Standard, trial-order and OEM quantities can be reviewed separately.
Miniature Circuit Breaker
WCZ Miniature Circuit Breaker
Where the other MCB series stop at 100A, this one starts at 80A and runs to 125A on a 10kA breaking capacity — the range used on incomers and sub-main circuits rather than final circuits.
Technical overview
Core specifications
Rated current In80, 100, 125A
Poles1P, 2P, 3P, 4P
Breaking capacity10kA
Trip characteristicB, C, D
Rated voltage Ue (AC)400V
Insulation voltage Ui500V
Impulse withstand Uimp6kV
Terminal capacity50mm²
Thermal trip benchmark temperature30°C
Ambient temperature-5 to +40°C; 24-hour average not above +35°C
Pollution degree2
Installation categoryII, III
Contact indicationRed / green contact position indicator
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Commercial & documentation
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Technical files
Datasheet, dimensions and certificate scope
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PDF · Product datasheet DWG/PDF · Dimensions & installation PDF · Certificate scope
Request Technical Files Typical use
- Incoming supply protection
- Sub-main distribution
- Higher-current commercial circuits
Compliance references
- IEC / EN 60898-1
- CB · SEMKO · CE · UKCA
Customisation scope
- Brand marking
- Pole configuration
- Packaging
Related products
Other products supplied for the same installations.
Miniature Circuit Breaker
WCC Miniature Circuit Breaker
Entry breaking capacity for domestic and light-commercial final circuits, where the prospective fault current at the board stays low. Same modular format and same B/C/D curve choice as the 6kA and 10kA ranges.
View specifications →
Miniature Circuit Breaker
WCA Miniature Circuit Breaker
The 6kA range covers most residential and light-commercial work, and it carries the widest certificate coverage of the four MCB series — CB, SEMKO, CE and UKCA are all held against it.
View specifications →
Miniature Circuit Breaker
WCB Miniature Circuit Breaker
Where fault levels run higher — commercial boards, supplies close to the transformer — this is the 10kA version of the same modular format, with a 20,000-operation mechanical life.
View specifications →Technical & sales support
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