63 A MCCB with ETU330 — line protection for high-fault panels
It carries a continuous current rating of 63 A across the full ambient range from 40 °C to 70 °C — no derating needed in a warm enclosure. The ETU330 electronic trip unit gives adjustable overload and short-circuit protection. Breaking capacity hits 440 kA at 415 V and 187 kA at 690 V — this breaker clears high-fault scenarios without cascading upstream. Ground-fault monitoring uses summation current sensing on L+N conductors, and the N-conductor protection is adjustable OFF or 100 %.
Dimensions are 86 mm deep, 140 mm wide, 181 mm tall. IP40 on the front suits enclosed distribution boards — not washdown zones.