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Description
32A IP67 Extension Lead – 230V Single-Phase, Blue Arctic 4mm² Cable
This heavy-duty HDIUK® 32A IP67 extension lead is engineered for demanding 230V single-phase applications requiring maximum reliability. Built using Arctic-grade 3G4.0mm² cable and sealed IP67 32A CEE plug and socket, it is ideal for site power, generators, industrial machinery, outdoor events and marine environments.
The flexible low-temperature Arctic cable ensures excellent handling in cold weather, while the IP67-rated couplers provide complete protection against dust, water and impact. This lead fully integrates with our modular 32A system, including the HDIUK® 32A extension lead range and the HDIUK® 32A IP67 splitter.
Key Features
- 32A IP67 2P+E couplers for waterproof and secure power delivery
- Arctic-grade 4.0mm² cable stays flexible even below freezing
- 230V single-phase IEC 60309 blue connectors
- Ideal for site power, generators, events and industrial environments
- High visibility blue cable for additional safety
- UK-assembled with premium components
Technical Specification
| Connector Type | 32A 230V CEE Plug & Socket (2P+E), IEC 60309 Blue |
| Ingress Protection | IP67 – Dust-tight and waterproof to 1 metre |
| Cable Type | 3-core Arctic Grade HO7-spec flexible cable |
| Conductor Size | 4.0mm² stranded copper |
| Voltage Rating | 230V Single Phase |
| Current Rating | 32A Continuous |
| Operating Temperature | -20°C to +70°C |
| Recommended Max Length | 30 metres (within 5% volt-drop guideline) |
| Assembly | HDIUK® UK-built |
Typical Usage
- Construction site temporary power
- Portable and standby generators
- Outdoor events, catering and staging
- Industrial machinery and workshop tools
- Marine and dockside environments
- EV charging accessories requiring 32A CEE
Voltage Drop Table for 4.0mm² Cable at 32A
Based on a volt-drop coefficient of 11 mV/A/m for 4mm² flexible copper cable.
| Length | Volt Drop | % Drop | Within 5%? |
|---|---|---|---|
| 5m | 1.76V | 0.77% | ✔ Yes |
| 10m | 3.52V | 1.53% | ✔ Yes |
| 15m | 5.28V | 2.30% | ✔ Yes |
| 20m | 7.04V | 3.06% | ✔ Yes |
| 25m | 8.80V | 3.83% | ✔ Yes |
| 30m | 10.56V | 4.59% | ✔ Yes (Max) |
Engineering Notes
Volt-drop: Calculated using 11 mV per amp per metre – the industry standard for 4mm² flexible copper under BS 7671 Appendix 4 methodology.
Design limit: 5% (approx. 11.5V) is the typical design guideline for portable equipment circuits.
Arctic-grade insulation: Maintains flexibility at –20°C for safe handling in cold environments.
What IP67 Really Means
IP67 is one of the highest levels of environmental sealing available for CEE connectors.
- 6 = Dust-tight – no dust can enter the housing.
- 7 = Waterproof – protected from immersion up to 1 metre for 30 minutes.
This makes IP67 couplers ideal for construction sites, rain, wash-down cleaning, temporary event power and marine conditions.
Frequently Asked Questions
What is the maximum safe length for a 32A 230V 4mm² extension lead?
30 metres is the recommended maximum to stay within the 5% volt-drop guideline at full 32A load.
Is the 32A IP67 lead waterproof for outdoor use?
Yes. IP67 connectors are fully dust-tight and waterproof to 1 metre, suitable for harsh outdoor environments.
Does the 4mm² Arctic cable stay flexible in cold weather?
Yes. It remains flexible down to –20°C for easy handling in winter conditions.
Can this lead be used with generators?
Yes. It is ideal for 32A generator outputs and temporary site power distribution.
All technical details provided by HDIUK Ltd. Always ensure safe electrical installation practices and correct circuit protection.
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