Siemens 3RT1055-6SF36-3PA0 SIRIUS 3RT1055 Power Contactor, 150A, 75kW, 96-127V AC/DC Coil Original Brand New

Overview

The Siemens 3RT1055-6SF36-3PA0 power contactor from the SIRIUS 3RT1 series is a high-performance, 3-pole device specifically engineered for switching motors up to 75 kW (400 V) under the performance categories AC-3e and AC-3. This model features a robust 150 A rated operational current and an advanced electronic drive for flexible control over a wide voltage range (Uc​) of 96-127 V AC (50/60 Hz) or DC. Crucially, it includes a Fail-Safe PLC (F-PLC) input optimized for 24 V DC signals, making it an excellent choice for safety-relevant applications in industrial automation.

Benefit & Function

• Integrated Safety: The dedicated F-PLC input at 24 V DC allows for direct, fail-safe integration into safety circuits, simplifying compliance with machinery safety standards.
• Versatile Power Control: Capable of handling high loads (150 A) and designed for the rigorous demands of AC-3e/AC-3 switching of asynchronous motors.
• Simplified Installation: Features busbar main circuit connection for quick and robust power wiring, minimizing installation time in control panels.
• Reliable Operation: The electronic drive ensures consistent coil performance across the specified voltage tolerance, maximizing operational uptime and reducing coil burnouts.
• Compact & Robust: Part of the established Siemens SIRIUS modular system, offering a durable, long-life design (typically 10 million mechanical operating cycles).

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