Siemens 3RT2526-1AG20 Power Contactor 25A, 11kW, 4-Pole, 110V AC, AC-3 Original Brand New

Overview

The Siemens 3RT2526-1AG20 is a core component of the SIRIUS 3RT25 contactor series, specifically engineered for AC switching applications, particularly those requiring reliable switching of resistive and moderately inductive loads (AC-3). Its 4-pole configuration is ideal for controlling loads where multiple circuits need to be switched simultaneously, such as in certain multi-speed motor applications or complex heating systems. This magnet contactor provides robust, long-term operational performance in demanding industrial environments.

Key Features

• Rated Current: 25 A for AC-3 applications

• Power Handling: 11 kW at 400 V

• Poles: 4-pole contactor for versatile circuit control

• Coil Voltage: 110 V AC, 50/60 Hz

• Main Contacts: 2 Normally Open (NO) + 2 Normally Closed (NC)

• Auxiliary Contacts: 1 NO + 1 NC for auxiliary control circuits

• Connection Type: Screw terminals for secure and reliable wiring

• Size: S0 – compact and space-saving design

• Durable Construction: Siemens-grade components for long-lasting operation

Benefit

• Reliable Switching: Ensures safe and consistent operation for AC motors and industrial equipment.

• Versatile Use: Supports both main and auxiliary circuits with multiple contact configurations.

• High Efficiency: Optimized for AC-3 load performance up to 11 kW.

• Durable & Safe: Screw terminals and premium construction ensure long service life and safe connections.

• Compact Design: Saves panel space without compromising performance.

Function

1. Motor Switching (AC-3): Primary function is to switch 3-phase AC motors on and off, handling the high inrush currents typical of starting a motor.

2. Load Control: Used for reliably switching other AC loads, such as lighting banks, heating elements, and transformers.

3. Circuit Isolation: Provides a means of electrically isolating equipment from the power source for maintenance or safety purposes.

4. Control Circuit Interfacing: The auxiliary contacts allow the contactor’s status (ON/OFF) to be monitored by PLCs or used for interlocking logic with other control devices.

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