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Siemens 3RT1056-6XB46-0LA2 185A Traction Contactor (24V DC)

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ManufacturerSiemens

Part number3RT1056-6XB46-0LA2

Part Number 3RT1056-6XB46-0LA2

Manufacturer Siemens

Series SIRIUS 3RT

Poles 3

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185A AC-3/AC-3e rating 90 kW @ 400V 24V DC coil PLC input compatible 3-pole configuration 2 NO + 2 NC auxiliary contacts Extended conditions for railroad (IEC 60077)

Product description

The Siemens 3RT1056-6XB46-0LA2 is a specialized 3-pole SIRIUS power contactor designed for AC-3e/AC-3 applications, rated at 185A and 90kW at 400V. It features an electronic drive with a 24V DC coil voltage, suitable for PLC inputs, and is built to extended rated conditions for railroad applications according to IEC 60077. This contactor includes 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts.

This contactor is specifically engineered for the demanding environment of railway applications, including traction control systems, auxiliary power switching, and control circuits on rolling stock. Its robust construction and adherence to IEC 60077 standards ensure reliable operation under harsh conditions.

Stanlo Automation, a veteran-owned distributor of surplus industrial automation parts, provides the Siemens 3RT1056-6XB46-0LA2. Rely on us for high-quality, cost-effective solutions for your specialized industrial needs, ensuring operational continuity.

Technical specifications

Part Number	3RT1056-6XB46-0LA2
Manufacturer	Siemens
Series	SIRIUS 3RT
Poles	3
Current Rating	185A (AC-3)
Power Rating	90 kW @ 400V
Coil Voltage	24V DC
Auxiliary Contacts	2 NO + 2 NC
Connection	Busbar (main), Screw (control/auxiliary)
Drive Type	Electronic
Standards	IEC 60077 (Railroad)

Common applications

Traction control systems

Railway signaling

Rolling stock control

Industrial automation

Harsh environment applications

Compatible systems

Designed for use in railway control systems and environments that meet IEC 60077 standards. Compatible with PLC systems that use a 24V DC control signal.

Also known as

Siemens SIRIUS Contactor 3RT1056 Contactor Traction Contactor Railroad Contactor 24V DC Contactor

Replaces / compatible with

This contactor is part of the Siemens SIRIUS 3RT series and is designed to replace or be interchangeable with other contactors within this series that share similar specifications.

Technical note

Expert tip

The 3RT1056-6XB46-0LA2 is specifically designed for railway applications, incorporating features that allow it to withstand the vibration, shock, and environmental extremes typical of this sector.

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Frequently asked questions

What specific conditions does the Siemens 3RT1056-6XB46-0LA2 meet for railroad applications?

The Siemens 3RT1056-6XB46-0LA2 is built to extended rated conditions for railroad applications, adhering to the IEC 60077 standard, ensuring reliable performance in the demanding railway environment.