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Siemens 3RT1024-1BB40 SIRIUS DC Contactor

Siemens 3RT1024-1BB40 SIRIUS 3-pole DC contactor.

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ManufacturerSiemens

Part number3RT1024-1BB40

Poles 3

AC-3 Current 12A

AC-3 Power 5.5kW @ 400V

Coil Voltage 24V DC

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3-pole configuration 12A AC-3 rating 5.5kW power capacity 24V DC coil Screw terminals DIN rail mountable

Product description

The Siemens 3RT1024-1BB40 is a 3-pole SIRIUS power contactor designed for DC control applications. It is rated for AC-3 applications at 12A and 5.5 kW at 400V, featuring a 24V DC coil voltage. This Size S0 contactor comes with screw terminals and is suitable for standard 35mm DIN rail mounting.

This contactor is ideal for motor control and other switching applications within DC control circuits, commonly found in automation systems, renewable energy installations, and specialized industrial equipment. It offers reliable performance and ease of integration.

As a veteran-owned industrial automation parts distributor, Stanlo Automation offers the Siemens 3RT1024-1BB40. We are committed to providing high-quality components and expert support to keep your operations running efficiently.

Technical specifications

Poles	3
AC-3 Current	12A
AC-3 Power	5.5kW @ 400V
Coil Voltage	24V DC
Size	S0
Termination	Screw

Common applications

DC motor control

Industrial automation

Control panels

Renewable energy

Battery systems

Pump control

Compatible systems

Compatible with Siemens SIRIUS 3RH19 auxiliary switch blocks and 3RU11/3RB20 overload relays.

Also known as

Siemens SIRIUS Contactor 3RT1024 Contactor 12A 3-Pole DC Contactor

Replaces / compatible with

This product is phased out. The preferred successor is the SIRIUS 3RT2024-1BB40.

Technical note

Expert tip

The 24V DC coil requires a stable DC power source. Ensure the power supply is adequately rated and filtered to prevent nuisance tripping or coil damage.

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Frequently asked questions

What is the coil voltage for the Siemens 3RT1024-1BB40 contactor?

The Siemens 3RT1024-1BB40 is designed with a 24V DC coil voltage. This makes it suitable for applications where a low-voltage DC control signal is used for switching higher power circuits.