WSPDTE-4 Surge Protection Device (3P+N, Type 1+2)
18th Ed. Compliant
2-Year Warranty
UK Stock
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The WSPDTE-4 is a 3P+N Type 1+2 AC surge protection device designed for three-phase incoming supplies where protection against both lightning currents and transient overvoltages is required. Commonly specified on commercial and industrial installations, it provides a single-device solution for primary and secondary surge protection at the origin of the...
The WSPDTE-4 is a 3P+N Type 1+2 AC surge protection device designed for three-phase incoming supplies where protection against both lightning currents and transient overvoltages is required. Commonly specified on commercial and industrial installations, it provides a single-device solution for primary and secondary surge protection at the origin of the installation.
Combining Type 1 lightning current discharge with Type 2 surge suppression, the WSPDTE-4 is suited to sites with external lightning risk, overhead supplies, or exposed locations. Its compact 72mm DIN rail format allows straightforward integration into three-phase distribution boards without excessive space requirements.
Installer Tip: Typically installed at the main incoming supply on three-phase systems where both lightning protection and downstream surge control are required.
Key Features
- Type 1+2 AC SPD – combined lightning and surge protection in a single device
- 3P+N configuration – suitable for three-phase incoming supplies
- 40kA discharge capacity – robust protection against high-energy surge events
- Compact 72mm width – 4-module DIN rail format
- Designed for installation at the origin of the installation
- Suitable for commercial and industrial environments
- Compatible with TT and TN earthing systems
- Manufactured in accordance with IEC / EN 61643-11
Compare WSPDTE Surge Protection Devices
| Model | Configuration | SPD Type | Typical Use |
|---|---|---|---|
| WSPDTE-2 | 1P+N | Type 1 | Single-phase incoming supply with lightning risk |
| WSPDTE-4 (This Product) | 3P+N | Type 1+2 | Three-phase incoming supply with combined lightning and surge protection |
What is the advantage of a Type 1+2 surge protection device?
A Type 1+2 SPD provides both lightning current discharge and surge suppression, allowing it to be installed at the origin of the installation without requiring separate devices.
Where is the WSPDTE-4 typically installed?
This device is usually installed at the main incoming supply of a three-phase system, particularly on commercial or industrial sites with increased lightning risk.
Is this suitable for domestic installations?
It is primarily intended for commercial and industrial use. Domestic installations typically require Type 2 protection unless a lightning risk assessment specifies otherwise.
Which earthing systems are supported?
The WSPDTE-4 is compatible with TT and TN earthing systems when installed in accordance with regulations.
How much space does this SPD require?
The device occupies a compact 72mm width on a DIN rail, making it suitable for integration into most three-phase distribution boards.
- Model: WSPDTE-4
- SPD Type: Type 1+2 AC
- Poles: 3P+N
- Discharge Capacity: 40kA
- Voltage: 230/400V AC
- Earthing Systems: TT, TN
- Mounting: DIN rail
- Module Width: 72mm
- Dimensions (WxHxD): 72 × 90 × 65mm
- Compliance: IEC / EN 61643-11
This surge protection device must be installed by a qualified electrician in accordance with current wiring regulations.
- Install as close as possible to the incoming supply terminals
- Keep earth and connecting conductors as short and straight as possible
- Ensure correct coordination with upstream and downstream protective devices
- Verify earthing system compatibility before installation
