Powerful Sirius 3RW4426 Soft Starter for Smooth Motor Control

This SIRIUS 3RW4426-1BC44 soft starter is designed for high-performance motor control. It ensures smooth acceleration and deceleration, protecting your equipment from damage. Perfect for industrial applications, it reduces mechanical stress and extends motor life.

Key Features

• Inside-Delta Circuit for higher power applications
• Motor Overload Protection with adjustable current limits
• Integrated Bridging Contact for energy saving
• External reset and thermal motor protection
• Compact design with easy screw terminal installation

Technical Specifications

• Brand: Siemens SIRIUS
• Model: 3RW4426-1BC44 (Complete suffix)
• Rated Current: 77A at 40°C (Standard), 133A (Inside-Delta)
• Power Range: 37kW to 75kW (400V)
• Voltage: 200-460V AC, 50/60Hz
• Control Voltage: 230V AC
• Operating Temp: Up to 60°C
• Protection: IP00
• Dimensions: 170x192x270mm (WxHxD)

Installation Guide

Mount vertically with +/-90° rotation capability. Maintain clearance: 100mm above, 5mm sides, 75mm below. Use proper cable sizes (2.5-70mm²). Maximum installation height: 5000m.

Compatibility

Works with three-phase squirrel cage motors and servomotors. Supports standard and inside-delta wiring. Compatible with 200-460V AC systems.

Certification & Warranty

UL/CSA certified. Includes 12-month warranty from shipment date.

Shipping & Packaging

Unit comes with standard packaging. We ship via FedEx, UPS, DHL for fast delivery.

Note: Always follow local electrical codes during installation.

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Original Source: https://www.ubestplc.com/
Contact: sales@ubestplc.com | +86180 3000 5825