SIEMENS
7/85
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 mounting onto contactor
1)
,
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
•
Overload and phase failure protection
•
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)
With the appropriate terminal supports
(see "Accessories", page 7/88)
, the
3RU2 overload relays for mounting on contactors can also be installed as
stand-alone units.
2)
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.
3)
Maximum protection by fuse only for overload relays, type of
coordination "2". For fuse values in connection with contactors,
see Configuration Manual
.
4)
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
2)
Current setting
value of the
inverse-time
delayed overload
release
Short-circuit
protection with fuse,
type of coordination
"2", operational
class gG
3)
SD
Screw terminals
SD
Spring-type terminals
(on auxiliary current side)
Article No.
Price
per PU
Article No.
Price
per PU
Class
kW
A
A
d
d
Size S2
S2
10
7.5
11 ... 16
40
5
3RU2136-4AB0
5
3RU2136-4AD0
10
7.5
14 ... 20
50
5
3RU2136-4BB0
5
3RU2136-4BD0
10
11
18 ... 25
63
5
3RU2136-4DB0
5
3RU2136-4DD0
10
15
22 ... 32
80
5
3RU2136-4EB0
5
3RU2136-4ED0
10
18.5
28 ... 40
80
5
3RU2136-4FB0
5
3RU2136-4FD0
10
22
36 ... 45
100
}
3RU2136-4GB0
}
3RU2136-4GD0
10
22
40 ... 50
100
}
3RU2136-4HB0
}
3RU2136-4HD0
10
30
47 ... 57
100
}
3RU2136-4QB0
}
3RU2136-4QD0
10
30
54 ... 65
125
}
3RU2136-4JB0
}
3RU2136-4JD0
10A
37
62 ... 73
160
}
3RU2136-4KB0
}
3RU2136-4KD0
10A
37
70 ... 80
160
}
3RU2136-4RB0
}
3RU2136-4RD0
Size S3
S3
10
18.5
28 ... 40
80
1
3RU2146-4FB0
5
3RU2146-4FD0
10
22
36 ... 50
125
1
3RU2146-4HB0
5
3RU2146-4HD0
10
30
45 ... 63
125
1
3RU2146-4JB0
1
3RU2146-4JD0
10
37
57 ... 75
160
1
3RU2146-4KB0
1
3RU2146-4KD0
10
45
70 ... 90
160
1
3RU2146-4LB0
1
3RU2146-4LD0
10
45
80 ... 100
4)
200
1
3RU2146-4MB0
1
3RU2146-4MD0
3RU2136-4.D0
3RU2136-4.B0
3RU2146-4.D0
3RU2146-4.B0
© Siemens AG 2016