Siemens 3RT2045-1AH00 SIRIUS Power Contactor, 80A, 37kW, 48V AC Coil, 3-Pole, Size S3 Original Brand New

Overview

The Siemens 3RT2045-1AH00 is a high-performance 3-pole power contactor engineered for demanding industrial applications. Designed to handle 80 A current and up to 37 kW at 400 V, this AC-3e/AC-3 rated contactor is ideal for switching motors and other heavy loads. Operating at 48 V AC / 50 Hz, it comes equipped with 1 NO + 1 NC auxiliary contacts and features secure screw terminal connections. With its compact S3 size, it ensures a space-saving installation without compromising performance.

Key Benefit

• Reliable High-Current Switching: Handles up to 80 A current for heavy-duty industrial loads.

• Compact and Efficient: S3 frame size enables easy integration into control panels.

• Versatile Application: Suitable for motor starters, power distribution, and automation systems.

• Pre-installed Auxiliary Contacts: 1 Normally Open and 1 Normally Closed for extended control flexibility.

• Easy Wiring: Screw terminals ensure secure and fast electrical connections.

Function / Application

The Siemens 3RT2045-1AH00 Contactor is primarily used for:

1. Switching Electric Motors: Ideal for Direct-on-Line (DOL) starting and controlling 3-phase AC motors up to 37 kW.
2. Remote Control: Used to switch power circuits remotely via the 48 V AC control signal.
3. General Power Switching: Suitable for switching heating, lighting, and capacitor banks in industrial and commercial settings.
4. Interlocking Circuits: The integrated auxiliary contacts enable safety-related functions, signaling, and control circuit interlocks.

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