32 A C-curve 3-pole MCB — SENTRON 5SN6332-7CN
Rated for 400 V AC phase-to-phase with a maximum of 440 V AC in multi-phase operation, this breaker fits standard European 230/400 V TN and IT systems. The 50/60 Hz frequency range covers both mains standards without derating.
Footprint and panel integration
The 5SN6332-7CN occupies 3 modular width units (54 mm) on a DIN rail, with a depth of 76 mm and height of 90 mm — the standard SENTRON 5SN6-series envelope. Installation depth is 70 mm from the rail to the front face, leaving clearance for wiring and accessory snap-on modules. The terminal accepts solid conductors up to 25 mm², which is generous for a 32 A breaker — allows feeding through larger tails or paralleling downstream circuits without a separate distribution block.
Lifecycle and procurement
The part carries touch protection on the terminals and is sealable — relevant for metering or utility-locked panels where tamper evidence is required. Halogen-free and silicon-free construction simplifies disposal compliance and avoids contamination in clean-room or coating-oven environments. At 32 A, three poles dissipate roughly 11 W total, manageable in standard steel enclosures with natural convection.
Environmental and compliance range
The neutral conductor is not switched (3-pole only, no switched neutral), so this breaker is intended for three-phase loads or three-phase distribution where the neutral is bonded separately in the panel.