What this MCB does and where it fits
Snaps onto standard DIN rail. Occupies 3 width units (roughly 54 mm of rail space) and installs at 55 mm depth — typical for SENTRON 5SQ modular devices. The neutral pole switching (marked as 3P+N) means you don't need a separate neutral link for the outgoing circuit; the breaker itself opens the neutral when tripped. IP20 rated, so it's intended for enclosed distribution boards or control cabinets, not for direct outdoor exposure.
Energy limiting class 3 means this breaker limits let-through energy well — useful for downstream equipment protection and for achieving selectivity with upstream devices.
