3RT1056-6AF36

Description

Overview

The Siemens 3RT1056-6AF36 is a high-performance power contactor engineered for demanding industrial applications requiring reliable motor control and switching performance. Designed for AC-3e/AC-3 operation up to 185 A and motor ratings up to 90 kW at 400 V, this 3-pole contactor ensures dependable operation in both AC and DC environments. With a 110–127 V DC control voltage, robust busbar main circuit connection, and screw-terminal auxiliary control circuit, it delivers exceptional flexibility and secure installation.

This Siemens contactor is part of the renowned SIRIUS series, providing long mechanical life, high switching efficiency, and compatibility with a wide range of industrial control systems.

Benefit

• High Switching Reliability: Ideal for heavy-duty motor switching under AC-3e/AC-3 conditions.

• Industrial Durability: Built to withstand demanding operating environments with long service life.

• Flexible Control Voltage: Supports 110–127 V DC for versatile control-circuit configuration.

• Streamlined Installation: Main circuit busbar connection and screw terminals for safe, fast wiring.

• Enhanced Auxiliary Control: Includes 2 NO + 2 NC auxiliary contacts for expanded control options.

• Energy Efficient: Engineered for optimized coil performance and reduced power consumption.

Features & Function

• Rated Operational Current: 185 A (AC-3/AC-3e)

• Motor Power Rating: 90 kW at 400 V AC (50–60 Hz)

• Operating Coil Voltage: 110–127 V DC

• Poles: 3-Pole main contacts

• Auxiliary Contacts: 2 Normally Open + 2 Normally Closed

• Main Circuit Connection: Busbar

• Control / Auxiliary Circuit Connection: Screw terminals

• Application: Motor starters, industrial machinery, power distribution systems, conveyor systems, pumps, compressors, and automation environments.

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