3RT2017-2KB41

Siemens 3RT2017-2KB41 DC Electromagnetic Contactor 24VDC 12A/5.5kW 1NO
Siemens 3RT2017-2KB41 DC Electromagnetic Contactor 24VDC 12A/5.5kW 1NO

Siemens SIRIUS 3RT2017-2KB41 features a 24V DC coil, one set of normally open (NO) auxiliary contacts, a mechanical life of 30 million cycles, spring terminals, and support for upright mounting.

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Siemens 3RT2017-2KB41 DC Electromagnetic Contactor 24VDC 12A/5.5kW 1NO
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The S00 three-pole contactor, 3RT2017-2KB41, shares the same 24V DC coil as the 2KB42. The difference lies in its auxiliary contacts, which use one set of NO (normally open) instantaneous contacts. The main circuit AC-3 rating is also 12A, 400V/5.5kW. It boasts a mechanical operating life of up to 30 million cycles, an insulation voltage of 690V, a pollution degree of 3, and supports vertical mounting. It is suitable as a basic contactor for motor starting or general load on/off control.

Core Product Advantages and Features
24V DC coil, built-in suppression diode
The coil operating range is 0.7~1.25 times the rated voltage, and the diode can suppress the induced surge at the moment of power failure, protecting the control output stage.
1 set of NO auxiliary contacts
Normally open instantaneous contacts are convenient for connecting indicator lights, timers, or as feedback signals for operating status.
30 million mechanical cycles
The S00 frame features a high-durability contact design, maintaining stable operation even with frequent switching over extended periods.
Spring terminals, support for upright installation
Screwless spring clip terminals speed up wiring and can be installed upright to accommodate narrow panel configurations.
project Specification
Rated operating current (AC-3, 400V) 12 A
Rated operating power (AC-3, 400V) 5.5 kW
Main contact type 3NO (3-pole normally open)
Coil voltage/type 24 V DC, operating range 0.7~1.25 times rated value
Auxiliary contact 1 NO instantaneous contact
Special features Built-in suppression diode, supports upright installation
Terminal blocks Spring-loaded terminals (main circuit/auxiliary/control circuit)
External dimensions (height x width x depth) 70 x 45 x 73 mm
weight Approximately 0.32 kg
Enclosure protection level IP20 (Front panel finger touch protection)
Insulation voltage/contamination level 690 V / Pollution level 3
Mechanical operating life 30 million times
Frame size S00

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