ABB-V18345-1010121001

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January 06, 2026
Category Connection: ABB Positioner
Brief: In this dynamic video, we showcase the ABB S204-D40 Miniature Circuit Breaker in action. You'll see a detailed walkthrough of its 4-pole configuration for 3-phase + neutral circuits and learn how its D-type trip characteristic handles high inrush currents from motors and transformers. We demonstrate its thermal-magnetic protection mechanism and DIN rail mounting for industrial distribution systems.
Related Product Features:
  • 4-pole configuration protects 3-phase + neutral circuits (L1, L2, L3, N).
  • D-type trip characteristic is specifically designed for circuits with high inrush currents like motors and transformers.
  • 40A rated current provides standard protection for medium-power applications.
  • 6kA breaking capacity ensures safe operation in commercial and light industrial installations.
  • Thermal-magnetic protection combines overload and short-circuit protection mechanisms.
  • DIN rail mounting allows for easy integration on standard 35mm rails.
  • Complies with IEC/EN 60898-1 and IEC/EN 60947-2 standards with CE, CCC, and RoHS certifications.
  • Suitable for motor circuits, transformer protection, industrial equipment, and HVAC systems.
FAQs:
  • What is the key difference between the D-type and C-type ABB MCBs?
    The D-type trip characteristic is specifically designed for circuits with high inrush currents (10-20 times rated current), making it suitable for motors and transformers, while C-type is more appropriate for general lighting or socket circuits.
  • What applications is the ABB S204-D40 MCB best suited for?
    This 4-pole MCB is ideal for protecting 3-phase motors with high starting currents, distribution transformers, industrial equipment like CNC machines and compressors, commercial HID lighting systems, and HVAC systems.
  • What are the important installation considerations for the S204-D40?
    Key installation notes include proper cable sizing (6-10 mm² copper cable for 40A), mounting on standard 35mm DIN rail, ensuring proper terminal torque, and considering ambient temperature derating above 40°C. Also verify short-circuit coordination with upstream protective devices.
  • What is the breaking capacity and voltage rating of this circuit breaker?
    The ABB S204-D40 has a 6kA breaking capacity at 400V AC, with rated voltage of 230/400V AC and rated insulation voltage of 500V.
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