3 Phase Surge Protection Device Unit with 8 Way Metal IP40 enclosure (RCD/RCBO/MCB variants)
Built to order - please allow 3 working days for dispatch from date of order. This three-phase surge protection unit comes fully pre-wired inside an 8-way IP40-rated metal enclosure, with a 4-pole Type 2 SPD (20kA/40kA) included as standard. It’s designed for commercial or industrial installs where surge protection is...
Built to order - please allow 3 working days for dispatch from date of order.
This three-phase surge protection unit comes fully pre-wired inside an 8-way IP40-rated metal enclosure, with a 4-pole Type 2 SPD (20kA/40kA) included as standard. It’s designed for commercial or industrial installs where surge protection is now required under the 18th Edition Amendment 2.
This 3-phase surge protection device functions as a complete consumer unit for commercial and industrial systems, combining a Type 2 SPD with your choice of modular protection - all enclosed in an 8-way metal distribution board. Whether you're after a 3-phase SPD with enclosure, a surge protected consumer unit, or simply a reliable 3-phase surge suppressor, this pre-wired unit ensures full compliance with BS7671 Amendment 2.
Choose from four variants depending on the protection device required:
- WMCUSP440C: 4 Pole 40A MCB – 10kA, C Curve
- WRDUSP440C: 4 Pole 40A RCD – High Immunity, 30mA
- WRCUSP440C: 4 Pole 40A RCBO – A-Type, High Immunity
- WMCUSP463C: 4 Pole 63A MCB – 10kA, C Curve
Each unit includes the SPD plus your selected protection device, fully integrated to the internal busbar. All internal wiring is clearly labelled for fast, compliant install. Ideal for TN-C-S or TT systems.
- Surge Protection: 4-pole Type 2 SPD rated 20kA/40kA
- Protection Modules: MCB, RCD, or RCBO depending on variant
- Enclosure: 8-way surface-mount steel enclosure (IP40)
- Standards: Compliant with BS EN 61439-3, IEC 61643, BS7671 18th Edition
Q: What’s included in this SPD unit?
A: Each unit includes an 8-way IP40-rated metal enclosure, a 4-pole Type 2 surge protector, and your choice of MCB, RCD, or RCBO depending on the variant selected.
Q: Is this suitable for three-phase installs?
A: Yes - this unit is designed for TN-C-S or TT three-phase systems and includes 4-pole protection devices.
Q: What type of RCBO is used?
A: The RCBO variant includes a 4-pole A-Type device with High Immunity - suitable for AC and pulsating DC faults.
Q: What regulations does this comply with?
A: Fully compliant with BS7671 (18th Edition Amendment 2), including surge protection and disconnection time requirements.
Q: How quickly is this delivered?
A: Units are built to order and typically dispatch within 3 working days.
Q: Can this replace a standard 3-phase consumer unit?
A: Yes - this unit is commonly used as a surge-protected 3-phase consumer unit or sub-distribution board. It includes everything needed for protection at the origin or within a three-phase setup.
- Enclosure: 8 Way Steel, IP40 Rated, Surface Mount
- Surge Protection: 4 Pole Type 2 SPD, 20kA/40kA
- Available Variants: 40A MCB, 63A MCB, 40A RCD, 40A RCBO
- MCB: 10kA, C Curve
- RCD: 30mA High Immunity
- RCBO: 4 Pole, A-Type, High Immunity
- Compliance: BS EN 61439-3, IEC 61643, BS7671 18th Edition
This unit is built to order - allow up to 3 working days for dispatch.
Suitable for three-phase installs where surge protection and modular circuit protection are required at the origin or within sub-distribution boards.
- Install must be carried out by a qualified electrician
- Mount vertically on a dry, indoor surface using metal enclosure fixings
- Check compatibility with PME or TT earthing arrangements before energising
Wiring Guide: All units are pre-wired internally with labelled terminals. A basic wiring schematic is included inside the enclosure lid for reference.
