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Siemens 3RT1026-1AP04 SIRIUS Power Contactor

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ManufacturerSiemens

Part number3RT1026-1AP04

AC-3 rating 25 A

Coil Voltage 230 V AC, 50 Hz

Poles 3

Auxiliary Contacts 2 NO + 2 NC

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Veteran-owned

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AC-3 switching 3-pole main contacts 2 NO + 2 NC auxiliary contacts Size S0 frame Screw terminals 50 Hz coil

Product description

The Siemens 3RT1026-1AP04 is a 3-pole power contactor rated for AC-3 switching at 25A and 11kW (400V). It has a 230V AC coil for 50 Hz operation and includes 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts. This Size S0 contactor uses screw terminals and is a phased-out product, with the SIRIUS 3RT2 series as its successor.

This contactor is ideal for motor control and switching applications in industrial automation, machine building, and control panels where auxiliary contacts are needed for interlocking, signaling, or monitoring circuits.

Stanlo Automation, a veteran-owned surplus parts supplier, offers components like the Siemens 3RT1026-1AP04. We help industrial clients source critical and obsolete parts to maintain operational efficiency and minimize downtime.

Technical specifications

AC-3 rating	25 A
Coil Voltage	230 V AC, 50 Hz
Poles	3
Auxiliary Contacts	2 NO + 2 NC
Size	S0
Terminals	Screw

Common applications

Motor control

Industrial automation

Control panels

Machine building

Signaling

Interlocking

Also known as

SIRIUS 3RT1026-1AP04 Siemens 25A 2 NO 2 NC Contactor

Replaces / compatible with

This is a phased-out product. The preferred successor is the SIRIUS 3RT2026-1AP04.

Technical note

Expert tip

This Size S0, 3-pole power contactor (25A, 11kW AC-3) includes a 230V AC coil (50 Hz) and 2 NO/2 NC auxiliary contacts, with screw terminals for connection.

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Frequently asked questions

What type of auxiliary contacts does the Siemens 3RT1026-1AP04 have?

The Siemens 3RT1026-1AP04 features 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts, in addition to its 3 main power poles, for expanded control logic.