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.
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.