Description
The WM1E is an electronic moulded case circuit breaker for AC 50 Hz networks rated 400 V and up to 800 A, with a rated insulation voltage of 800 V. Its electronic trip unit provides adjustable, accurate protection, which helps coordinate selectivity where several breakers are connected in series.
Protection functions
- Overload long-time inverse-time protection.
- Short-circuit short-time inverse-time and definite-time protection.
- Short-circuit instantaneous and under-voltage protection.
- Selected models (for example the ZLM32LRE) also protect against electric shock and equipment leakage.
Where it fits
- Distribution boards that need adjustable, selective protection.
- Motor and industrial control circuits.
- Systems where earth-fault fire risk must be limited.
Selection and ordering
Confirm the system voltage (up to 400 V), the load current, the protection settings you need and whether residual current protection is required. We will confirm the correct electronic trip configuration and provide a quotation.
FAQ
What is the advantage of an electronic MCCB?
The electronic trip unit gives accurate, adjustable protection, including overload long-time and short-circuit short-time settings, which helps coordinate selectivity in multi-breaker systems.
Which model includes earth-leakage protection?
The ZLM32LRE model within the WM1E range also protects against electric shock and equipment leakage.
Can it be used for motor starting?
Yes. Under normal conditions it serves for infrequent switching and infrequent motor starting within its ratings.
Request Quote
Tell us your specifications, quantity, or application scenario and we will reply with a tailored quote.
