STM6LE-250 Residual Current Protection MCCB
STM6LE-250 electronic residual-current MCCB for AC400V distribution: 50A to 1250A, 4P, remote control, prepayment and bilingual display functions.

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- Typical production lead time: 20 working days
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STM6LE-250 electronic residual-current MCCB for AC400V distribution: 50A to 1250A, 4P, remote control, prepayment and bilingual display functions.
Overview
The STM6LE electronic residual-current MCCB combines AC400V protection with remote control, prepayment control and a Chinese/English display in the listed 4P configurations.
Key Features
- Electronic residual-current protection
- 4P (3P+N) construction for AC400V
- Remote control and prepaid control
- Chinese/English switchable display
Residual Current Operated Circuit Breaker STM6LE-250
| Parameter | 250 |
|---|---|
| Number of poles | 4P (3P+N) |
| Rated current (A) | 50A~125A / 100A~250A |
| Rated voltage (V) | AC400V |
| Rated insulation voltage (V) | AC1000V |
| Short-circuit breaking capacity Icu/Ics (kA) AC400V | 50/35 |
| Operating cycles ON (operations) | 1000 |
| Operating cycles OFF (operations) | 7000 |
| Overall dimensions b-a-ca (mm) | 240*142*138 |
| Product features | Motor-operated device (MD), Included, external operating handle, Included, automatic trip device, electronic type |
Typical Applications
- Distribution networks
- Safety-critical installations
- Remote unmanned sites
Frequently Asked Questions
What pole arrangement does the STM6LE use?
The STM6LE range uses a 4P configuration arranged as 3P plus neutral for AC400V distribution systems.
Which control functions are included in the listed configuration?
The product data lists remote control, prepayment control and a Chinese/English display, together with electronic residual-current protection.
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