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Siemens 3RT1025-1BB44 SIRIUS 3RT Power Contactor

Siemens 3RT1025-1BB44 SIRIUS 3RT power contactor, 17A, 24V DC coil, 2 NO/2 NC.

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ManufacturerSiemens

Part number3RT1025-1BB44

AC-3 Rating 17 A

Power 7.5 kW / 400 V

Poles 3

Coil Voltage 24 V DC

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AC-3 rating of 17A 7.5kW power capacity 24V DC coil 2 NO + 2 NC auxiliary contacts Screw terminals Size S0

Product description

The Siemens 3RT1025-1BB44 is a power contactor designed for AC-3 applications, rated at 17A and 7.5kW at 400V. This 3-pole contactor, size S0, features a 24V DC coil and is equipped with 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts. It utilizes screw terminals for reliable electrical connections.

This contactor is suitable for a wide range of industrial control tasks, including motor control, switching of lighting loads, and general power distribution. The generous number of auxiliary contacts makes it versatile for complex control circuits, interlocks, and status monitoring in automation systems.

Stanlo Automation, a veteran-owned surplus parts distributor, is your reliable source for the Siemens 3RT1025-1BB44. We specialize in providing access to obsolete and hard-to-find industrial automation components, helping you maintain your equipment and minimize downtime.

Technical specifications

AC-3 Rating	17 A
Power	7.5 kW / 400 V
Poles	3
Coil Voltage	24 V DC
Auxiliary Contacts	2 NO + 2 NC
Size	S0
Terminal Type	Screw
Status	Phased-out

Common applications

Motor control

Industrial automation

Control panels

Power distribution

HVAC systems

Lighting control

Compatible systems

Control circuits Motor starters Automation panels

Also known as

Siemens 3RT1025-1BB44 SIRIUS 3RT1025 3RT1025 Contactor

Replaces / compatible with

This is a phased-out product. The preferred successor type is Siemens SIRIUS 3RT2025-1BB44.

Technical note

Expert tip

The 2 NO and 2 NC auxiliary contacts on the 3RT1025-1BB44 offer significant flexibility for implementing complex control sequences and safety interlocks within your automation system.

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Frequently asked questions

How many auxiliary contacts are included with the Siemens 3RT1025-1BB44 power contactor?

The Siemens 3RT1025-1BB44 power contactor comes with 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts. It has an AC-3 rating of 17A at 400V and a 24V DC coil.