ENMG / SURGE PROTECTION
VU1-I
Type 1 AC power surge protective devices
Type 1 surge protective devices for AC power distribution, illustrated by the official VU1-I series product photographs.
Request a quote ↗TECHNICAL DATA / VU1-I
Specifications & selection.
- T1 designation on the product labels.
- L1, L2, L3, N and protective-earth terminal markings shown.
- Multiple impulse-current model labels; select by the confirmed technical sheet.
| Parameter | VU1-I12.5 photograph | VU1-I25 photograph | VU1-I50 photograph |
|---|---|---|---|
| Uc / frequency | 420 VAC / 50/60 Hz | 420 VAC / 50/60 Hz | 420 VAC / 50/60 Hz |
| Iimp, 10/350 μs | 12.5 kA | 25 kA | Label appears 12.5 kA, inconsistent with model — confirm |
| In, 8/20 μs | 50 kA | 50 kA | 50 kA |
| Up | ≤2.4 kV | ≤2.4 kV | ≤2.4 kV |
| Enclosure marking | IP20 | IP20 | IP20 |
Selection & installation notes
- The source provides photographs rather than a complete selection table. Label values are not evidence that all variants share the same electrical rating.
- The I50 photograph appears to repeat 12.5 kA in its Iimp line. Do not infer 50 kA impulse capability from the model number.
- Request the exact datasheet, certification/test report, system-earthing compatibility, backup protection and short-circuit coordination before selection.
- Complete dimensions, conductor range, torque, mounting method and environmental conditions are not specified in the page text. Confirm the installation drawing.
- Installation requires supply isolation and the wiring/protection arrangement specified for the exact device.
Based on the official Chinese product page and selection charts ↗. Checked 2026-09-15. Confirm the current specification for the exact model when ordering.
TECHNICAL RESOURCES
Plan your integration.
ENMG electrical accessories — English product-family brochure.
This is a product-family brochure. Request a model-specific datasheet and installation drawing with your inquiry.