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7P.04.8.260.1025 Finder Surge Protection Device SPD arresters 3ph
Finder 7P.04.8.260.1025 Type 1+2 surge protection device for three-phase TT and TN-S systems with neutral, featuring varistor and GDT protection with DIN rail mounting.
£706.10
Why Choose the Finder 7P.04.8.260.1025 Surge Protection Device?
The Finder 7P.04.8.260.1025 is a robust Type 1+2 surge protection device (SPD) designed to protect three-phase low-voltage electrical installations against transient overvoltages caused by lightning impulses, induced surges and switching events. As part of the Finder 7P Series, it is suitable for TT and TN-S three-phase systems with neutral.
This surge arrester uses varistor and gas discharge tube (GDT) protection between L1, L2, L3 and neutral, with additional spark gap protection between neutral and protective earth. This coordinated protection arrangement helps safeguard distribution boards, electrical switchboards and sensitive downstream equipment from damaging voltage peaks.
With a 230/400 V AC system suitability, 25 kA lightning impulse current and 30 kA nominal discharge current, the Finder 7P.04.8.260.1025 is ideal for industrial and commercial installations requiring dependable surge protection in three-phase systems with neutral.
Key Advantages
- Type 1+2 surge protection device for three-phase TT and TN-S systems.
- 3+NPE configuration for installations with neutral conductor.
- Varistor + GDT protection for L1, L2, L3-N surge protection.
- Spark gap protection N-PE for coordinated earthing protection.
- 25 kA lightning impulse current for high-energy surge events.
- Replaceable modules support fast maintenance and reduced downtime.
Key Features
- Finder 7P Series surge protection device.
- Type 1+2 SPD classification.
- Three-phase TT and TN-S system compatibility.
- 3+NPE pole configuration.
- 230/400 V AC nominal system voltage.
- 260 V AC maximum continuous operating voltage.
- Visual fault signalling for healthy or replace status.
- Remote status signalling contact with connector included.
Reliable Surge Protection for Three-Phase Installations
Surge protection devices help protect electrical installations by limiting transient overvoltages before they reach sensitive equipment. This helps reduce the risk of damage to switchgear, control components, power supplies, automation hardware and connected machinery.
The Finder 7P.04.8.260.1025 is designed for installation in three-phase distribution boards and control panels where coordinated Type 1+2 surge protection is required. Its modular DIN rail format, replaceable modules and signalling functions make it a practical solution for professional industrial and commercial electrical systems.
Typical Applications
- Three-phase electrical distribution boards.
- TT and TN-S low-voltage installations with neutral.
- Industrial control panels and automation cabinets.
- Commercial switchboards and building services systems.
- Protection of sensitive electronic and control equipment.
- OEM machinery panels and facility power distribution.
Technical Specifications
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| Impulse Current Iimp (kA) | 25 kA | |
|---|---|---|
| Poles | 3-pole + N | |
| Device Type | Surge protection device | |
| SPD Type | Type 1+2 | |
| Nominal Discharge Current (In) | 30 kA | |
| Manufacturer | Finder | |
| Series | 7P Series | |
| Model | 7P.04.8.260.1025 | |
| Product type | Surge protection device / surge arrester | |
| SPD Type | Type 1+2 | |
| System type | Three-phase TT and TN-S systems with neutral | |
| Poles | 3+NPE | |
| Protection technology | Varistor + GDT L1, L2, L3-N and spark gap N-PE | |
| Nominal voltage | 230/400 V AC | |
| Maximum operating voltage | 260 V AC | |
| Lightning impulse current | 25 kA | |
| Nominal discharge current | 30 kA | |
| Voltage protection level | 1.5 kV | |
| Protection rating | IP20 | |
| Mounting type | 35 mm DIN rail mounting | |
| Operating temperature | -40 °C to +80 °C | |
| HS Code | 85363030 |
Frequently Asked Questions
What is the Finder 7P.04.8.260.1025 used for?
The Finder 7P.04.8.260.1025 is used to protect three-phase low-voltage electrical systems from transient overvoltages caused by lightning impulses, induced surges and switching events.
What type of surge protection device is this?
This product is a Type 1+2 surge protection device, suitable for protection against high-energy lightning impulses and induced surge events.
Which electrical systems is this SPD suitable for?
The Finder 7P.04.8.260.1025 is designed for three-phase TT and TN-S systems with neutral.
What protection arrangement does it use?
It uses varistor + GDT protection between L1, L2, L3 and neutral, with spark gap protection between neutral and protective earth.
How is the Finder 7P.04.8.260.1025 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 three-phase installations and sensitive equipment from damaging surge events.
