3RW4423-1BC44 Siemens SIRIUS Soft Starter 36A 30kW

Siemens Sirius 3RW4423-1BC44 Soft Starter – High-Feature Motor Control

Key Technical Specifications

• Brand & Model: Siemens SIRIUS 3RW4423-1BC44 – high-feature soft starter.
• Rated operating voltage (standard / inside-delta): 200 … 460 V AC, tolerance -15% / +10%.
• Operating frequency range: 50 … 60 Hz (±10% tolerance).
• Minimum load capacity: 8% of motor rated current I_M.
• Adjustable motor rated current for protection: from 7 A minimum.
• Continuous overload capacity: 115% of I_e at 40°C.
• Control supply voltage: 230 V AC (50/60 Hz) with -15%/+10% tolerance.
• Ambient temperature range: operation up to 60°C; storage -25°C … +80°C.
• Derating threshold at 40°C: ensure sufficient cooling above this value.
• Protection class: IP00 – suitable for installation inside a control cabinet.
• Installation altitude: up to 5,000 m above sea level.
• Maximum cable length between soft starter and motor: 500 meters.
• Auxiliary contacts: 3 NO + 1 changeover (CO). Zero NC contacts.
• Fault signal display: built-in visual display for diagnostics.

Frequently Asked Questions (FAQ)

Q1: Is the Siemens 3RW4423-1BC44 brand new and original?
A: Yes, we supply only 100% genuine, brand new, original Siemens SIRIUS soft starters. No counterfeits or used units.

Q2: What is the stock availability for this model?
A: We have 3RW4423-1BC44 in stock for immediate dispatch. Large quantities available upon request.

Q3: How long does delivery take and which couriers do you use?
A: We use DHL, FedEx, and UPS. Delivery typically takes 3-7 working days depending on destination.

Q4: Can I use inside-delta wiring with any motor?
A: Inside-delta circuit requires motor windings accessible as six terminals. Check motor nameplate compatibility. 3RW4423-1BC44 supports this feature perfectly.

Q5: Do I need external overload relay?
A: No, the soft starter integrates electronic motor overload protection with PTC sensor evaluation. External reset also available.

Q6: What is the maximum ambient temperature for full rated current?
A: Full rating at 36 A (standard) or 62 A (inside-delta) applies up to 40°C. At 50°C, currents drop to 32 A / 55 A respectively. Refer to spec table.

Q7: Does this model support 30-day return?
A: Yes, we accept returns within 30 days from delivery. The product must be unused and in original packing.

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

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