SIEMENS
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Siemens IC 10 · 2017
Contactors for Special Applications
SIRIUS 3RT25 contactors, 4-pole, 2 NO + 2 NC
4
■
Overview
Standards
IEC 60947-1, EN 60947-1,
IEC 60947-4-1, EN 60947-4-1,
IEC 60947-5-1, EN 60947-5-1 (auxiliary switches)
The contactors are suitable for use in any climate.
They are finger-safe according to IEC 60529.
The accessories for the 3-pole SIRIUS 3RT2 contactors can also
be used for the 4-pole versions,
see from page 3/75 onwards
.
With sizes S0 and S2, two auxiliary contacts 1 NO + 1 NC
are included in the basic version.
Mountable auxiliary contacts
Size S00 to S2
Four additional auxiliary contacts, including no more than
two NC.
For a general description of sizes S00 to S2 of
3RT2 contactors,
see from page 3/15 onwards
.
■
Application
The contactors are suitable:
•
For changing the polarity of hoisting gear motors
•
For switching two separate loads
Note:
Single device for pole reversal; not suitable for reversing duty.
3RT25 contactors are not suitable for switching a load between
two current sources.
■
Technical specifications
More information
Technical specifications,
see
FAQs,
Manuals,
Type
3RT2516 ... 3RT2518
3RT2526
3RT2535, 3RT2536
Size
S00
S0
S2
General data
Dimensions (W x H x D)
See 3RT231.,
page 4/14
See 3RT232.,
page 4/14
See 3RT233., page 4/14
Permissible mounting position
The contactors are designed for operation on
a vertical mounting surface.
Upright mounting position
Special version required
Mechanical endurance
Operat-
ing
cycles
30 million
10 million
Electrical endurance at
I
e
/AC-1
Operat-
ing
cycles
Approx. 0.5 million
Rated insulation voltage
U
i
(Pollution degree 3)
V
690
Permissible ambient temperature
• During operation
°C
-25 ... +60
• During storage
°C
-55 ... +80
Degree of protection
acc. to IEC 60529
• On front
IP20 (screw terminals and spring-type terminals)
• Connecting terminal
IP20 (screw terminals and spring-type
terminals)
IP00
(for higher degree of protection,
use additional terminal covers)
Touch protection
acc. to IEC 60529
Finger-safe (screw terminals and spring-
type terminals)
Finger-safe for vertical touching
from the front
Short-circuit protection
Main circuit
Fuse links, operational class gG:
LV HRC, type 3NA; DIAZED, type 5SB; NEOZED, type 5SE
acc. to IEC 60947-4-1/EN 60947-4-1
• Type of coordination "1"
A
35
63
125
160
• Type of coordination "2"
A
20
35
63
80
• Weld-free
A
10
16
--
--
360°
22,5°
22,5°
NSB0_00478c
NSB0_00477a
© Siemens AG 2016