Siemens 3RT2545-1AL20 Power Contactor AC-3, 80A, 37 kW, 4-Pole, 230V AC, S3 Size Original Brand New

Overview

The Siemens 3RT2545-1AL20 is a high-performance power contactor engineered for reliable switching of motors and industrial loads. Designed for AC-3 applications up to 80 A and 37 kW at 400 V, this 4-pole contactor delivers exceptional durability, energy efficiency, and safe operation. With a compact S3 frame size, robust screw terminals, and high switching reliability, it is ideal for demanding industrial automation environments.

Description

The Siemens 3RT2545-1AL20 power contactor is part of the trusted Sirius series, offering premium performance for motor control and power switching. It features 2 NO + 2 NC main contacts and 1 NO + 1 NC auxiliary contacts, providing flexible wiring options for a variety of control configurations. Its 230V AC 50/60Hz coil voltage ensures compatibility with global power standards.

This contactor is built with advanced engineering to ensure long service life, reduced maintenance, and optimal efficiency in both standard and heavy-duty applications. Siemens’ renowned reliability makes this component ideal for OEMs, industrial plants, automated systems, and electrical control panels.

Features

• AC-3 Rated Current: 80 A

• Motor Rating: 37 kW at 400 V

• Poles: 4-pole design

• Coil Voltage: 230 V AC, 50/60 Hz

• Main Contacts: 2 NO + 2 NC

• Auxiliary Contacts: 1 NO + 1 NC

• Connection Type: Screw terminal

• Frame Size: S3

Function

• Reliable switching of three-phase motors

• High endurance for frequent operation cycles

• Safe isolation and load control in industrial environments

• Seamless integration with Siemens Sirius control systems

• Suitable for motor starters, control cabinets, and automation systems

Benefit

• High Reliability: Designed for robust and long-lasting industrial use.

• Flexible Control: Multiple NO/NC contacts for easy configuration.

• Global Compatibility: 230V AC coil and standardized sizing.

• Compact Design: S3 size for efficient space utilization.

• Siemens Quality Assurance: Ensures safety, performance, and durability.

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