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The Heavy Duty IP44 16 Amp CEE Extension Lead features a robust 2.5mm² cable, ideal for outdoor use in wet conditions. Available in lengths from 5 to 50 metres, it provides reliable power for caravans, motorhomes, and other heavy-duty applications. Perfect for extending your power supply safely and efficiently. Full Details
Heavy-duty performance in a compact cable. Tested, certified, and trusted by professionals.
Built for real-world use in construction, outdoor, and workshop environments. This HDIUK 16A CEE extension lead is assembled in Hampshire using 2.5 mm² arctic-grade cable and fully tested to meet professional safety standards.
This high-quality extension lead provides a reliable and safe power connection for workshops, events, and off-grid applications. Crafted in the UK with precision and care, each lead is tested and labelled with a unique serial ID for traceability.
Short runs (under 20m) can safely carry 16A. For longer runs, voltage drop becomes significant. Below is a guidance table showing safe operating loads based on length:
| Length | Recommended Constant Load |
Peak Load (10–15 mins) |
Voltage Drop Estimate | Status |
|---|---|---|---|---|
| 10m | 16A | 20A | ~2.3V (1.0%) | ✅ Excellent |
| 20m | 16A | 18A | ~4.6V (2.0%) | ✅ Acceptable |
| 30m | 10A | 16A | ~6.9V (3.0%) | ⚠️ Load Reduced |
| 40m | 8A | 12A | ~9.2V (4.0%) | ⚠️ Load Reduced |
| 50m | 6–7A | 10–12A | ~11.5V (5.0%) | ⚠️ Max Drop Limit |
Figures based on 230V nominal supply and BS 7671 5% voltage drop threshold (11.5V). For heavier loads over 30m, use our 4mm² Ultra Heavy Duty version.
Trust HDIUK for high-quality, safe, and professionally tested power solutions.
Order your 2.5mm² 16A Extension Lead today – built in the UK, tested for safety, and backed by experience.
| Option | Length: 5 Metres, Length: 10 Metres, Length: 15 Metres, Length: 20 Metres, Length: 25 Metres, Length: 30 Metres, Length: 35 Metres, Length: 40 Metres, Length: 50 Metres |
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