SIEMENS
4/24
Siemens IC 10 · 2017
* You can order this quantity or a multiple thereof.
Illustrations are approximate.
Contactors for Special Applications
SIRIUS 3RT25 contactors, 4-pole, 2 NO + 2 NC
4
DC operation
Single device for pole reversal (not suitable for reversing duty)
PU (UNIT, SET, M)
= 1
PS*
= 1 unit
PG
= 41B
1)
Values for NO contact/NC contact. The NC contact can switch no more
than 4 kW.
2)
Value in brackets for NC contact (the deviating value for the NC contact
applies only for devices with DC operation).
Other voltages
according to page 4/49
on request.
For accessories and spare parts,
see page 3/75 onwards
.
3RT251.-1B . 40
3RT251.-2B.40
3RT252.-1B.40
3RT252.-2B.40
Rated data
Auxiliary contacts
Rated control
supply voltage
U
s
SD
Screw terminals
SD
Spring-type
terminals
AC-2/AC-3,
t
u
: Up to 60 °C
AC-1,
t
u
: 40/60 °C
Ident. No.
Version
Opera-
tional
current
I
e
Ratings of three-
phase motors
at 50 Hz and
Operational
current
I
e
up to
Article No.
Price
per PU
Article No.
Price
per PU
At 400 V
400 V
690
A
kW
A
NO
NC
V DC
d
d
For screw fixing and snap-on mounting
onto TH 35 standard mounting rail
Size S00
9
4
18 / 16
--
--
--
24
}
3RT2516-1BB40
2
3RT2516-2BB40
220
5
3RT2516-1BM40
5
3RT2516-2BM40
12/9
1)
5.5/4
1)
22 / 20
--
--
--
24
2
3RT2517-1BB40
2
3RT2517-2BB40
220
5
3RT2517-1BM40
5
3RT2517-2BM40
16/9
1)
7.5/4
1)
22 / 20
--
--
--
24
2
3RT2518-1BB40
2
3RT2518-2BB40
220
5
3RT2518-1BM40
5
3RT2518-2BM40
Size S0
Auxiliary contacts 1 NO + 1 NC, Ident. No.
11
25 (20)
2)
11 (7.5)
2)
40 / 35
11
1
1
24
2
3RT2526-1BB40
2
3RT2526-2BB40
220
5
3RT2526-1BM40
5
3RT2526-2BM40
A1(+)
A2(–)
2
1
4
3
R2
R1
R4
R3
A1(+)
A2(–)
2
1
4
3
R2
R1
R4
R3
22
21
14
13
© Siemens AG 2016