Standard, trial-order and OEM quantities can be reviewed separately.
Main Switch
WSM-250 Main Switch
Three-pole 250A isolation for the top end of the range — commercial boards and sub-mains where a modular 125A incomer is no longer enough.
Technical overview
Core specifications
Rated current250A
Poles3P
Rated voltage230 / 400V
Electrical life10,000 cycles
Mechanical life10,000 operations
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Commercial & documentation
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Technical files
Datasheet, dimensions and certificate scope
Technical files are supplied against the selected model so ratings, dimensions and compliance scope remain clear.
PDF · Product datasheet DWG/PDF · Dimensions & installation PDF · Certificate scope
Request Technical Files Typical use
- Commercial board incomers
- Sub-main isolation
- Panel builder assemblies
Compliance references
- BS EN 60947-3
- Covered-model schedule available on request
Customisation scope
- Brand marking
- Packaging
- Technical literature
Related products
Other products supplied for the same installations.
Main Switch
WSM-125 Main Switch
Incomer isolation at 100A or 125A in one to four poles. CB, SEMKO, CE and UKCA certificates are held against this range.
View specifications →
Main Switch
WSM-125D Main Switch
Same 100A/125A duty as the WSM-125, but with a double wiring terminal — useful where an outgoing tail has to be taken off the incomer without a separate connector block.
View specifications →
Main Switch
WSM-100 Main Switch
A 100A-only isolator range in one to four poles, for boards where the incomer is fixed at 100A and the wider 125A selection is not needed.
View specifications →Technical & sales support
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