The ABB 1SDA060323R1 is a T6L molded case circuit breaker rated 800 A in a three-pole configuration with LS (long-time and short-time) electronic trip protection. The T6L frame is ABB's high-interrupting series for industrial distribution and motor branch circuits, sized for main or feeder duty in switchboards and panelboards. The LS trip curve gives you adjustable long-time delay and short-time pickup — selectivity with downstream breakers is the design target, not just cable protection.
The LS trip unit gives you adjustable long-time pickup (Ir) from 0.4 to 1.0× In and short-time pickup (Isd) with adjustable delay, so you coordinate with downstream 200–600 A feeders. Three-pole construction covers three-phase systems up to 690 VAC.
Deployment context
Bolts into a switchboard or panelboard bus — the T6L frame uses a standard rear-connection pattern for ABB's Power Break or SACE panelboards. No DIN-rail mounting; this is a fixed-mount breaker for distribution mains or large feeder circuits. IP20 finger-safe terminals are standard; add shrouds if the panel layout puts live parts near the gland plate.