3RT1264-6AP36

The 3RT1264-6AP36 is a Siemens SIRIUS 3RT12 vacuum contactor with an S10 frame, AC-3 current rating of 225A, power rating of approximately 110kW, coil rated for 220-240V AC/DC, busbar with screw terminals, standard configuration of 2NO+2NC contacts, weight of approximately 7.26 kg, and a lifespan of approximately ten million cycles. It is suitable for motor switching applications.

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Siemens 3RT1264-6AP36 Vacuum Contactor S10 Base 225A

Product Positioning

The 3RT1264-6AP36 is a Siemens SIRIUS 3RT12 series S10 frame vacuum contactor, with an AC-3 rated current of 225A, suitable for the on/off control of medium to large three-phase motors. This model is equipped with a 220-240V AC/DC operating coil, ensuring high compatibility with common control voltages in Taiwan. Kenxin Motors is an authorized Siemens distributor, providing genuine products, warranties, and engineering selection consultation.

Core Product Advantages and Features

S10 base design

The AC-3 model has a rated current of 225A and a power output of approximately 110kW at 400V, making it suitable for medium to large motor loads.

220-240V AC/DC operating coil

Compatible with both AC and DC control power supplies, offering high flexibility in on-site configuration.

Vacuum arc-extinguishing structure

Replacing traditional air interrupters with vacuum tubes extends switching life and reduces maintenance costs.

2NO+2NC auxiliary contacts

Four sets of auxiliary contacts meet the control circuit requirements for interlocking protection, feedback signals, etc.

Busbar main circuit wiring

Main circuit busbar connection and auxiliary circuit screw terminals, balancing wiring efficiency and stability.

Long mechanical life

With a mechanical operating life of approximately 10 million cycles, it is suitable for production line equipment requiring high-frequency start-up and shutdown.

project	Specification
Product Type	SIRIUS 3RT12 Series Vacuum Contactors
Applicable base	S10
Rated current (AC-3)	225 A
Rated power (400V AC-3)	Approximately 110 kW
Operating coil voltage	220 - 240 V AC (50/60Hz) / DC
Extreme number	3 poles
Auxiliary contacts	2NO + 2NC
Main circuit wiring method	Busbar
Auxiliary/control circuit wiring	Screw terminals
Total weight	Approximately 7.26 kg
External dimensions (height x width x depth)	Approximately 210 x 145 x 206 mm
Mechanical life	Approximately 10 million operations
Manufacturing country	Germany

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