Siemens 3RT1044-3BB40 65A 3-Pole Contactor, 24V DC

Siemens 3RT1044-3BB40 65A 3-pole power contactor with 24V DC coil.

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ManufacturerSiemens

Part number3RT1044-3BB40

Type Power Contactor

Manufacturer Siemens

Part Number 3RT1044-3BB40

Poles 3

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AC-3 Rated 65A 30kW Switching Capacity 24V DC Coil 3-Pole Configuration Size S3 Spring-Type Terminals

Product description

The Siemens 3RT1044-3BB40 is a 3-pole power contactor rated for AC-3 duty at 65A and 30kW at 400V. This unit features a 24V DC coil and utilizes spring-type terminals for connection. It is part of the SIRIUS 3RT1 series and belongs to Size S3.

This contactor is suitable for applications requiring DC control, such as in specific automation systems, safety circuits, or where a 24V DC control voltage is mandated. The spring terminals provide a secure, vibration-resistant connection.

As a veteran-owned surplus distributor, Stanlo Automation offers the Siemens 3RT1044-3BB40. We specialize in providing reliable and often hard-to-find industrial automation components to support your maintenance and operational needs.

Technical specifications

Type	Power Contactor
Manufacturer	Siemens
Part Number	3RT1044-3BB40
Poles	3
AC-3 Rating	65 A
Power	30 kW @ 400V
Coil Voltage	24V DC
Size	S3
Terminal Type	Spring-type

Common applications

Motor Control

DC Control Systems

Industrial Automation

Safety Circuits

Control Panels

Manufacturing

Compatible systems

Compatible with Siemens SIRIUS 3RT1 accessories

Also known as

Siemens 3RT1044-3BB40 Contactor SIRIUS 3RT1044-3BB40 Siemens 24V DC Spring Terminal Contactor

Replaces / compatible with

This product is phased out and has been succeeded by the SIRIUS 3RT2 series, with the preferred successor type being 3RT2037-3KB40.

Technical note

Expert tip

The 24V DC coil on the 3RT1044-3BB40 allows for safe operation in low-voltage control circuits, and the spring terminals provide a durable connection that resists vibration.

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Frequently asked questions

What is the coil voltage and terminal type for the Siemens 3RT1044-3BB40?

The Siemens 3RT1044-3BB40 power contactor operates with a 24V DC coil and is equipped with spring-type terminals for electrical connections.