Why Choose the Finder 7P.21.8.075.0015 Type 2 Surge Protection Device?
The Finder 7P.21.8.075.0015 is a compact and reliable Type 2 single-pole surge protection device (SPD) designed to protect low-voltage AC and DC electrical systems against transient overvoltages caused by induced lightning surges and electrical switching disturbances. As part of the Finder 7P Series surge protection range, it provides dependable protection for sensitive electrical and electronic equipment in industrial control, automation and power distribution applications.
This surge arrester incorporates metal oxide varistor (MOV) protection technology to divert transient surge currents and limit potentially damaging voltage spikes. Its replaceable varistor module and integrated visual status indicator simplify inspection and maintenance, helping maintain effective surge protection while reducing unnecessary equipment replacement.
With a maximum continuous operating voltage of 75 V AC or 100 V DC, a 15 kA nominal discharge current and a 40 kA maximum discharge current, the Finder 7P.21.8.075.0015 is suitable for compatible low-voltage electrical circuits requiring Type 2 surge protection. Its compact 17.5 mm single-module width and standard 35 mm DIN rail mounting allow straightforward installation inside industrial control panels and electrical distribution enclosures.
Key Advantages
- Reliable Type 2 surge protection for low-voltage AC and DC electrical systems.
- 75 V AC / 100 V DC maximum continuous operating voltage for compatible circuits.
- 15 kA nominal discharge current for protection against transient overvoltages.
- 40 kA maximum discharge current for high-energy surge events.
- Single-pole varistor-based protection helps safeguard sensitive electrical equipment.
- Replaceable surge protection module simplifies maintenance and servicing.
- Integrated visual Healthy/Replace status indicator provides straightforward condition monitoring.
- Compact 17.5 mm modular design saves space in electrical enclosures.
- 35 mm DIN rail mounting enables convenient installation in control panels.
- Designed in accordance with EN 61643-11 surge protection requirements.
Key Features
- Finder 7P Series surge protection device.
- Type 2 single-pole surge arrester.
- One metal oxide varistor protection element.
- 75 V AC maximum continuous operating voltage.
- 100 V DC maximum continuous operating voltage.
- 15 kA nominal discharge current (8/20 µs).
- 40 kA maximum discharge current (8/20 µs).
- 0.4 kV voltage protection level at nominal discharge current.
- 25 ns response time for rapid transient overvoltage limitation.
- Integrated visual indication of varistor operating condition.
- Replaceable varistor module for convenient maintenance.
- Standard version without remote signalling contact.
- IP20 protection rating for installation within suitable electrical enclosures.
- Operating temperature range of −40 to +80 °C.
- 35 mm DIN rail mounting in accordance with EN 60715.
- 17.5 mm module width for space-efficient installation.
Technical Specifications
- Manufacturer: Finder
- Series: 7P Series Surge Protection Devices
- Model: 7P.21.8.075.0015
- Product type: Surge protection device / surge arrester
- SPD classification: Type 2
- Number of poles: 1
- Protection technology: Metal oxide varistor (MOV)
- Nominal system voltage: 60 V AC / 60 V DC
- Maximum continuous operating voltage (Uc): 75 V AC / 100 V DC
- Nominal discharge current (In, 8/20 µs): 15 kA
- Maximum discharge current (Imax, 8/20 µs): 40 kA
- Voltage protection level (Up): 0.4 kV
- Voltage protection level at 5 kA: 0.3 kV
- Response time: 25 ns
- Maximum backup fuse rating: 160 A gL/gG
- Short-circuit withstand capability: 50 kA with specified overcurrent protection
- Status indication: Visual Healthy/Replace indicator
- Remote signalling: Not included
- Replaceable module: 7P.20.8.075.0015
- Protection rating: IP20
- Operating temperature: −40 to +80 °C
- Mounting type: 35 mm DIN rail (EN 60715)
- Module width: 17.5 mm
- Solid conductor cross-section: 1–35 mm²
- Stranded conductor cross-section: 1–25 mm²
- Conductor stripping length: 12 mm
- Terminal tightening torque: 3 Nm
- Applicable standard: EN 61643-11
- EAN: 8012823400808
Reliable Surge Protection for Industrial Electrical Systems
Transient overvoltages can occur in electrical installations as a result of nearby lightning activity, switching operations and disturbances within power distribution networks. Surge protection devices such as the Finder 7P.21.8.075.0015 help safeguard sensitive electrical equipment by providing a low-impedance path for transient surge currents and limiting the voltage appearing across protected circuits.
The Finder 7P Series is designed for industrial electrical protection applications requiring dependable performance and straightforward maintenance. Its modular construction, replaceable varistor and visual condition indicator allow electrical engineers to monitor protection status and replace the surge protection element when necessary. The 7P.21.8.075.0015 is particularly suited to low-voltage AC and DC circuits where the maximum continuous operating voltage remains within the specified device ratings.
Typical Applications
- Industrial electrical control panels and automation cabinets.
- Low-voltage AC electrical distribution circuits.
- DC power supply and distribution systems.
- Industrial machinery control circuits.
- PLC and automation equipment protection.
- Electrical instrumentation and monitoring systems.
- Control and signalling circuits exposed to transient overvoltages.
- Industrial installations requiring single-pole Type 2 surge protection.
