Product details
Siemens 3RW4423-1BC44 SIRIUS Soft Starter
The Siemens SIRIUS 3RW4423-1BC44 soft starter ensures reliable motor control with advanced inside-delta operation. It delivers strong performance, compact design, and smooth acceleration for industrial systems. Author: Powergear X Automation.
Key Highlights
- Rated current: 36 A at 40°C, 18.5 kW at 400V.
- Inside-delta mode: 62 A, up to 30 kW at 400V.
- Wide input voltage: 200–460 V AC; Control: 230 V AC.
- Supports motor overload and thermal resistor protection.
- Adjustable current limit and external reset for precise control.
Technical Features
- Operating frequency: 50–60 Hz with ±10% tolerance.
- Power loss: only 10 W during operation.
- Continuous current: 115% at 40°C.
- Ambient temperature: -25°C to +60°C; Storage: -25°C to +80°C.
- Maximum cable length: 500 m; Altitude: up to 5,000 m.
- Protection class: IP00.
Mechanical Design
- Dimensions: 170 mm (W) × 192 mm (H) × 270 mm (D).
- Mounting: screw fixing, vertical position ±90° rotatable.
- Clearances: top 100 mm, bottom 75 mm, sides 5 mm.
- Terminal type: box terminals for main, screw-type for control.
- Auxiliary contacts: 3 NO, 1 changeover contact.
Performance Ratings
- Standard circuit: 10 hp at 230 V, 20 hp at 460 V.
- Inside-delta circuit: up to 40 hp at 460 V.
- Low minimum load: only 8% of IM.
- Display type: integrated fault display for quick diagnostics.
Installation & Connection
- Supports solid wires 2.5–16 mm² and stranded 4–70 mm².
- AWG compatibility: 10 to 2/0 single, 2x 10 to 1/0 double.
- Supports fine-stranded cables with or without ferrules.
- Fast setup and wiring for industrial panels and automation systems.
Package & Delivery
- Includes 1 × Siemens SIRIUS 3RW4423-1BC44 soft starter.
- Includes mounting accessories and quick installation manual.
- 12-month warranty from Powergear X Automation.
- Worldwide shipping by FedEx, UPS, or DHL.
FAQ
- Q: Can the 3RW4423-1BC44 be used for high-inertia loads?
A: Yes, it handles pumps, fans, and compressors with precise ramp-up control. - Q: Does it support thermal motor protection?
A: Yes, it supports evaluation of thermal resistors for enhanced motor safety. - Q: What is the difference between standard and inside-delta circuits?
A: Inside-delta allows higher power output with smaller wiring and reduced heat loss. - Q: How much clearance is required during installation?
A: Maintain 100 mm top, 75 mm bottom, and 5 mm side spacing. - Q: What’s the typical use case for this model?
A: It’s ideal for HVAC, conveyor, and pump systems requiring smooth starts.
Contact Information
- Email: sales@powergearx.com
- WhatsApp: +86 18030005825
Copyright © 2025 Powergear X Automation Limited. All rights reserved.
Original Source: https://www.powergearx.com/
Partner: Ubest Automation Limited
There are no reviews yet.