3RT1456-6AF36

The 3RT1456-6AF36 is a Siemens SIRIUS large power contactor, featuring an S6 frame, 3 poles, AC-1 rated 275A/690V, coil voltage 110-127V AC/DC, equipped with 2NO+2NC auxiliary contacts, busbar connection for the main circuit, and a mechanical life of approximately ten million cycles. It is suitable for high-current motor control and switchboard replacement and maintenance.

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Siemens SIRIUS 3RT1456-6AF36 S6 Large Power Contactor 110-127V Coil

Product Positioning

The 3RT1456-6AF36 is a large power contactor with an S6 frame from the Siemens SIRIUS 3RT.4 series, designed specifically for high-current motor control and switchboard applications in industrial settings. This model features a 110-127V AC/DC coil, busbar-type main circuit terminals, and 2NO+2NC auxiliary contacts, offering robust construction and stable switching. Kenxin Motors provides genuine original parts and comprehensive technical consultation to assist customers in quickly replacing equipment and establishing spare parts.

Core Product Advantages and Features

S6 Large Frame Design

It can handle a rated current load of 275A (690V/40°C) for AC-1, suitable for heavy-duty motors and power distribution applications.

110-127V AC/DC coil

The coil is compatible with both AC and DC power supplies, making it easy to select for different control circuit voltage specifications.

2NO+2NC auxiliary contacts

Standard configuration includes 2 sets of normally open and 2 sets of normally closed auxiliary contacts, facilitating circuit interlocking and status feedback design.

Busbar type main circuit terminal

The main circuit adopts a busbar design, which makes high-current wiring more stable and reduces contact resistance.

Mechanical lifespan reaches tens of millions of cycles

The SIRIUS 3RT.4 contactor, built on the same platform, has a mechanical life of approximately 10 million operating cycles, demonstrating high durability.

Made in Germany

Siemens original factory in Germany, stable quality, Kenxin Motor provides authorized agents to guarantee genuine products.

project	Specification
brand	Siemens
series	SIRIUS 3RT.4
model	3RT1456-6AF36
Frame size	S6
Extreme number	3 poles
AC-1 rated current	275 A(690V/40°C);250 A(690V/55-60°C)
coil voltage	110-127 V AC/DC (50-60Hz)
Auxiliary contact	2 NO + 2 NC
Main circuit terminals	busbar connection
Control/Auxiliary Circuit Terminals	Screw terminals
Place of origin	Germany
EAN code	4011209509702
Packaging reference weight	3.372 kg
Packaging reference dimensions	190 × 129 × 181 mm

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3RT1456-6AB36-WH

The 3RT1456-6AB36-WH is a Siemens SIRIUS large contactor, S6 frame, 3 poles, AC-1 rated 275A/690V, basic coil 23-26V AC/DC, equipped with 2NO+2NC auxiliary contacts and surge suppression, main circuit busbar connection, mechanical life of approximately ten million cycles, suitable for large motor control and spare parts replacement.

3RT1456-6AB30-WH

The 3RT1456-6AB30-WH is a member of the Siemens SIRIUS S6 frame large contactor series. It is a 3-pole contactor, with a maximum rated capacity of 275A/690V for the AC-1 version in the same series. It features 2NO+2NC auxiliary contacts and main circuit busbar connection, suitable for high-current motor control and power distribution spare parts needs. Please confirm the coil voltage difference with the WH version before ordering.