3RW4074-6BB44 Siemens Soft Starter Industrial Motor Starter

Siemens SIRIUS Soft Starter 3RW4074-6BB44 Overview

Technical Specifications

• Brand: Siemens SIRIUS industrial motor control equipment.
• Model: 3RW4074-6BB44 soft starter.
• Rated operational current reaches 280 A at 40 °C ambient temperature.
• Motor power rating supports 160 kW at 400 V.
• Operating voltage range spans 200 to 460 V AC systems.
• Operating frequency range supports 50 to 60 Hz networks.
• Control supply voltage requires 230 V AC at 50 or 60 Hz.
• Minimum load requirement equals 20 percent rated motor current.
• Continuous operating capability reaches 115 percent rated current.
• Typical power loss during operation remains approximately 90 W.
• Operating temperature range extends from −25 °C to +60 °C.
• Protection class rated IP00 for panel installation.

Mechanical Design

• Width measures 160 mm allowing compact cabinet arrangement.
• Height measures 230 mm for standard panel mounting.
• Depth measures 278 mm providing sufficient wiring space.
• Recommended clearance equals 100 mm above for ventilation.
• Side clearance requirement equals 5 mm between units.
• Maximum motor cable length reaches 300 meters.

Installation Guidelines

• Mount the unit vertically to maintain optimal cooling airflow.
• Follow recommended spacing requirements for safe thermal performance.
• Use proper cable cross-section according to rated current values.
• Connect auxiliary control supply before energizing main circuit.
• Verify overload protection setting before first operation.

Environmental Conditions

• Operating altitude supports installations up to 5000 meters.
• Storage temperature range extends from −40 °C to +80 °C.
• Industrial design resists vibration and harsh environments.
• Device prevents condensation during normal operation.

FAQ

• Q: Is the product new and original?
  A: Yes, we supply brand new original Siemens equipment.
• Q: Do you have stock available?
  A: Yes, this model remains available in inventory.
• Q: What motor size does it support?
  A: It supports up to 160 kW at 400 V motors.
• Q: What voltage range does the starter accept?
  A: The unit operates from 200 to 460 V AC.
• Q: What shipping methods do you use?
  A: We ship via DHL, UPS, and FedEx.
• Q: Do you accept returns?
  A: Yes, returns remain accepted within 30 days.

Contact Information Inquiries: sales@nex-auto.com , +86 153 9242 9628

Partner NexAuto Technology Limited : https://www.nex-auto.com/