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Siemens 3RT1276-6AF36 500A 3-Pole Vacuum Contactor

Siemens 3RT1276-6AF36 3-Pole Vacuum Contactor

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ManufacturerSiemens

Part number3RT1276-6AF36

Type Vacuum Contactor

Poles 3

Amperage 500A (AC-3e/AC-3)

Voltage 400V

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High 500A AC-3e/AC-3 rating Vacuum interrupter for superior arc control Versatile 110-127V AC/DC coil Integrated 2 NO + 2 NC auxiliary contacts Suitable for large motor loads up to 250 kW

Product description

The Siemens 3RT1276-6AF36 is a high-capacity vacuum contactor designed for demanding AC-3e/AC-3 applications. It offers a 500A rating at 400V, capable of controlling motors up to 250 kW. This 3-pole contactor operates with a versatile 110-127V AC/DC coil and includes 2 NO + 2 NC auxiliary contacts for essential control and signaling functions.

This robust vacuum contactor is engineered for heavy-duty motor control in industrial environments, providing reliable switching and enhanced safety. It is suitable for use in sectors such as heavy manufacturing, mining, and large-scale power systems where high current capacity is paramount.

Stanlo Automation, your trusted veteran-owned surplus parts distributor, offers the Siemens 3RT1276-6AF36. We provide cost-effective solutions and dependable service, ensuring you get the quality industrial automation components you need.

Technical specifications

Type	Vacuum Contactor
Poles	3
Amperage	500A (AC-3e/AC-3)
Voltage	400V
Motor Power	250 kW
Coil Voltage	110-127V AC/DC
Auxiliary Contacts	2 NO + 2 NC
Main Circuit	Busbar
Control Circuit	Screw Terminal
Size	S12

Common applications

Heavy industry

Mining operations

Large motor control

Power generation

Industrial automation

Compatible systems

Siemens SIRIUS 3RT12 system components

Also known as

Siemens SIRIUS 3RT12 Vacuum Contactor 500A Vacuum Contactor

Replaces / compatible with

The 3RT1276-6AF36 is part of the Siemens SIRIUS 3RT12 vacuum contactor series and can replace other contactors in this range with matching specifications.

Technical note

Expert tip

For applications involving frequent switching, ensure the operating duty cycle is within the specified limits for the SIRIUS 3RT12 series.

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Frequently asked questions

What is the power rating of the Siemens 3RT1276-6AF36 contactor?

The Siemens 3RT1276-6AF36 vacuum contactor is rated for 250 kW at 400V under AC-3 utilization category. It can handle motor loads up to 500A.