Siemens 3RT1076-6XB46-0LA2: SIRIUS 500A 3-Pole Power Contactor Original Brand New

Overview

The Siemens 3RT1076-6XB46-0LA2 is a SIRIUS power contactor engineered for robust performance in demanding industrial applications, especially within railroad systems. It’s a key component in electrical control circuits, designed to switch high-power loads. With a powerful 500 A rating and a 250 kW capacity at 400 V, this 3-pole contactor is built for reliability.

It features an advanced electronic drive for precise control and includes two normally open (NO) and two normally closed (NC) auxiliary contacts for flexible circuit integration. The busbar connection for the main circuit and screw terminals for the control and auxiliary circuits simplify installation and wiring.

Key Features & Benefit

• High-Performance Switching: Rated at 500 A and 250 kW (at 400 V), it reliably switches heavy loads, making it ideal for high-current applications.
• Versatile Control: The electronic drive operates on 24 V DC with an extended range (0.7-1.25x Uc) and includes a PLC input for a wide range of DC voltages (24-110 V DC), ensuring compatibility with various control systems.
• Enhanced Reliability: Designed to meet the extended rated conditions for railroad applications according to IEC 60077, guaranteeing durability and safety in harsh environments.
• Flexible Integration: The 2 NO + 2 NC auxiliary contacts provide multiple options for signaling and interlocking with other components in a control system.
• Easy Installation: The busbar main circuit connection streamlines power wiring, while the screw terminals on the control and auxiliary circuits ensure a secure connection.

Function

The Siemens 3RT1076-6XB46-0LA2 functions as an electromagnetically operated switch. When the electronic drive coil is energized, it closes the main power contacts, allowing current to flow to the connected load. The auxiliary contacts simultaneously change state, providing feedback to the control system. This mechanism enables remote or automated control of high-power equipment like motors, heaters, and lighting systems. The electronic drive ensures efficient and reliable operation with lower power consumption and a wider voltage tolerance compared to traditional contactors.

Specification

• Product Number: 3RT1076-6XB46-0LA2
• Series: SIRIUS
• Rated Operational Current: 500 A (AC-3e/AC-3)
• Rated Power: 250 kW at 400 V
• Poles: 3
• Control Supply Voltage (Uc): 24 V DC (0.7 – 1.25x Uc)
• PLC Input Voltage: 24 – 110 V DC
• Auxiliary Contacts: 2 NO + 2 NC
• Drive Type: Electronic
• Main Circuit Connection: Busbar
• Control/Auxiliary Connection: Screw Terminal
• Standard: IEC 60077 (for railroad applications)

For more products like this, visit the Turll website.