SIEMENS
7/87
Siemens IC 10 · 2017
* You can order this quantity or a multiple thereof.
Illustrations are approximate.
Overload Relays
SIRIUS 3RU2 Thermal Overload Relays
3RU2 for standard applications
7
3RU21 thermal overload relays for stand-alone installation, sizes S2 and S3, CLASS 10 or 10A
Features and technical specifications:
•
Connection methods
- Main circuit: Screw terminals with box terminal
- Auxiliary circuit: Either screw or spring-type terminals
•
Auxiliary contacts 1 NO + 1 NC
•
Manual and automatic RESET
•
Switch position indicator
•
TEST function
•
STOP button
•
Sealable covers (optional accessory)
PU (UNIT, SET, M) = 1
PS*
= 1 unit
PG
= 41F
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)
For overload relays > 100 A,
see 3RB2 electronic overload relays,
page 7/102 onwards
.
Size
contac-
tor
Trip class
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
CLASS
kW
A
A
d
d
Size S2
S2
10
15
22 ... 32
80
5
3RU2136-4EB1
5
3RU2136-4ED1
10
18.5
28 ... 40
80
5
3RU2136-4FB1
5
3RU2136-4FD1
10
22
36 ... 45
100
}
3RU2136-4GB1
}
3RU2136-4GD1
10
22
40 ... 50
100
}
3RU2136-4HB1
}
3RU2136-4HD1
10
30
47 ... 57
100
}
3RU2136-4QB1
}
3RU2136-4QD1
10
30
54 ... 65
125
}
3RU2136-4JB1
}
3RU2136-4JD1
10A
37
62 ... 73
160
}
3RU2136-4KB1
}
3RU2136-4KD1
10A
37
70 ... 80
160
}
3RU2136-4RB1
}
3RU2136-4RD1
Size S3
S3
10
30
45 ... 63
125
1
3RU2146-4JB1
5
3RU2146-4JD1
10
37
57 ... 75
160
1
3RU2146-4KB1
5
3RU2146-4KD1
10
45
70 ... 90
160
1
3RU2146-4LB1
5
3RU2146-4LD1
10
45
80 ... 100
3)
200
1
3RU2146-4MB1
X
3RU2146-4MD1
3RU2136-..D1
3RU2136-..B1
3RU2146-..D1
3RU2146-..B1
© Siemens AG 2016