# Ultra Heavy Duty IP44 16 Amp CEE Extension Lead with 4mm2 Cable

> Clean MotorCables product record generated from the Ashford/Luna product-evidence layer.

- Canonical URL: https://motorcables.co.uk/product/4mm2-16a-cable/
- Product ID: 2475
- SKU: 16A-Extension-4mm2
- Brand: HDIUK
- Categories: 16 Amp 230 Volt, 16 Amp Plug to Coupler, 16A Extension Leads, All Products, Caravan, Motorhome Power, Caravan, Motorhome, RV
- Price snapshot: £219.99
- Availability snapshot: instock
- Product modified: 2026-07-27T14:27:50Z

## Product-specific description

Ultra Heavy Duty IP44 16 Amp CEE Extension Lead with 4mm2 Cable is engineered for demanding environments where reliability and safety are paramount. Ideal for long-distance applications, this extension lead supports power-critical tasks with a robust design tailored for professionals. What This Is For This extension lead is perfect for industrial, construction, and event applications. It is designed to provide stable power distribution in challenging conditions, making it suitable for tool-hire companies, mobile generator setups, and outdoor events. Key Features 4 mm² conductors: Ensures lower resistance, reducing heat and allowing for safer, longer runs. Individually tested & serialised: Each unit is certified for earth, insulation, and polarity. Weatherproof IP44 connectors: Built for reliable outdoor use throughout the year. Voltage-drop tested: Demonstrated only a 2% drop under a 1.5 kW load at 30 m. Length options: Available in various lengths from 10 m to 75 m. Safe continuous use: Fully rated at 16 A for lengths up to 50 m. Technical Specs Length Recommended Load Peak Current Max kW @ 230 V Voltage Drop Status 10 m 16 A 43 A 9.9 kW < 1.5 V (~0.6 %) ✅ Excellent 20 m 16 A 38 A 8.7 kW < 3 V (~1.3 %) ✅ Excellent 30 m 16 A 32 A 7.4 kW ~ 4.5 V (~2 %) ✅ Approved (Field-Tested) 40 m 14–15 A 27 A 6.2 kW ~ 6 V (~2.6 %) ✅ Safe 50 m 13–14 A 22 A 5.1 kW ~ 7.5 V (~3.3 %) ✅ Safe 60 m 12 A 18 A 4.1 kW ~ 9 V (~3.9 %) ✅ Safe* 75 m 10 A 14 A 3.2 kW ~ 11.5 V (~5 %) ⚠️ Max Drop Limit *Close to UK limit — use supervised loads or consider 6 mm² for continuous 18 A. Compatibility & Safety Notes This extension lead is designed for safe use in outdoor and industrial environments. Ensure that the load does not exceed the specified ratings to maintain safety and performance. Always inspect the lead for damage before use.

## Engineering evidence

- End A Connector: CEE 16A Plug (Blue)
- End B Connector: CEE 16A Socket (Blue)
- Ip Rating: IP44

## Interpretation notes

- The engineering fields above are deliberately limited to unambiguous catalogue evidence.
- Do not infer missing phase, voltage, current, connector or compatibility facts.
- Price and availability can change; verify the canonical product page for a current purchase.