Overview
The Siemens 3RT1456-6NP36 is a high-performance 3-pole power contactor engineered for demanding industrial applications requiring reliable switching and long operational life. Designed for systems up to 275 A AC-1 and 690 V, this industrial-grade contactor delivers superior efficiency, robust durability, and advanced electronic control capabilities. Its wide operating coil range of 200–277 V AC (50/60 Hz) or DC, combined with PLC-compatible 24 V DC drive input, ensures seamless integration into modern automation environments.
Benefit
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High current handling capacity up to 275 A for heavy-duty AC-1 applications
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Wide voltage control range for flexible installation
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PLC-ready control input for modern automation systems
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Enhanced operational reliability with electronic drive technology
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Extended service life due to rugged Siemens engineering
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Safe and stable connections through screw terminals and busbar-ready main circuit
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Reduced maintenance needs thanks to durable auxiliary contacts (2 NO + 2 NC)
Features & Function
1. Powerful Switching Performance
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Rated for AC-1 275 A / 690 V ensuring dependable operation in industrial electrical systems.
2. Universal Coil Voltage
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Compatible with 200–277 V AC and 200–277 V DC, providing installation flexibility.
3. PLC-Compatible 24 V DC Drive
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Designed with an electronic drive input optimized for automation and control systems.
4. Reliable Auxiliary Contacts
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Equipped with 2 NO + 2 NC auxiliary contacts for versatile signaling and interlocking.
5. Robust Mechanical Construction
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Siemens’ durable build quality suitable for continuous, heavy-duty use at 40°C ambient temperature.
6. Easy & Secure Wiring
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Main circuit designed for busbar connections
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Control & auxiliary circuits use screw terminal technology for secure, vibration-resistant wiring
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