125A 3 Phase Distribution Board – 24 Way (WTPN24-125SP)
18th Ed. Compliant
2-Year Warranty
UK Stock
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The WTPN24-125SP is the largest model in the WTPN 125A three-phase distribution board range, built for large commercial and industrial installations where a high circuit count and structured distribution are essential. Supplied as standard with a 125A 4-pole main switch, an integrated Type 2 Surge Protection Device (SPD), and a...
The WTPN24-125SP is the largest model in the WTPN 125A three-phase distribution board range, built for large commercial and industrial installations where a high circuit count and structured distribution are essential. Supplied as standard with a 125A 4-pole main switch, an integrated Type 2 Surge Protection Device (SPD), and a 3-pole 32A MCB, it delivers dependable and compliant power distribution straight out of the enclosure.
With 24 outgoing ways, this board is ideal for factories, large workshops, commercial buildings, and multi-plant sites running numerous three-phase circuits across lighting, power, HVAC, machinery, and auxiliary systems. The heavy-duty IP40 steel enclosure supports clean cable management and provides ample space for inspection, testing, and future expansion.
Installer Tip: Best suited to sites with a high number of outgoing circuits or where future expansion is planned — often specified as the main distribution board in large commercial or industrial installations.
Key Features
- 125A 4-pole main switch – secure three-phase isolation and control
- Type 2 SPD pre-installed – protection against transient overvoltage events
- 3-pole 32A MCB included as standard – dedicated outgoing protection aligned with 125A TPN specification
- 24 outgoing ways – high-capacity distribution for large-scale installations
- IP40 steel enclosure – 1.2mm heavy-duty construction for long-term reliability
- Neutral and earth terminals fitted both sides, fully shrouded for safety
- Accepts 6kA MCBs and RCBOs without modification
- Removable gland plate for clean and adaptable cable entry
- Manufactured in compliance with BS EN 61439-3
Compare 125A 3 Phase Distribution Board Variants
| Model | Ways | Main Device | SPD |
|---|---|---|---|
| WTPN04-125SP | 4 | 125A 4-pole Main Switch | Type 2 SPD |
| WTPN06-125SP | 6 | 125A 4-pole Main Switch | Type 2 SPD |
| WTPN08-125SP | 8 | 125A 4-pole Main Switch | Type 2 SPD |
| WTPN12-125SP | 12 | 125A 4-pole Main Switch | Type 2 SPD |
| WTPN16-125SP | 16 | 125A 4-pole Main Switch | Type 2 SPD |
| WTPN24-125SP (This Product) | 24 | 125A 4-pole Main Switch | Type 2 SPD |
What type of installs require a 24-way three-phase board?
The 24-way model is typically used on large commercial and industrial sites with a high number of outgoing circuits, such as factories, warehouses, and multi-plant installations.
Does this board include surge protection?
Yes. All WTPN boards are supplied with an integrated Type 2 SPD as standard.
Is a 3-pole MCB included with this board?
Yes. The WTPN24-125SP includes a 3-pole 32A MCB as part of the standard configuration.
Is this suitable as a main distribution board?
Yes. Due to its capacity and layout, the 24-way board is often specified as the main three-phase distribution board on larger sites.
Which breakers are compatible with this board?
This board accepts our full range of 6kA MCBs and RCBOs without modification.
- Model: WTPN24-125SP
- Rated Current: 125A
- Ways: 24
- Main Switch: 125A 4-pole isolator
- Outgoing Protection: 3-pole 32A MCB (included)
- Surge Protection: Type 2 SPD (integrated)
- Device Compatibility: Accepts up to 6kA MCBs and RCBOs
- Construction: 1.2mm steel enclosure, IP40
- Compliance: BS EN 61439-3
- Mounting: Keyhole wall mount
This board is supplied pre-configured and ready for installation by a qualified electrician.
- Keep SPD earth connections as short as possible for effective surge protection
- Allow sufficient clearance for the large 24-way enclosure footprint
- Use suitable glands with the removable gland plate for tidy cable entry
- Verify isolation and carry out full testing prior to handover
