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Siemens 3RT1446-1AC20 AC-1 Contactor - 140A, 24V AC Coil

Siemens 3RT1446-1AC20 3-pole AC-1 power contactor.

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ManufacturerSiemens

Part number3RT1446-1AC20

Type AC-1 Contactor

Current 140A

Voltage 400V

Coil Voltage 24V AC

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AC-1 rated 140A operational current 3-pole configuration Size S3 Screw terminals

Product description

The Siemens 3RT1446-1AC20 is a 3-pole AC-1 power contactor with a rated operational current of 140A at 400V. It features a 24V AC coil and screw terminals, belonging to the SIRIUS 3RT1 series in Size S3. This part is phased out, with the SIRIUS 3RT2 series being its successor.

This contactor is suitable for switching non-inductive loads, such as resistive heaters or lighting circuits, in industrial environments. Common applications include motor control, power distribution, and control panels across various industries like manufacturing, HVAC, and material handling.

As a veteran-owned surplus parts distributor, Stanlo Automation offers hard-to-find and phased-out components like the 3RT1446-1AC20. We ensure quality and availability, providing a reliable source for your automation needs.

Technical specifications

Type	AC-1 Contactor
Current	140A
Voltage	400V
Coil Voltage	24V AC
Poles	3
Size	S3
Terminals	Screw

Common applications

Industrial control panels

Motor starting

Load switching

Power distribution

HVAC systems

Manufacturing equipment

Compatible systems

SIRIUS 3RT1 accessories Industrial control systems

Also known as

SIRIUS 3RT1446-1AC20 Siemens 3-pole contactor 140 Amp AC-1 Contactor

Replaces / compatible with

This is a phased-out product. The preferred successor is the Siemens 3RT2446-1AC20.

Technical note

Expert tip

This Size S3 contactor is designed for AC-1 (non-inductive) loads and requires appropriate wiring for its 24V AC coil.

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Frequently asked questions

What is the successor to the Siemens 3RT1446-1AC20?

The Siemens 3RT1446-1AC20 is a phased-out product. Its preferred successor is the Siemens 3RT2446-1AC20, part of the SIRIUS 3RT2 series, offering updated technology and availability.