STM7LE-250 Residual Current Protection MCCB
STM7LE-250 electronic residual-current MCCB for AC400V networks, covering 50A to 800A in 4P configurations with communication, metering and prepayment functions.
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STM7LE-250 electronic residual-current MCCB for AC400V networks, covering 50A to 800A in 4P configurations with communication, metering and prepayment functions.
Overview
The STM7LE electronic residual-current MCCB combines protection with communication, metering and prepayment functions for AC400V distribution in the listed 4P configurations.
Key Features
- Electronic residual-current protection
- Communication, metering and prepaid control
- 4P (3P+N) construction for AC400V
- 50A to 800A across 250A, 400/630A and 800A frames
Residual Current Operated Circuit Breaker STM7LE-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) | 165*140*131 |
| Product features | Automatic trip device, electronic type |
Typical Applications
- Distribution networks
- Safety-critical installations
- Remote unmanned sites
Frequently Asked Questions
What range does the STM7LE-250 family cover?
It covers rated currents from 50A to 800A across 250A, 400/630A and 800A frames, using a 4P 3P-plus-neutral arrangement.
Which smart functions are listed for STM7LE?
The product data lists communication, metering and prepayment functions alongside electronic residual-current protection.
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