Product identity and compliance
The A9GSB550 is a Schneider Electric Acti9 SBI fuse-disconnector, 1N pole configuration, rated 50 A and 690 V AC, designed for 14 x 51 mm fuse links. It complies with IEC EN 60947-3, the standard for switch-disconnectors and fuse-combination units, ensuring a declared short-circuit making and breaking capacity under fault conditions.
This part is obsolete per the manufacturer's lifecycle record. No direct replacement is listed in the evidence.
Mounts on a 35 mm symmetrical DIN rail, occupying 3 x 9 mm pitches (26.5 mm width). Screw-clamp terminals accept 1 to 16 mm² rigid or 1 to 10 mm² flexible cable, with a tightening torque of 2.2 N·m. Wire strip length is 10 mm for both top and bottom connections.