ABB 1SDA072502R1 E4.2S 3200 Ekip Dip LSI 3p WMP 85kA Air Circuit Breaker

The ABB 1SDA072502R1 is the withdrawable moving part (WMP) of a SACE Emax 2 E4.2S 3200 Ekip Dip LSI 3p air circuit breaker, the selective (S-class) variant of the E4.2 frame, between N and H performance levels, 3-pole. Rated 3200 A (Iu) and 85 kA Icu at 400 V AC, it carries an electronic Ekip Dip LSI release for overload (L), short-time delayed (S) and instantaneous (I) short-circuit protection; a separate fixed part (cradle) is required for installation.

Technical Specifications

Selection Notes

The Ekip Dip LSI release adds S (short-time delay) to overload and instantaneous protection, letting the short-time delay be coordinated with downstream breakers instead of tripping instantaneously on every fault. The S performance class sits between the N-class (66 kA Icu) and H-class (100 kA Icu) siblings, giving 85 kA Icu at 400 V with a 66 kA/1 s Icw suited to selective coordination with downstream breakers. At 3200 A rated current, this is the 3200 A variant of the E4.2 frame — the frame's 4000 A sibling is the lower-current option where full 3200 A continuous loading is not required. This order code is the draw-out moving part only: it needs a matching fixed part (cradle) already installed, which makes it the correct choice for replacing a worn breaker body or equipping a double-breaker (one cradle, two moving parts) arrangement rather than a first-time installation. In the 3-pole configuration, this unit suits a 3-wire distribution; choose the 4p sibling instead for a neutral-switching circuit.