3RT1075-0LA06

The Siemens SIRIUS S12 large contactor 3RT1075-0LA06 has a main circuit rated current of 400A and an AC-3 rated current of approximately 200kW. The LA06 is a contactor body without a coil operating mechanism, suitable for additional coils or special assembly requirements. Kenxin Motors recommends confirming the actual coil configuration and delivery details before placing an order.

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Siemens SIRIUS 3RT1075-0LA06 Large Electric Contactor - Actual Photo

Product Positioning

The 3RT1075-0LA06 is a Siemens SIRIUS 3RT10 series S12 frame large power contactor. The LA06 part number indicates that the contactor body is shipped without the coil operating mechanism. The main circuit specifications are the same as the standard 6AP36 version. It is suitable for system integrators to add an operating mechanism according to actual needs or as a maintenance spare part. It is a common option for customized applications in large switchboards.

Core Product Advantages and Features

S12 large frame, 400A load capacity

The main circuit AC-1 reaches 430A, and AC-3 is approximately 400A/200kW, consistent with the standard version in the same series.

Coilless operating mechanism

LA06 indicates that the coil operating mechanism is not included in the factory specifications, but can be added separately according to site requirements.

Built-in 2NO2NC auxiliary contacts

The main contacts are configured with 2 normally open and 2 normally closed auxiliary contacts.

Bus main circuit terminals

The main circuit uses bus (BAR) terminals, while the auxiliary/control circuit uses screw terminals.

The prefix 0 needs clarification from the manufacturer.

The manufacturer's publicly available information mostly mentions the LA06 part number with the prefix 6, while the version with the prefix 0 has not yet been independently verified.

Suitable for customized assembly

It can be used as a base unit for system integrators to add their own coils or as a spare part for the maintenance of existing machines.

project	Specification
Base size	S12
Rated operating current AC-1	430 A (400V, 40°C)
Rated operating current/power AC-3	400 A / approximately 200 kW (400V AC)
Extreme number	3 poles, 3 sets of normally open main contacts
Built-in auxiliary contacts	2 normally open + 2 normally closed (2 NO + 2 NC)
Coil/operating mechanism	Operating mechanism without coil (LA06)
Rated insulation voltage	1000 V AC
External dimensions (height x width x depth)	214 x 160 x 225 mm
Main circuit terminals	Busbar (BAR) terminals
Applicable Standards	IEC 60947-4-1
Remark	The corresponding part number found in publicly available information from the original manufacturer and distributors is 6LA06; versions with the prefix 0 have not been independently confirmed.

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3RT1075-0A

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