The Mitsubishi CP30BA is a single-pole circuit protector rated for 2500 A continuous at 250 V, using a magnetic trip system. That 2500 A rating is not a typo — it is a high-current DC or AC power distribution device, sized for main feeder or bus-bar protection rather than branch circuits. The magnetic trip responds to short-circuit events with no thermal delay, so it is suited for applications where nuisance tripping from inrush must be avoided.
Breaking capacity and insulation coordination
Ultimate breaking capacity Icu is 2.5 kA at 220 V AC — adequate for most industrial distribution panels where the upstream transformer or feeder breaker limits fault current below that level. On a 250 V DC system, the 125 V DC insulation rating means you need to verify the DC voltage does not exceed that limit, or the part is not suitable.
Mounts on standard IEC 35 mm rail — snaps into any DIN-rail panel without drilling. The single-pole form factor means it occupies one module width, leaving space for additional poles or other devices on the same rail.