Siemens Sirius 3RT2 Contactor, 2NO+2NC, 3-pole, 175-280V coil, 95A, 45kW, 1kV Part number 3RT2046-1NP34

Product Overview

The Siemens SIRIUS power contactor (SKU: 3RT2046-1NP34) is a 3-pole AC-3 rated contactor designed for reliable motor switching applications up to 45 kW at 400 V. It features an integrated varistor for coil suppression, comes with auxiliary contacts (2 NO + 2 NC), and supports both AC and DC operation. Built for durability, it offers high performance in industrial control systems requiring frequent switching operations.

Key Features

• 3-pole power contactor for motor and resistive load switching
• Rated operational current: 95 A (AC-3/400 V)
• Motor switching capacity: up to 45 kW at 400 V
• Control voltage range: 175–280 V AC/DC, 50/60 Hz
• Includes integrated surge suppressor (varistor)
• Equipped with 2 NO + 2 NC auxiliary contacts
• High mechanical endurance and reliable performance

Technical Specifications

• Product Type: Power Contactor
• Series: SIRIUS 3RT2
• Article Number: 3RT2046-1NP34
• Main Circuit Poles: 3
• Rated Operational Voltage: 400 V AC
• Rated Operational Current (AC-3/400 V): 95 A
• Rated Power (AC-3/400 V): 45 kW
• Control Supply Voltage: 175–280 V AC/DC
• Insulation Voltage (Ui): 1000 V
• Rated Impulse Withstand Voltage (Uimp): 8 kV
• Mechanical Service Life: 10 million operating cycles
• Protection Rating: IP20 (front)
• Mounting Type: Screw terminal connections
• Operating Temperature Range: –25 °C to +60 °C
• Storage Temperature Range: –55 °C to +80 °C
• Installation Altitude: Up to 2,000 m

Compliance & Certifications

• Meets IEC and EN standards for industrial contactors
• CE marked and RoHS compliant

Applications

Ideal for industrial and commercial automation systems, the Siemens 3RT2046-1NP34 is designed for controlling and switching three-phase motors, compressors, conveyors, and HVAC systems. It ensures reliable performance, long service life, and consistent operation even under demanding load conditions.