What this 2-pole C-curve 32 A MCB does on the rail
Breaking capacity is 4.5 kA per EN 60898 at 400 V AC, and 5 kA per IEC 60947-2 — enough for most domestic and light commercial distribution boards where the prospective fault current stays under that threshold. The 400 V AC rated supply voltage (440 V max multi-phase) covers standard three-phase line-to-line feeds in European-style panels.
Sealable with a lead seal (provision built in) for tamper-evident metering or critical circuits. Degree of pollution 2 and overvoltage category III are standard for fixed-installation distribution boards.
Power loss and thermal consideration
Each pole dissipates 3.1 W in hot operating state at rated current. For a 2-pole breaker that's 6.2 W total — negligible in a ventilated enclosure, but worth checking if the breaker is packed tight with other heat sources in a sealed box.