Overview
The Siemens 3RT1456-2AP36 is a robust and reliable power contactor designed for industrial applications. Rated for AC-1 loads up to 275 A at 690 V and suitable for operation at 40 °C ambient temperature, this 3-pole contactor ensures smooth and safe switching of electrical loads. Its conventional auxiliary contacts (2 NO + 2 NC) and spring-loaded terminals simplify integration into control systems, providing high operational reliability for both main and auxiliary circuits. Ideal for motor control, switching, and distribution applications.
Benefit
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High Current Capacity: Handles up to 275 A at 690 V AC-1 for heavy-duty industrial applications.
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Reliable Switching: 3-pole design ensures consistent, safe operation.
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Flexible Control: Conventional auxiliary contacts (2 NO + 2 NC) allow for easy integration with control circuits.
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Efficient Installation: Spring-loaded terminals simplify wiring and reduce installation time.
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Versatile Drive Compatibility: Works with AC (50-60 Hz) and DC drives for broad application compatibility.
Functions / Features
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3-pole power contactor suitable for AC-1 loads
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Rated current: 275 A
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Rated voltage: 690 V
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Control voltage: 220-240 V AC / DC
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Conventional auxiliary contacts: 2 NO + 2 NC
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Main circuit connection: Busbar
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Control and auxiliary circuit: Spring-loaded terminals
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Operational temperature: up to 40 °C
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Designed for industrial motor and load control
Application
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Heating Systems: Switching large electrical heating elements.
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Lighting Systems: Control of large commercial and industrial lighting banks.
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Transformer Control: Switching primary circuits of power transformers.
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Power Distribution: Acting as a main disconnect or control element in non-motorized high-current lines.
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Capacitor Banks: Switching capacitor stages for power factor correction (requires proper sizing).
For more information on the Siemens 3RT1456-2AP36 and to explore a complete range of industrial control components, visit Turll today.












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