3RT1075-2AP36

The Siemens SIRIUS S12 large contactor 3RT1075-2AP36 has a rated current of 400A, AC-3 approximately 200kW, and a coil voltage of 220-240V AC/DC universal. It features 3-pole main contacts with 2 normally open and 2 normally closed auxiliary contacts. Its specifications are consistent with the 6AP36 version in the same series. Kenxin Motor provides authorized sources and selection consultation.

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Siemens SIRIUS 3RT1075-2AP36 large power contactor (actual photo)

Product Positioning

The 3RT1075-2AP36 is a Siemens SIRIUS 3RT10 series S12 frame large power contactor. Its main circuit specifications are identical to the 6AP36 version, with a coil voltage of 220-240V AC/DC. It is suitable for direct starting and stopping of large three-phase motors and heavy-load switching in distribution panels. The prefixes 2 and 6 appear side-by-side in the catalogs of multiple distributors, and the main circuit data is the same, suggesting it is a parallel part number rather than an upgraded version.

Core Product Advantages and Features

S12 large frame, 400A load capacity

AC-1 has a rated current of 430A, and AC-3 has approximately 400A/200kW, consistent with the specifications of the 6AP36 version in the same series.

220-240V coil voltage

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 to facilitate interlocking and signal feedback.

Spring-type/screw-type terminals coexist

Some catalogs indicate spring-loaded terminals; please refer to the product nameplate for the actual terminal type.

Prefix differences need clarification from the manufacturer.

The specific technical differences between prefixes 2 and 6 are not documented in official documents, but the main circuit specifications have been verified to be the same.

Siemens Original Authorization

Kenxin Motors provides genuine product guarantee and arrival verification service.

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)
AC-4 rated current	Approximately 350 A/200 kW (partial catalog listings)
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
Applicable Standards	IEC 60947-4-1
Remark	The functional differences between prefixes 2 and 6 have not been confirmed in publicly available information and are for reference only.

Recommend

3RT1075-6A

The Siemens SIRIUS S12 large contactor series 3RT1075-6A has a main circuit rated current of 400A and an AC-3 rated current of approximately 200kW. It covers various coil voltage versions and features a 3-pole main contact with 2 normally open and 2 normally closed auxiliary contacts. Kenxin Motor can assist in confirming the required coil voltage and procure the corresponding complete part number on your behalf.

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.

3RT1075-0AP36

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.