SIEMENS
7/98
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
3RB30 electronic overload relays, CLASS 20E
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 power supply
•
Auxiliary contacts 1 NO + 1 NC
•
Manual and automatic RESET
•
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
}
3RB3016-2RB0
2
3RB3016-2RE0
0.12 ... 0.37
0.32 … 1.25
6
}
3RB3016-2NB0
2
3RB3016-2NE0
0.55 ... 1.5
1 … 4
20
}
3RB3016-2PB0
2
3RB3016-2PE0
1.1 ... 5.5
3 … 12
25
}
3RB3016-2SB0
2
3RB3016-2SE0
2.2 ... 7.5
4 ... 16
25
}
3RB3016-2TB0
2
3RB3016-2TE0
Size S0
S0
Devices for mounting onto contactor
3)
0.04 ... 0.09
0.1 … 0.4
4
}
3RB3026-2RB0
2
3RB3026-2RE0
0.12 ... 0.37
0.32 … 1.25
6
}
3RB3026-2NB0
2
3RB3026-2NE0
0.55 ... 1.5
1 … 4
20
}
3RB3026-2PB0
2
3RB3026-2PE0
1.1 ... 5.5
3 … 12
25
}
3RB3026-2SB0
2
3RB3026-2SE0
3 ... 11
6 ... 25
50
}
3RB3026-2QB0
2
3RB3026-2QE0
5.5 ... 18.5
10 ... 40
50
}
3RB3026-2VB0
2
3RB3026-2VE0
Size S2
S2
Devices with screw terminals (main current side) and
for mounting onto contactor
3)
7.5 … 22
12.5 … 50
250
}
3RB3036-2UB0
}
3RB3036-2UD0
11 ... 37
20 ... 80
250
}
3RB3036-2WB0
}
3RB3036-2WD0
Devices with straight-through transformer for stand-alone
installation
7.5 … 22
12.5 … 50
250
}
3RB3036-2UW1
}
3RB3036-2UX1
11 ... 37
20 ... 80
250
}
3RB3036-2WW1
}
3RB3036-2WX1
Size S3
S3
Devices with screw terminals (main current side) and
for mounting onto contactor
3)
7.5 … 22
12.5 … 50
200
X
3RB3046-2UB0
X
3RB3046-2UD0
18.5 … 55
32 ... 115
315
X
3RB3046-2XB0
X
3RB3046-2XD0
Devices with straight-through transformer for stand-alone
installation
7.5 … 22
12.5 … 50
200
X
3RB3046-2UW1
X
3RB3046-2UX1
18.5 … 55
32 ... 115
315
X
3RB3046-2XW1
X
3RB3046-2XX1
3RB3016-2.B0
3RB3026-2.B0
3RB3036-2.B0
3RB3036-2.W1
3RB3046-2.B0
3RB3046-2.W1
© Siemens AG 2016