3RT1075-0AP36

The Siemens SIRIUS S12 large contactor 3RT1075-0AP36 has a main circuit rated current of 400A, approximately 200kW AC-3, and a coil voltage of 220-240V AC/DC universal. It features a 3-pole main contact with 2 normally open and 2 normally closed auxiliary contacts, suitable for large motor start-stop circuits. Kenxin Motor is an authorized agent and can assist in verifying the specifications of the delivered goods.

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Siemens SIRIUS 3RT1075-0AP36 large power contactor (actual photo)

Product Positioning

The 3RT1075-0AP36 belongs to the Siemens SIRIUS 3RT10 series S12 frame large power contactor. Its coil voltage is 220-240V AC/DC, and its main circuit specifications are the same as the 2AP36 and 6AP36 versions in the same series. It is suitable for direct starting and stopping of large three-phase motors and switching of high-current circuits in distribution panels, and is ideal for replacement of power panels and for maintenance spare parts procurement in factories.

Core Product Advantages and Features

S12 large frame design

The main circuit has a rated current of 400A, and the AC-3 has a rated current of approximately 200kW/400V, with a load-carrying capacity consistent with other circuits in the same series.

220-240V coil universal design

The AP coil code corresponds to 220-240V AC/DC, suitable for the control voltage of most industrial switchboards.

Built-in 2NO2NC auxiliary contacts

The main contacts are equipped with two normally open and two normally closed auxiliary contacts in addition to the three-pole main contacts, which facilitates interlocking and signal feedback.

Busbar main circuit terminals

The main circuit uses a bus terminal design, while the auxiliary/control circuit uses screw terminals.

The prefix 0 needs clarification from the manufacturer.

Publicly available information commonly uses the prefix 2 or 6; versions with the prefix 0 have not yet been independently verified.

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 voltage code	AP: 220-240V AC/DC
Rated insulation voltage	1000 V AC
External dimensions (height x width x depth)	Approximately 214 x 160 x 225 mm
Main circuit terminals	Busbar (BAR) terminals
Applicable Standards	IEC 60947-4-1
Remark	Versions prefixed with 0 are not found independently in the public catalog; please refer to the product nameplate upon arrival.

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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.

3RT1075-0A

The Siemens SIRIUS S12 large contactor series 3RT1075-0A has a main circuit rated current of 400A and an AC-3 rated current of approximately 200kW. It features a 3-pole main contact with 2 normally open and 2 normally closed auxiliary contacts. Actual shipments are subject to part number subdivision based on coil voltage. Kenxin Motor can assist in confirming the required specifications and procure the corresponding complete part number on your behalf.

3RT1070-6AP36

The Siemens SIRIUS 3RT10 series S12 large-frame power contactor shares the same frame design as the 3RT1075/3RT1076 in the same series. It comes standard with 2NO+2NC auxiliary contacts and screw terminals for main circuit wiring with busbars. It can be installed in various heavy-duty control panels and large motor starting circuits. It has a mechanical life of tens of millions of cycles and is stable and durable.