The C080B3WM: Rated 800 A at 50 °C, it carries a 200 kA Icu at 415 V AC — that is the maximum short-circuit current it can safely interrupt at that voltage without damage. At 690 V AC the Icu is 75 kA, still a high-fault rating for industrial distribution. This is a basic frame only — no protection relay or control unit is included. The buyer must specify a separate trip unit (Micrologic 2.0/5.0/6.0 series) to set the protection curves. The frame provides the mechanical isolation and short-circuit path; the trip unit provides the intelligence.
Drawout (withdrawable) mounting on a backplate with 70 mm connection pitch. The 236 mm width and 260 mm height fit standard ComPacT switchboard cubicle cutouts. IP40 front face, IK07 impact resistance — suitable for enclosed distribution panels where accidental tool contact is possible. Class II insulation on the front face — no protective earth connection required on the operator-facing side. Overvoltage category III suits fixed-installation distribution downstream of the main incoming supply.
Electrical durability: 2000 cycles at 690 V at rated current, 3000 cycles at half-rated current. Mechanical durability: 10,000 cycles. Rated insulation voltage 800 V AC, impulse withstand 8 kV. Short-time withstand (Icw) 19.2 kA for 1 second, important for selective coordination studies. Integral instant protection rated at 40 kA — this is the frame's inherent magnetic-only instantaneous trip threshold before any electronic trip unit is installed. It prevents damage during high-current faults even without a control unit.