjustable)
Features and technical specifications:
•
Connection methods
- Sizes S00 and S0:
Main and auxiliary circuit: Either screw or spring-type terminals
- Sizes S2 and S3:
Main circuit: Screw terminals with box terminal or as
straight-through transformer,
Auxiliary circuit: Either screw or spring-type terminals
•
Overload protection, phase failure protection and asymmetry
protection
•
Internal ground-fault detection (activatable)
•
Internal power supply
•
Auxiliary contacts 1 NO + 1 NC
•
Manual and automatic RESET
•
Electrical remote RESET integrated
•
Switch position indicator
•
TEST function and self-monitoring
•
Sealable covers (optional accessory)
PU (UNIT, SET, M) = 1
PS*
= 1 unit
PG
= 41G
1)
Guide value for 4-pole standard motors at 50 Hz 400 V AC. The actual
starting and rated data of the motor to be protected must be considered
when selecting the units.
2)
Maximum protection by fuse only for overload relays,
type of coordination "2".
For fuse values in connection with contactors,
see Configuration Manual
.
3)
With the appropriate terminal supports
(see "Accessories", page 7/100),
these overload relays can also be installed as stand-alone units.
Size
contactor
Rated power for
three-phase motors,
rated value
1)
Current setting value
of the inverse-time
delayed overload
release
Short-circuit protection
with fuse,
type of coordination
"2",
operational class gG
2)
SD
Screw terminals
SD
Spring-type
terminals
Article No.
Price
per PU
Article No.
Price
per PU
kW
A
A
d
d
Size S00
S00
Devices for mounting onto contactor
3)
0.04 ... 0.09
0.1 … 0.4
4
}
3RB3113-4RB0
2
3RB3113-4RE0
0.12 ... 0.37
0.32 … 1.25
6
}
3RB3113-4NB0
2
3RB3113-4NE0
0.55 ... 1.5
1 … 4
20
}
3RB3113-4PB0
2
3RB3113-4PE0
1.1 ... 5.5
3 … 12
25
}
3RB3113-4SB0
2
3RB3113-4SE0
2.2 ... 7.5
4 ... 16
25
}
3RB3113-4TB0
2
3RB3113-4TE0
Size S0
S0
Devices for mounting onto contactor
3)
0.04 ... 0.09
0.1 … 0.4
4
}
3RB3123-4RB0
2
3RB3123-4RE0
0.12 ... 0.37
0.32 … 1.25
6
}
3RB3123-4NB0
2
3RB3123-4NE0
0.55 ... 1.5
1 … 4
20
}
3RB3123-4PB0
2
3RB3123-4PE0
1.1 ... 5.5
3 … 12
25
}
3RB3123-4SB0
2
3RB3123-4SE0
3 ... 11
6 ... 25
50
}
3RB3123-4QB0
2
3RB3123-4QE0
5.5 ... 18.5
10 ... 40
50
}
3RB3123-4VB0
2
3RB3123-4VE0
Size S2
S2
Devices with screw terminals (main current side) and
for mounting onto contactor
3)
7.5 … 22
12.5 … 50
250
}
3RB3133-4UB0
}
3RB3133-4UD0
11 ... 37
20 ... 80
250
}
3RB3133-4WB0
}
3RB3133-4WD0
Devices with straight-through transformer for stand-alone
installation
7.5 … 22
12.5 … 50
250
}
3RB3133-4UW1
}
3RB3133-4UX1
11 ... 37
20 ... 80
250
}
3RB3133-4WW1
}
3RB3133-4WX1
Size S3
S3
Devices with screw terminals (main current side) and
for mounting onto contactor
3)
7.5 … 22
12.5 … 50
200
X
3RB3143-4UB0
X
3RB3143-4UD0
18.5 … 55
32 ... 115
315
X
3RB3143-4XB0
X
3RB3143-4XD0
Devices with straight-through transformer for stand-alone
installation
7.5 … 22
12.5 … 50
200
X
3RB3143-4UW1
X
3RB3143-4UX1
18.5 … 55
32 ... 115
315
X
3RB3143-4XW1
X
3RB3143-4XX1
3RB3123-4VB0
3RB3113-4TB0
3RB3133-4.B0
3RB3133-4.W1
3RB3143-4.B0
3RB3143-4.W1
© Siemens AG 2016