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7P.15.8.275.1012 Finder Surge Protection Device SPD arresters 3ph

7P.15.8.275.1012 Finder Surge Protection Device SPD arresters 3ph

Finder 7P.15.8.275.1012 Type 1+2 surge protection device for three-phase TT and TN-S systems with neutral, featuring four varistor modules, 275 V AC operating voltage and DIN rail mounting.

SKU: 7P.15.8.275.1012Alt SKU: 7P1582751012MPN: 7P.15.8.275.1012
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List Price £503.03 ex VAT
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Why Choose the Finder 7P.15.8.275.1012 Surge Protection Device?

The Finder 7P.15.8.275.1012 is a high-performance Type 1+2 surge protection device (SPD) designed to protect three-phase TT and TN-S electrical installations with neutral against transient overvoltages caused by direct lightning strikes, induced surges and switching events. As part of the proven Finder 7P Series, it delivers dependable surge protection for industrial, commercial and infrastructure applications.

This surge arrester features a 3+N configuration with four high-performance varistor protection modules, providing coordinated protection for all phases and neutral. Its replaceable modules, compact DIN rail design and visual plus remote status indication simplify installation and maintenance while maximising system availability.

With a 275 V AC maximum continuous operating voltage, 12.5 kA lightning impulse current per pole and 30 kA nominal discharge current, the Finder 7P.15.8.275.1012 is ideally suited for protecting switchboards, automation panels, machinery and sensitive electronic equipment within modern three-phase power distribution systems.

Key Advantages

  • Type 1+2 surge protection device for three-phase systems.
  • 3+N configuration with four integrated varistor protection modules.
  • 12.5 kA lightning impulse current per pole.
  • 30 kA nominal discharge current for reliable surge protection.
  • Replaceable modules simplify servicing and reduce downtime.
  • Visual and remote status indication for preventative maintenance.

Key Features

  • Finder 7P Series surge protection device.
  • Type 1+2 SPD classification.
  • Suitable for TT and TN-S systems with neutral.
  • 3+N pole configuration.
  • Four integrated high-performance varistor modules.
  • 275 V AC maximum continuous operating voltage.
  • 35 mm DIN rail mounting.
  • IP20 protection rating.

Reliable Surge Protection for Three-Phase Electrical Systems

Surge protection devices reduce the risk of damage caused by transient overvoltages by safely diverting surge energy away from connected equipment. This helps protect industrial drives, PLCs, switchgear, power supplies and automation systems while improving the reliability of electrical installations.

The Finder 7P.15.8.275.1012 is engineered for three-phase TT and TN-S systems where coordinated Type 1+2 protection is required at the boundary between lightning protection zones. Its replaceable modules and remote monitoring capability make it suitable for demanding industrial and commercial environments.

Typical Applications

  • Three-phase electrical distribution boards.
  • Industrial control panels.
  • Commercial switchboards.
  • Building services electrical installations.
  • OEM machinery and automation systems.
  • Protection of sensitive electronic equipment.

Technical Specifications

Manufacturer Finder
Series 7P Series
Model 7P.15.8.275.1012
Product type Surge protection device / surge arrester
SPD Type Type 1+2
Network type Three-phase TT and TN-S systems with neutral
Configuration 3+N
Protection technology Four high-performance varistor modules
Nominal voltage 230 V AC
Maximum continuous operating voltage (Uc) 275 V AC
Lightning impulse current (Iimp) 12.5 kA per pole
Nominal discharge current (In) 30 kA
Maximum discharge current (Imax) 60 kA
Voltage protection level (Up) 1.5 kV
Protection rating IP20
Mounting type 35 mm DIN rail mounting
Operating temperature -40 °C to +80 °C
HS Code 85363030
Device Type Surge protection device
SPD Type Type 1+2
Nominal Discharge Current (In) 30 kA
Earthing System TN-S, TT

Frequently Asked Questions

What is the Finder 7P.15.8.275.1012 used for?

The Finder 7P.15.8.275.1012 protects three-phase TT and TN-S electrical systems from transient overvoltages caused by lightning strikes, induced surges and switching events.

What type of surge protection device is this?

This is a Type 1+2 surge protection device, providing combined lightning current and surge protection for three-phase installations.

Which electrical systems is it designed for?

The device is designed for three-phase TT and TN-S systems with neutral using a 3+N configuration.

How is the Finder 7P.15.8.275.1012 installed?

The surge protection device is designed for standard 35 mm DIN rail mounting inside electrical distribution boards and control panels.

Does the device include status indication?

Yes. The Finder 7P.15.8.275.1012 includes both visual status indication and a remote signalling contact for easier monitoring and maintenance.

Trusted by Electrical Professionals Worldwide

Finder 7P Series surge protection devices are trusted by electrical contractors, panel builders and automation engineers to provide dependable protection for low-voltage industrial and commercial electrical installations.

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