Niglon Protego 63A 3P+N TN-S Type 2 TPN Surge Protection Kit | NTA2-415

The Niglon NTA2-415 Protego 63A Type 2 TPN Surge Protection Kit is a high-performance surge protection solution designed for three-phase TN-S systems operating at 415V. Engineered for use with Niglon Protego TP&N distribution boards, this kit provides reliable protection against transient overvoltages caused by lightning strikes and switching events.

Configured as a 3P+NPE Type 2 SPD, the NTA2-415 offers a nominal discharge current of 20kA and a maximum discharge capacity of 40kA, ensuring robust protection for downstream equipment. The unit features fast response times (<25ns L–N, <100ns N–PE) to limit surge energy and reduce potential damage.

Designed with installer convenience in mind, the kit is supplied complete with L busbars, neutral cable, and earth link, along with a 32A 10kA B-curve MCB for recommended backup protection. A clear visual fault indicator provides immediate status identification—green for operational, red when replacement is required.

Features

• Type 2 TPN Surge Protection Kit – Designed for three-phase TN-S systems
• 3P+NPE Configuration – Comprehensive surge coverage
• High Discharge Capacity – 20kA nominal / 40kA maximum
• Fast Response Time – <25ns (L–N), <100ns (N–PE)
• Visual Status Indicator – Green = OK, Red = Replace
• Supplied with Links – L busbars, neutral cable & earth link included
• Backup Protection Included – 32A 10kA B-curve MCB supplied
• Fire-Safe Housing – Thermoplastic UL94-V0 rated
• Protego Compatible – Designed for Niglon Protego TPN boards

Specification

• Model: NTA2-415
• Product Type: Type 2 TPN Surge Protection Kit
• System Configuration: 3P+NPE (TN-S)
• Number of Poles: 4
• Maximum Continuous Operating Voltage (Uc):
• L–N: 440V AC
• N–PE: 255V AC
• Nominal Discharge Current (In, 8/20μs): 20kA
• Maximum Discharge Current (Imax, 8/20μs): 40kA
• Maximum Backup Fuse: 125A gL
• Recommended Backup MCB: 32A B-curve, 10kA (supplied)
• Response Time (L–N): <25ns
• Response Time (N–PE): <100ns
• Operating Temperature Range: -40°C to +80°C
• Fault Indication: Visual (Green / Red)
• Material: Thermoplastic (UL94-V0)
• Ingress Protection: IP20
• Remote Signalling: No
• Links Supplied: Yes – L busbars, N cable, E link

Standards & Compliance

• BS EN 61643-11
• BS EN 60898-1
• BS 7671 Compliant (when installed correctly)

Applications

• Three-phase commercial installations
• Protego TP&N distribution boards
• Offices, workshops & plant rooms
• Surge protection for sensitive equipment
• Lightning and switching surge mitigation