3RT1276-6NP36

The 3RT1276-6NP36 is a Siemens SIRIUS S12 frame vacuum contactor, 3-pole, AC-3 rated 500A, corresponding to a power of 250kW (400V), with an electronic operating mechanism and support for PLC interface 24V DC control. It features 2NO+2NC auxiliary contacts, main circuit busbar connection, and is suitable for high-end automated motor control.

Share To

Siemens SIRIUS 3RT1276-6NP36 S12 Vacuum Contactor with Electronic Operating Mechanism

Product Positioning

The 3RT1276-6NP36 is a Siemens SIRIUS 3RT12 series S12 frame vacuum contactor, employing vacuum arc-extinguishing technology, suitable for high-current, high-switching-frequency motor control applications. This model features an electronic operating mechanism, supporting 24V DC PLC interface signal control, making it easier to integrate with automation control systems compared to traditional electromagnetic coils. Kenxin Motors is an authorized Siemens distributor, providing genuine products and technical support.

Core Product Advantages and Features

S12 Large Vacuum Contactor

Vacuum arc-extinguishing structure, suitable for heavy-load motor applications with high current and high frequency switching.

AC-3 rated 500A/250kW

AC-3 rated current is 500A at 400V, corresponding to a power of 250kW, with strong load capacity.

Electronic operating mechanism

It adopts an electronic drive design, which has good anti-interference ability and high stability.

24V DC PLC Interface Control

The control signal can be directly connected to the PLC's 24V DC output, facilitating automation integration.

2NO+2NC auxiliary contacts

Standard configuration includes 2 sets of normally open and 2 sets of normally closed auxiliary contacts for easy interlocking and status monitoring.

Conforms to international standards

Complies with relevant standards such as IEC/EN 60947-1, 60947-4-1, and 60947-4-7.

project	Specification
brand	Siemens
series	SIRIUS 3RT12 (Vacuum Contactor)
model	3RT1276-6NP36
Frame size	S12
Extreme number	3 poles
AC-3 rated current	500 A (400V)
Corresponding power	250 kW (400V)
Operating mechanism type	Electronic, PLC interface, 24V DC control
Auxiliary contact	2 NO + 2 NC
Main circuit terminals	busbar connection
Control/Auxiliary Circuit Terminals	Screw terminals
Applicable Standards	IEC/EN 60947-1, 60947-4-1, 60947-4-7

Recommend

3RT1276-6AP36

The 3RT1276-6AP36 is a Siemens SIRIUS S12 frame vacuum contactor, 3-pole, AC-3 rated 500A, corresponding to a power of 250kW (400V), coil 220-240V AC/DC, using a traditional electromagnetic operating mechanism, equipped with 2NO+2NC auxiliary contacts, main circuit busbar connection, suitable for high current switching of large motors.

3RT1275-6LA06

The 3RT1275-6LA06 is a Siemens SIRIUS 3RT12 vacuum contactor with an S12 frame, AC-3 rated current of 400A, and a power of approximately 200kW at 400V. It is equipped with a 400V AC operating coil, 3 poles with 2NO+2NC auxiliary contacts, and busbar wiring. It is suitable for heavy-load control of large motors.