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Siemens 3RT1024-1KB40 SIRIUS 3-Pole Power Contactor

Siemens 3RT1024-1KB40 SIRIUS 3-pole power contactor.

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ManufacturerSiemens

Part number3RT1024-1KB40

Type Power Contactor

Manufacturer Siemens

Series SIRIUS 3RT1

Poles 3

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3-pole configuration AC-3 rated 24V DC coil Size S0 Integrated varistor Screw terminals

Product description

The Siemens 3RT1024-1KB40 is a 3-pole power contactor from the SIRIUS series, designed for reliable motor control applications. It features AC-3 ratings of 12A and 5.5kW at 400V, with a 24V DC coil voltage. This Size S0 contactor includes screw terminals and an integrated varistor for coil protection.

This contactor is suitable for a wide range of industrial applications, including motor starting, load shedding, and general power switching in manufacturing, automation, and building management systems. Its robust design ensures dependable operation in demanding environments.

Source your industrial automation needs from Stanlo Automation, a veteran-owned distributor committed to quality and customer service. We offer competitive pricing, fast shipping, and expert support to ensure you find the right parts for your application.

Technical specifications

Type	Power Contactor
Manufacturer	Siemens
Series	SIRIUS 3RT1
Poles	3
Current Rating (AC-3)	12 A
Power Rating (400V)	5.5 kW
Coil Voltage	24 V DC
Size	S0
Termination	Screw terminal
Varistor	Included

Common applications

Motor control

Industrial automation

Control panels

Machine building

HVAC systems

Compatible systems

Control systems requiring 24V DC coil contactors

Also known as

Siemens 3RT1024-1KB40 Contactor SIRIUS 3RT1024-1KB40 Siemens Power Contactor

Replaces / compatible with

This product is a phased-out item. The preferred successor is the Siemens SIRIUS 3RT2024-1KB40.

Technical note

Expert tip

While this unit is phased out, its successor, the 3RT2024-1KB40, maintains similar form factor and operational characteristics for easier integration.

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Frequently asked questions

What are the key specifications of the Siemens 3RT1024-1KB40 contactor?

The Siemens 3RT1024-1KB40 is a 3-pole power contactor rated for AC-3 12A and 5.5kW at 400V. It features a 24V DC coil, Size S0, screw terminals, and includes a varistor for surge suppression.