Overview

The Siemens 3RT1456-6AP36 is a high-performance power contactor designed for demanding industrial switching applications. Engineered for long-lasting reliability, this 3-pole contactor supports AC-1 operational currents up to 275 A and voltages up to 690 V, making it ideal for general-purpose power switching in heavy-duty environments. Its coil voltage compatibility of 220–240 V AC/DC ensures flexible integration within a wide range of control systems.

Built with Siemens’ world-class durability and compliance standards, the 3RT1456-6AP36 features a robust contact configuration of 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts, enabling advanced monitoring and control capabilities.

Benefit

• High Current Capacity: Supports up to 275 A AC-1, suitable for large-scale industrial equipment.

• Flexible Voltage Compatibility: Operates at 220–240 V AC/DC, simplifying system integration.

• Durable Construction: Built for reliability under continuous operation in harsh industrial environments.

• Safe & Stable Connectivity: Busbar main circuit connection paired with screw terminal control/aux circuits ensures secure and vibration-resistant installation.

• Enhanced Control: Includes 2 NO + 2 NC auxiliary contacts, enabling status feedback and interlocking functionality.

• Siemens Quality: Engineered for long service life and optimal performance.

Function

• Main Power Switching: Designed for frequent switching of electrical loads in AC-1 operating conditions.

• Motor & Equipment Control: Suitable for use in automation systems, distribution boards, and industrial control panels.

• Auxiliary Signal Handling: Auxiliary contacts provide feedback signals, interlocks, or command functions.

• Reliable Busbar Integration: Busbar connection ensures fast, safe, and efficient installation in modular power systems.

Technical Highlights

• Operational Category: AC-1

• Rated Current: 275 A

• Rated Voltage: 690 V

• Poles: 3

• Coil Voltage: 220–240 V AC (50/60 Hz) / DC

• Auxiliary Contacts: 2 NO + 2 NC

• Main Circuit: Busbar connection

• Control/Aux Circuit: Screw terminal

• Operating Temperature: Up to 40 °C

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