Siemens 3RT1076-6LA06 Power Contactor 500A, AC-3, 250kW, 3-Pole, 2 NO + 2 NC Original Brand New

Overview

The Siemens 3RT1076-6LA06 is a robust power contactor designed for industrial applications requiring reliable switching of high-current AC loads. Engineered for efficiency and durability, it supports AC-3e/AC-3 operations up to 500 A and 250 kW at 400 V. This 3-pole contactor comes without an operating mechanism and features 2 NO + 2 NC auxiliary contacts, making it versatile for various control systems.

Key Features & Technical Specification

• Product Number: 3RT1076-6LA06

• Contactor Type: Power Contactor (3RT1 SIRIUS series)

• Poles: 3-pole

• Rated Operational Current (AC-3e/AC-3): 500 A

• Rated Power (400V): 250 kW

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

• Main Circuit Connection: Busbar

• Control/Auxiliary Circuit Connection: Screw Terminal

• Configuration: Supplied without operating mechanism (requires separate coil/drive)

Benefit

• High Switching Capacity: Excellent for managing high-current, high-power loads (up to 500A/250kW).
• Robust & Durable: Part of the reliable Siemens SIRIUS line, ensuring long service life in harsh industrial environments.
• Flexible Integration: Supplied without the operating mechanism, offering flexibility for specific drive or coil requirements
• Clear Wiring: Features a busbar connection for the main power circuit, facilitating clean and high-capacity main power connections, and screw terminals for secure control wiring.
• Integrated Control: Standard 2 NO + 2 NC auxiliary contacts simplify control panel design and status monitoring.

Function

The primary function of the 3RT1076-6LA06 is to safely and remotely switch large power circuits on and off, particularly for three-phase AC motors. The AC-3e/AC-3 rating ensures optimal performance and longevity for switching squirrel-cage motors during normal operation. The included auxiliary contacts (2 NO + 2 NC) provide crucial feedback and interlocking capabilities for the control circuitry.

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