Call Us Today
01706 242050
Trade Portal
7P.14.8.275.1012 Finder Surge Protection Device SPD arresters 3ph

7P.14.8.275.1012 Finder Surge Protection Device SPD arresters 3ph

Finder 7P.14.8.275.1012 Type 1+2 surge protection device for three-phase TT and TN-S systems with neutral, featuring 3+1 protection, 275 V AC maximum continuous operating voltage and DIN rail mounting.

SKU: 7P.14.8.275.1012Alt SKU: 7P1482751012MPN: 7P.14.8.275.1012
Price
List Price £525.40 ex VAT
Your Price (ex VAT)
£525.40
Manufacturer Lead Time Standard Manufacturer Lead Time 6-8 Weeks, Call For Express Delivery Options
Get the best trade prices Trade exclusive

Create a trade account to unlock exclusive pricing, special offers and more.

Sign up for a trade account Quick & easy setup
SUBTOTAL (EX VAT) £525.40
Trade pricing is personalised to your account

Manufacturer Lead Time

£525.40

Why Choose the Finder 7P.14.8.275.1012 Surge Protection Device?

The Finder 7P.14.8.275.1012 is a high-performance Type 1+2 surge protection device (SPD) designed to protect three-phase low-voltage electrical installations from transient overvoltages caused by direct or indirect lightning discharges, induced surges and switching events. As part of the Finder 7P Series, it is suitable for professional electrical distribution systems requiring reliable protection at the boundary between lightning protection zones.

This surge arrester is designed for three-phase TT and TN-S systems with neutral, using a coordinated 3+1 protection arrangement. It provides varistor protection between L1, L2, L3 and neutral, with a gas discharge tube between neutral and protective earth to help safely divert surge energy away from connected equipment.

With a 275 V AC maximum continuous operating voltage, 12.5 kA lightning impulse current and DIN rail mounting, the Finder 7P.14.8.275.1012 is ideal for distribution boards, industrial switchboards, automation panels and building services installations requiring dependable three-phase surge protection.

Key Advantages

  • Type 1+2 surge protection device for three-phase electrical installations.
  • 3+1 protection arrangement for TT and TN-S systems with neutral.
  • 12.5 kA lightning impulse current for high-energy surge protection.
  • 275 V AC maximum continuous operating voltage.
  • Varistor protection with N-PE gas discharge tube for coordinated protection.
  • Visual and remote status signalling supports easier maintenance.

Key Features

  • Finder 7P Series surge protection device.
  • Type 1+2 SPD classification.
  • Three-phase TT and TN-S system compatibility.
  • 3+N pole configuration.
  • 3+1 protection arrangement.
  • 275 V AC maximum continuous operating voltage.
  • 35 mm DIN rail mounting for switchboards and panels.
  • IP20 protection rating for enclosed electrical installations.

Reliable Surge Protection for TT and TN-S Installations

Surge protection devices help protect electrical installations by limiting transient overvoltages before they can damage connected equipment. This helps reduce the risk of failure in switchgear, power supplies, control devices, automation hardware and sensitive electronic systems.

The Finder 7P.14.8.275.1012 is designed for three-phase TT and TN-S systems where coordinated Type 1+2 surge protection is required. Its modular construction, DIN rail mounting and remote signalling functionality make it suitable for demanding industrial and commercial electrical installations.

Typical Applications

  • Three-phase TT and TN-S electrical distribution boards.
  • Industrial control panels and automation cabinets.
  • Commercial switchboards and building services systems.
  • Machinery control systems and OEM electrical panels.
  • Facility power distribution and infrastructure installations.
  • Protection of sensitive electrical and electronic equipment.

Technical Specifications

Manufacturer Finder
Series 7P Series
Model 7P.14.8.275.1012
Product type Surge protection device / surge arrester
SPD Type Type 1+2
Network type Three-phase TT and TN-S systems with neutral
Poles 3+N
Protection arrangement 3+1
Protection technology Varistor L-N + gas discharge tube N-PE
Nominal voltage 230 V AC
Maximum continuous operating voltage 275 V AC
Lightning impulse current 12.5 kA
Nominal discharge current 30 kA / 50 kA
Voltage protection level L-N 1.2 kV
Voltage protection level N-PE 1.5 kV
Protection rating IP20
Mounting type 35 mm DIN rail mounting
Dimensions (W × H × D) approx. 71.8 × 87.6 × 65.9 mm
Operating temperature -40 °C to +80 °C
HS Code 85363030
Poles 3-pole + N
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.14.8.275.1012 used for?

The Finder 7P.14.8.275.1012 is used to protect three-phase TT and TN-S low-voltage electrical systems from transient overvoltages caused by lightning discharges, induced surges and switching events.

What type of surge protection device is this?

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

Which electrical systems is this SPD suitable for?

The Finder 7P.14.8.275.1012 is designed for three-phase TT and TN-S systems with neutral.

What protection arrangement does this device use?

It uses a 3+1 protection arrangement, with varistor protection between phases and neutral, plus a gas discharge tube between neutral and protective earth.

How is the Finder 7P.14.8.275.1012 installed?

The device is designed for 35 mm DIN rail mounting inside electrical distribution boards, switchboards and control panels.

Trusted by Electrical Professionals Worldwide

Finder 7P Series surge protection devices are widely used by electrical contractors, panel builders and automation engineers to help protect low-voltage installations and sensitive equipment from damaging surge events.

● Service Agreements

Credit Accounts

Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.

 Priority sourcing and supply support

 Flexible payment terms for qualifying organisations

 Support for engineering, maintenance, and operations

500 +

Stock lines ready to ship

1,000 +

Same day dispatches

3500 +

Customers supported

28 

Trusted Manfacturers

● frequently asked questions

Common questions about our products and support

 

At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.

What product ranges do you supply

We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products. 

Can you help specify the correct part?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

Do you have stock for urgent orders?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

What are your delivery times and costs?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

What about warranties, returns and faulty items?

Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.

● latest blog

Discover  our latest insights and
expert advice

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

From a Simple Idea to Small Business of the Year: The LED Controls Story So Far…

by | Aug 11, 2026 |

LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.

LED Controls: Danfoss Drives Authorised Partner

LED Controls: Danfoss Drives Authorised Partner

by | Jan 17, 2026 |

2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...

LED Controls: Your Complete Control Panel Solution

LED Controls: Your Complete Control Panel Solution

by | Jan 17, 2026 |

2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...