125 A MCCB with 75.6 kA interrupting capacity
Its interrupting capacity reaches 75.6 kA at 240 V and 52.5 kA at 415 V — figures that cover most industrial fault-current scenarios downstream of a transformer. The 125 A rating holds flat from 40 °C through 50 °C, then derates gradually to 114 A at 70 °C. That thermal curve means the breaker doesn't force a derating penalty in a warm panel until the ambient passes 50 °C — a real advantage for enclosed switchgear.
Rated insulation voltage 800 V, maximum power loss 30.6 W. The 30.6 W dissipation is a factor when calculating enclosure thermal rise — at full load this breaker contributes roughly the heat of a small incandescent lamp inside the cabinet. This is a plain line-protection MCCB — no integrated metering or GFCI module.
The wide storage range covers unheated warehouses and container transit.