Breaking capacity and motor sizing
Rated breaking capacity reaches 100 kA at 240 V AC, 50 kA at 400 V, and 5 kA at 690 V. For motor sizing, the breaker covers 10 hp at 230 V, 20 hp at 220/230 V, 40 hp at 460/480 V, and 50 hp at 575/600 V — spanning NEMA frame sizes from small pumps up to 50 hp conveyors on 480 V lines.
Mounts in any position. The 90 mm width and 165 mm height fit standard MCC buckets or subpanels. Depth is 176 mm — verify enclosure depth if a gland plate or rear duct is tight.
Environmental and wiring
Solid or stranded wire: 2x (2.5…16 mm²) for the main circuit, or 1x (10…70 mm²) for larger feeds. The screw terminals accept up to 50 mm² stranded — common for 50 A branch circuits.
For current pricing and availability, submit an RFQ — confirmation and lead time are provided at quote time. No formal successor has been announced; the 3RV2 series remains the active SIRIUS motor-protection platform.