Siemens SIRIUS 3RT1055-2AT36 Power Contactor, Size S6, 150A, 75kW (400V), 575-600V AC/DC Coil, Spring-Loaded Terminals Original Brand New

Overview

Siemens 3RT1055-2AT36 SIRIUS Power Contactor The Siemens 3RT1055-2AT36 is a high-performance, 3-pole SIRIUS power contactor (Size S6) engineered for switching motors and industrial loads up to $75\text{ kW}$ at $400\text{ V}$ (AC-3e/AC-3 rated). This model features a robust current rating of $150\text{ A}$ and is driven by a conventional control circuit with a wide operating voltage of $575-600\text{ V}$ AC or DC (Uc: $575-600\text{ V}$). Designed for demanding applications, it ensures reliable operation and is part of the widely trusted SIRIUS modular system for industrial controls.

Key Features / Function

• Product Number: 3RT1055-2AT36
• Type: Power Contactor (SIRIUS 3RT1)
• Poles: 3-pole for main circuit switching.
• Size: S6
• Current Rating (AC-3e/AC-3): $150\text{ A}$
• Motor Power Rating: $75\text{ kW}$ at $400\text{ V}$ AC
• Control Coil Voltage (Uc): $575-600\text{ V}$ AC (50-60 Hz) / DC operation (Conventional Drive).
• Auxiliary Contacts: Integrated 2 Normally Open (NO) and 2 Normally Closed (NC) contacts for signaling and interlocking.
• Main Circuit Connection: Busbar connection, offering robust and compact power distribution.
• Control and Auxiliary Circuit Connection: Fast, reliable spring-loaded terminals, minimizing wiring time and ensuring vibration-proof connections.
• Application: Ideal for motor switching, controlling resistive loads, and general switching duties in industrial automation systems.

Benefit

• High Performance and Reliability: Rated for $150\text{ A}$ and $75\text{ kW}$ motor switching, providing dependable control for large industrial machines.
• Universal Control: The $575-600\text{ V}$ AC/DC wide-range coil allows for flexible use in various power systems and simplifies inventory.
• Time-Saving Wiring: Spring-loaded terminals on the control and auxiliary circuits offer quick, maintenance-free, and secure wiring connections, reducing installation labor.
• Space-Efficient Design: Part of the compact SIRIUS modular system, facilitating high-density panel design.
• Comprehensive Monitoring: Built-in $2\text{ NO}+2\text{ NC}$ auxiliary contacts offer immediate status feedback for complex control circuits.

Specification

• Product Brand: SIRIUS
• Contactor Size: S6
• Insulation Voltage: Up to $1000\text{ V}$
• Standards Compliance: IEC 60947, EN 60947
• Operating Ambient Temperature: $-25\text{ °C}$ to $+60\text{ °C}$ (typical)

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