It serves as the load-break and isolation point in a distribution or motor feeder circuit, making and breaking current under load per IEC 60947-3. The 200 A rating at 400 V AC-23B (160 A at 690 V with terminal cover) covers motor and resistive loads up to 100 kW at 400 V or 150 kW at 690 V in AC-23 duty.
Rated operational current of 200 A at 400 V AC-23B means this body handles the high inrush of motor starting (typically 6–8× FLA) and breaks the load under normal running conditions — it is not a simple disconnect; it is rated for switching duty. Short-circuit withstand of 80 kA (with associated BS fuses) means the body survives a through-fault while the fuse clears it — critical for selective coordination in a panel. Making capacity of 2000 A at 400 V AC-23B covers the peak inrush when closing onto a motor load. The 4-pole configuration (3 phases + neutral or switched neutral) suits three-phase distribution panels where the neutral must be isolated. Mounting on plate or rail (DIN) gives flexibility for enclosure layout. IP20 with terminal cover is touch-safe but not washdown-rated — this lives inside a cabinet, not on the machine face.
Designed and tested to IEC 60269-1 (fuse requirements), IEC 60269-2 (fuse for industrial applications), and IEC 60947-3 (switch-disconnectors). The body and fuse cover pass glow-wire tests at 960 °C and 850 °C respectively per IEC 60695-2-1. Protective treatment TH indicates suitability for tropical/humid environments. Rated insulation voltage Ui of 750 V AC and impulse withstand Uimp of 8 kV give headroom for 690 V systems.