3RT1054-1LA06

The 3RT1054-1LA06 is a Siemens SIRIUS 3RT10 series S6 base contactor, rated at 115A AC-3 and 55kW at 400V. It has 2NO+2NC auxiliary contacts and does not include an operating mechanism at the factory. An operating mechanism module can be added separately according to the field voltage to flexibly meet the needs of multi-voltage projects and spare parts.

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Siemens SIRIUS 3RT1054-1LA06 Contactor body without operating mechanism

Product Positioning

The 3RT1054-1LA06 is the "bare" version of the Siemens SIRIUS 3RT10 large contactor. The main and auxiliary contacts are identical to the standard product, except that the operating mechanism (coil) is not included with the product. This design allows system integrators or maintenance units to purchase and assemble the appropriate operating mechanism module separately based on the actual control voltage on site, which is very practical for multi-voltage projects or spare parts management.

Core Product Advantages and Features

Excluding operating mechanism

The device is shipped without a coil/operating mechanism. A corresponding voltage mechanism module must be selected and matched separately before it can be powered on and used.

S6 large chassis main circuit

The AC-3 model has a rated current of 115A and a power output of up to 55kW at 400V, making it suitable for large-scale three-phase power control applications.

Standard auxiliary contacts

Built-in 4 sets of instantaneous auxiliary contacts (2NO+2NC), which can be directly used for interlocking and status feedback.

Voltage selection flexibility

The same unit can be equipped with operating mechanisms of different voltage levels as needed, reducing the variety of spare parts and inventory costs.

Dual-terminal type

The main circuit uses square terminals, while the control and auxiliary circuits use screw terminals, making wiring and installation convenient.

Made in Germany

Continuing the consistent quality and international certification foundation of the SIRIUS 3RT10 series

project	Specification
series	SIRIUS 3RT10
Base code	S6
Extreme number	3 poles
AC-3 rated current	115 A
AC-3 Rated Power (400V)	55 kW
auxiliary contacts	2 NO + 2 NC
Operating mechanism	Excludes (corresponding voltage mechanism module must be purchased separately)
Main circuit terminals	Square terminal (box terminal)
Control/Auxiliary Terminals	Screw terminals
weight	Approximately 3.14 kg (excluding operating mechanism)
Origin	Germany

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3RT1054-1NF36

The 3RT1054-1NF36 is a Siemens SIRIUS 3RT10 series S6 base contactor, rated at 115A AC-3 and 55kW at 400V. It has 2NO+2NC auxiliary contacts, uses an electronic operating mechanism, and is driven by a 24V DC signal through a PLC interface. It is suitable for precise timing control and digital integration applications.

3RT1054-1LA00

Similar to LA06, 3RT1054-1LA00 is a Siemens SIRIUS 3RT10 S6 base unit, rated at 115A AC-3, 55kW at 400V, with built-in 2NO+2NC auxiliary contacts and no operating mechanism. No explanation of the difference in the suffixes between LA00 and LA06 is available in publicly available information; it is recommended to consult and confirm the specifications before placing an order.

3RT1054-1AV36

The 3RT1054-1AV36 is a Siemens SIRIUS 3RT10 series S6 base contactor, rated at 115A AC-3 and 55kW at 400V. It has 2NO+2NC auxiliary contacts and a coil with a universal AC/DC voltage of 380-420V, making it suitable for high-voltage control power supplies. It is commonly used in the start-up and shut-off control of large water pumps and air compressors.