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Siemens 3RT1025-1BB40 3-Pole SIRIUS Power Contactor

Siemens 3RT1025-1BB40 3-pole power contactor

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ManufacturerSiemens

Part number3RT1025-1BB40

Manufacturer Siemens

Part Number 3RT1025-1BB40

Type Power Contactor

Poles 3

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3-pole configuration AC-3 rating 7.5 kW power 24V DC coil Size S0 Screw terminals

Product description

The Siemens 3RT1025-1BB40 is a 3-pole power contactor from the SIRIUS line, rated for AC-3 applications with a 17A current and 7.5 kW power at 400V. This model is equipped with a 24V DC coil, offering efficient and reliable operation in DC control circuits. It is a Size S0 device with screw terminals for straightforward installation.

This contactor is widely applied in industrial settings for motor control, automation tasks, and power switching where a DC control voltage is specified. It is found in control panels for manufacturing equipment, material handling systems, and processing machinery.

Stanlo Automation, a veteran-owned surplus parts distributor, is your go-to source for the Siemens 3RT1025-1BB40. We pride ourselves on offering dependable industrial components at competitive prices, backed by knowledgeable service to support your automation needs and minimize operational disruptions.

Technical specifications

Manufacturer	Siemens
Part Number	3RT1025-1BB40
Type	Power Contactor
Poles	3
Rated Current AC-3	17 A
Rated Power AC-3	7.5 kW @ 400 V
Coil Voltage	24 V DC
Size	S0
Terminal Type	Screw

Common applications

Motor control

DC control circuits

Industrial automation

Manufacturing equipment

Material handling

Processing machinery

Compatible systems

Suitable for integration into automation systems utilizing 24V DC control logic and power distribution.

Also known as

Siemens 3RT1025-1BB40, SIRIUS 3RT1025, Siemens DC Contactor, 24V DC Power Contactor

Replaces / compatible with

This product is phased out. The preferred successor is the Siemens SIRIUS 3RT2025-1BB40.

Technical note

Expert tip

The 24V DC coil in the 3RT1025-1BB40 offers lower power consumption compared to AC coils and is often preferred for applications with battery backup or direct PLC output control.

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Frequently asked questions

What is the coil voltage for the Siemens 3RT1025-1BB40 contactor?

The Siemens 3RT1025-1BB40 is equipped with a 24V DC coil. This DC coil is ideal for control systems that utilize DC power for signaling and switching operations, such as those found in many PLC-driven applications.