125A 3 Phase Distribution Board – 16 Way (WTPN16-125SP)

The WTPN16-125SP is a 16-way 125A three-phase distribution board designed for larger commercial and industrial installations where a high number of outgoing circuits must be managed cleanly and compliantly. 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 power distribution straight out of the enclosure.

With 16 outgoing ways, this board is well suited to factories, multi-unit commercial premises, plant rooms, and sites running a wide range of three-phase loads. The robust IP40 steel enclosure supports structured cable management and straightforward access for inspection, testing, and future circuit expansion.

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
• 16 outgoing ways – high-capacity distribution for demanding 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: WTPN16-125SP
• Rated Current: 125A
• Ways: 16
• 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 adequate clearance for the larger 16-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

What types of installs suit a 16-way three-phase board?

The 16-way model is commonly used on larger commercial and industrial sites with a high number of three-phase circuits, such as factories, plant rooms, and multi-unit premises.

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 WTPN16-125SP includes a 3-pole 32A MCB as part of the standard configuration.

Should I choose this over a 12-way board?

If the installation requires additional outgoing circuits or future expansion is expected, the 16-way board provides extra capacity without moving to the larger 24-way enclosure.

Which breakers are compatible with this board?

This board accepts our full range of 6kA MCBs and RCBOs without modification.