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Siemens 3RT1044-1AP04 SIRIUS Power Contactor

Siemens 3RT1044-1AP04 3-Pole Power Contactor

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ManufacturerSiemens

Part number3RT1044-1AP04

Type Power Contactor

Manufacturer Siemens

Part Number 3RT1044-1AP04

AC-3 Rating 65 A

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AC-3 rating 65A 30 kW @ 400V 230V AC coil 3-pole configuration 2 NO + 2 NC auxiliary contacts Size S3

Product description

The Siemens 3RT1044-1AP04 is a 3-pole power contactor from the SIRIUS 3RT1 series, rated for AC-3 duty at 65A with a 30 kW power capacity at 400V. This unit features a 230V AC coil (50 Hz) and 2 Normally Open + 2 Normally Closed auxiliary contacts, with screw terminals for main circuit connections.

This contactor is designed for controlling motors and power circuits in demanding industrial environments. It is widely used in machine building, plant engineering, and automation systems where robust and reliable switching is critical for operational continuity.

Stanlo Automation, a veteran-owned distributor of surplus industrial automation components, can supply the Siemens 3RT1044-1AP04. Ensure your operations remain efficient by sourcing this essential part from our extensive inventory.

Technical specifications

Type	Power Contactor
Manufacturer	Siemens
Part Number	3RT1044-1AP04
AC-3 Rating	65 A
Power Rating	30 kW @ 400 V
Coil Voltage	230 V AC, 50 Hz
Poles	3
Auxiliary Contacts	2 NO + 2 NC
Size	S3
Terminal Type	Screw terminal
Series	SIRIUS 3RT1

Common applications

Motor control

Industrial automation

Machine building

Plant engineering

Control panels

Power circuits

Compatible systems

N/A (Component level)

Also known as

SIRIUS 3RT1044-1AP04 Siemens Contactor 3RT1044-1AP04 65A Contactor Siemens

Replaces / compatible with

This is a phased-out product. The preferred successor is the Siemens SIRIUS 3RT2037-1AP04.

Technical note

Expert tip

The 230V AC coil is a standard voltage, but confirm frequency compatibility (50 Hz specified) for your region if operating outside standard European grids.

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Frequently asked questions

What are the primary applications for the Siemens 3RT1044-1AP04 power contactor?

The Siemens 3RT1044-1AP04 is primarily used for controlling motors and switching power circuits in industrial automation and machine building. Its 65A AC-3 rating and 230V AC coil make it suitable for various medium-duty applications.