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Siemens 3RT1017-2BB42 SIRIUS Power Contactor - 12A, 1 NC, 24V DC

Siemens 3RT1017-2BB42 3-pole Power Contactor

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ManufacturerSiemens

Part number3RT1017-2BB42

Poles 3

Current Rating (AC-3) 12A

Voltage Rating (AC-3) 400V

Coil Voltage 24V DC

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AC-3 rating of 12A 5.5 kW motor power at 400V 24V DC coil 1 NC auxiliary contact Size S00 Spring-type terminals

Product description

The Siemens 3RT1017-2BB42 is a 3-pole power contactor designed for AC-3 applications, rated at 12A and 5.5kW at 400V. It features one normally closed (NC) auxiliary contact and is equipped with a 24V DC coil. This Size S00 contactor uses spring-type terminals for its connections.

This contactor is engineered for reliable motor control and general industrial switching tasks. Its durable construction ensures consistent performance in demanding environments, making it suitable for various automation and control applications.

Stanlo Automation, a veteran-owned distributor of surplus industrial parts, is your reliable source for quality components. We offer efficient solutions to meet your automation and MRO needs.

Technical specifications

Poles	3
Current Rating (AC-3)	12A
Voltage Rating (AC-3)	400V
Coil Voltage	24V DC
Auxiliary Contacts	1 NC
Frame Size	S00
Terminal Type	Spring

Common applications

Motor control

Industrial automation

Control panels

Machine tools

Pump control

Compatible systems

General industrial control systems

Also known as

3RT10172BB42 Siemens Contactor 3RT1017-2BB42 SIRIUS 3RT1017-2BB42

Replaces / compatible with

This is a phased-out product. The preferred successor is the SIRIUS 3RT2017-2BB42.

Technical note

Expert tip

The NC auxiliary contact on this S00 contactor is useful for safety interlocks or signaling applications.

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Frequently asked questions

What is the difference between 3RT1017-2BB41 and 3RT1017-2BB42?

The primary difference lies in their auxiliary contacts: the 3RT1017-2BB41 has one normally open (NO) contact, while the 3RT1017-2BB42 has one normally closed (NC) contact. Both are 12A, 3-pole, Size S00 contactors with a 24V DC coil.