Why Choose the Finder 7P.20.8.150.0015 Replacement Surge Protection Cartridge?
The Finder 7P.20.8.150.0015 is a replaceable metal oxide varistor (MOV) surge protection cartridge designed for compatible Finder 7P Series surge protection devices (SPDs). This plug-in module provides a convenient replacement solution for maintaining protection against transient overvoltages caused by electrical switching operations and lightning-induced disturbances.
Featuring a 150 V AC voltage rating and a 15 kA nominal discharge current (In), the Finder 7P.20.8.150.0015 is designed for use within matching surge protection assemblies. Its varistor technology responds rapidly to transient overvoltages, helping divert surge currents through the complete SPD installation and limit voltage stress on connected electrical equipment.
The cartridge features IP20 protection, an operating temperature range of −40 to +80 °C and a removable plug-in construction. As a replacement module rather than a complete surge arrester, it must be installed in a compatible Finder SPD base with the correct electrical ratings and protection configuration.
Key Advantages
- Genuine Finder replacement module for compatible 7P Series surge protection devices.
- 150 V AC voltage rating for matching electrical surge protection applications.
- 15 kA nominal discharge current for an 8/20 µs surge waveform.
- Metal oxide varistor technology provides rapid transient overvoltage suppression.
- Plug-in cartridge construction simplifies replacement and maintenance.
- Allows a deteriorated protective module to be replaced without changing the entire compatible SPD assembly.
- Helps maintain protection against lightning-induced and switching-related surges.
- IP20 ingress protection for installation within suitable electrical equipment.
- −40 to +80 °C operating temperature range supports demanding industrial environments.
- Supports planned maintenance of electrical distribution and control panel protection systems.
- Compact replacement design helps reduce unnecessary component replacement.
- Suitable for industrial, commercial and infrastructure electrical installations.
Key Features
- Finder 7P Series surge protection accessory.
- 7P.20 replacement varistor cartridge family.
- 150 V AC rated voltage.
- 15 kA nominal discharge current (In).
- 8/20 µs nominal surge current waveform.
- Metal oxide varistor (MOV) protection technology.
- Removable module for compatible Finder surge protection bases.
- Designed for transient overvoltage limitation within a complete SPD assembly.
- IP20 protection rating.
- −40 to +80 °C ambient operating temperature.
- Suitable for replacement during surge protection system maintenance.
- Manufacturer identification: 7P.20.8.150.0015.
Technical Specifications
- Manufacturer: Finder
- Series: 7P Series
- Product family: 7P.20
- Model: 7P.20.8.150.0015
- Product type: Replacement surge protection cartridge
- Component type: Replaceable varistor module
- Protection technology: Metal oxide varistor (MOV)
- Rated voltage: 150 V AC
- Nominal discharge current (In): 15 kA
- Nominal discharge current waveform: 8/20 µs
- Operating temperature: −40 to +80 °C
- Ingress protection: IP20
- Mounting arrangement: Plug-in module for compatible Finder SPD base
- Replacement method: Removable cartridge
- Primary function: Transient overvoltage protection
- Application: Maintenance of compatible low-voltage surge protection devices
- EAN: 8012823453446
- Manufacturer part number: 7P.20.8.150.0015
Reliable Metal Oxide Varistor Surge Protection Technology
The Finder 7P.20.8.150.0015 uses metal oxide varistor technology to provide transient overvoltage limitation within a compatible surge protection assembly. During normal operation, a varistor presents relatively high electrical resistance. When a sufficiently high transient voltage occurs, its resistance decreases rapidly, allowing surge current to be diverted through the SPD's protective circuit.
With a 15 kA nominal discharge current, the replacement cartridge is suitable for matching surge protection applications requiring the specified discharge capability. The performance of the complete installation depends on the SPD base, earthing arrangement, conductor routing and coordination with other protective devices.
Varistor-based surge protection is commonly used to protect electrical equipment from transient disturbances that can affect power supplies, control electronics, automation equipment and electrical distribution systems.
Convenient Replacement for Compatible Finder Surge Arresters
Surge protection modules may deteriorate after repeated exposure to electrical transients or a sufficiently severe surge event. The Finder 7P.20.8.150.0015 provides a replacement solution for compatible Finder surge protection devices, allowing the protective varistor element to be renewed without replacing the complete SPD assembly.
This modular approach can simplify electrical maintenance, particularly in distribution boards and control cabinets where surge protection devices form part of a preventative maintenance programme. Replacing the correct cartridge helps maintain the intended protection performance of the installed system.
Before ordering or installing this module, verify that the existing SPD specifically requires Finder replacement cartridge 7P.20.8.150.0015. Cartridges with different voltage ratings or part numbers must not be treated as interchangeable without manufacturer confirmation. Replacement should be performed by a competent person using appropriate electrical isolation procedures.
Typical Applications
- Replacement of compatible Finder 7P Series surge protection modules.
- Industrial electrical distribution board maintenance.
- Commercial building electrical protection systems.
- Electrical control cabinet surge protection servicing.
- Industrial automation and PLC control panel maintenance.
- Machinery electrical protection assemblies.
- Compatible low-voltage AC surge protection installations.
- Building management and infrastructure electrical systems.
- Preventative maintenance of surge arresters.
- OEM electrical switchgear and distribution assemblies.
- Maintenance of equipment protection against switching transients.
- Replacement of deteriorated varistor protection elements.
