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Siemens 3RT1025-1AG24 SIRIUS 3-Pole Contactor with Auxiliaries

Siemens 3RT1025-1AG24 SIRIUS 3-pole power contactor with aux contacts.

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ManufacturerSiemens

Part number3RT1025-1AG24

Type Power Contactor

Manufacturer Siemens

Series SIRIUS 3RT1

Poles 3

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3-pole configuration AC-3 rated 17A 2 NO + 2 NC auxiliary contacts 110V AC coil Size S0 Screw terminals

Product description

The Siemens 3RT1025-1AG24 is a 3-pole power contactor from the SIRIUS series, featuring integrated auxiliary contacts for enhanced control capabilities. This unit is rated for AC-3 17A and 7.5kW at 400V, with a 110V AC coil. It includes 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts, a Size S0 frame, and screw terminals.

This contactor is ideal for applications requiring both power switching and additional signaling or interlock functions. It is commonly used in motor control, automation systems, and control panels where auxiliary contacts are beneficial for complex logic.

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Technical specifications

Type	Power Contactor
Manufacturer	Siemens
Series	SIRIUS 3RT1
Poles	3
Current Rating (AC-3)	17 A
Power Rating (400V)	7.5 kW
Coil Voltage	110 V AC
Auxiliary Contacts	2 NO + 2 NC
Size	S0
Termination	Screw terminal

Common applications

Motor control

Automation systems

Control panels

Machine building

Electrical interlocks

Compatible systems

Control systems requiring 110V AC coil actuation for Size S0 Siemens SIRIUS contactors with 2 NO/2 NC auxiliary contacts

Also known as

Siemens 3RT1025-1AG24 Contactor SIRIUS 3RT1025-1AG24 Siemens Contactor with Aux

Replaces / compatible with

This product is a phased-out item. The preferred successor is the Siemens SIRIUS 3RT2025-1AG24.

Technical note

Expert tip

The integrated auxiliary contacts on the 3RT1025-1AG24 simplify wiring and panel space compared to adding separate auxiliary contact blocks.

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Frequently asked questions

Does the Siemens 3RT1025-1AG24 contactor come with auxiliary contacts?

Yes, the Siemens 3RT1025-1AG24 is equipped with integrated auxiliary contacts, specifically 2 normally open (NO) and 2 normally closed (NC) contacts, in addition to its main power poles.