Siemens 3RT1456-6AD36 Power Contactor AC-1, 275A / 690V, 3-Pole, 42-48V AC/DC Coil Original Brand New

Overview

The Siemens 3RT1456-6AD36 is a high-performance AC-1 power contactor designed for industrial and commercial applications requiring reliable switching of heavy electrical loads. Engineered for durability, efficiency, and safety, this 3-pole contactor is ideal for motor control, heating systems, and general AC switching operations.

Features

• Rated current: 275 A AC-1 / Voltage: 690 V

• 3-pole design for versatile industrial applications

• Coil voltage: 42-48 V AC (50-60 Hz) or DC

• Conventional auxiliary contacts: 2 NO + 2 NC

• Main circuit connection via busbar for secure installation

• Screw terminal connections for control and auxiliary circuits

• Maximum operating temperature: 40 °C

Benefit

• High Power Capacity: Handles 275 A loads with exceptional thermal stability (up to 40 °C).

• Flexible Control: Universal control voltage of 42-48 V AC/DC simplifies integration into different control panels.

• Enhanced Connectivity: Busbar connection provides a secure, high-integrity connection for main power circuits.

• Integrated Auxiliary Contacts: Built-in 2 NO + 2 NC contacts offer immediate signaling and interlocking capability without needing external blocks.

• Trusted Quality: A genuine Siemens product guarantees industrial reliability and compliance with global standards.

Function

The 3RT1456-6AD36 is primarily used for switching resistive loads (AC-1 category), such as:

• Heating systems

• Power distribution circuits

• Isolation of power circuits

• Capacitor banks (depending on inrush current)

Its high switching capacity ensures reliable operation and longevity even under heavy load conditions.

Technical Specification

• Rated Current (AC-1): 275 A

• Rated Voltage: 690 V

• Coil Voltage (Uc): 42-48 V AC/DC

• Poles: 3

• Auxiliary Contacts: 2 NO + 2 NC

• Control Circuit Terminal Type: Screw

• Main Circuit Connection: Busbar

• Ambient Temperature: Up to 40 °C

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