What this SIRIUS breaker brings to the panel
The 3RV2011-0FA25-ZX95: Breaking capacity is a flat 100 kA across the entire voltage range from 240 V to 690 V AC. That means this breaker can interrupt a fault up to 100 kA at any of those voltages without welding or cascading upstream — a high-fault rating for a 0.5 A device, which makes it suitable for panels with large upstream transformers or stiff utility feeds. Termination is spring-type (cage clamp), which shaves a few seconds per wire compared to screw terminals on a crowded DIN rail. The S00 frame is 45 mm wide and snaps onto standard 35 mm DIN rail per DIN EN 60715, so it fits the same footprint as other SIRIUS S00 breakers and contactors.
How it compares to the 3RV2011-0BA20
The closest functional sibling is the 3RV2011-0BA20, which shares the same S00 frame, CLASS 10 trip class, and 100 kA breaking capacity. The key difference is the current range: the -0BA20 is adjustable from 0.14 to 0.2 A with a 2.6 A short-circuit release, while the -0FA25-ZX95 covers 0.35 to 0.5 A with a 6.5 A release. Both use the same mounting footprint and DIN rail clip, so swapping one for the other in a panel requires no drilling or re-termination — just match the motor FLA to the breaker's adjustment range. The -0FA25-ZX95 also ships with spring-type terminals and integrated 1 NO + 1 NC auxiliary switches, whereas the -0BA20 uses screw terminals and has no auxiliary contacts built in.
Panel integration notes
Snaps onto 35 mm DIN rail per DIN EN 60715. The S00 frame is 45 mm wide, 97 mm deep, and 106 mm tall. Allow 50 mm clearance above and below for wiring and 30 mm to the side for heat dissipation. Spring-type terminals accept 2 × (0.5 to 4 mm²) solid or stranded wire. The handle provides a visible break position for lockout/tagout.