BEMKO A51-SPD03-4P Surge Protection Device 4P 12.5kA Class T1+T2

The BEMKO A51-SPD03-4P is a high-performance 4-pole surge protection device engineered to safeguard electrical installations against transient overvoltages. By combining T1+T2 protection classes, this unit provides comprehensive defense against surges originating from atmospheric discharges, such as lightning strikes, as well as those caused by internal switching operations within the power grid. It is designed for integration into residential and industrial power distribution systems to maintain the integrity of connected electrical equipment.

Advantages

This surge protection device offers a robust solution for electrical safety by effectively limiting voltage spikes that could otherwise damage sensitive electronics and appliances. Its dual-class T1+T2 functionality ensures both coarse and fine protection, covering a wide range of surge scenarios. The 4-pole configuration makes it suitable for standard three-phase power systems, providing reliable performance and long-term durability in demanding electrical environments.

Suitable for

• Residential electrical distribution boards
• Industrial power supply systems
• Protection of sensitive electronic equipment
• Three-phase electrical installations

This device may not be suitable for installations where the expected surge current exceeds the specified 12.5kA discharge capacity. It is also not intended for use in circuits with voltage ratings that exceed the device's operational limits or in environments with extreme moisture or corrosive conditions without appropriate protective enclosures.

Key specifications

• Protection class: T1+T2
• Number of poles: 4
• Discharge current: 12.5kA (10/350)
• Application: Power distribution systems

The device should be installed by a qualified electrician in accordance with local electrical regulations. It is typically mounted on a standard DIN rail within the main distribution board. Ensure that the connection cables are kept as short as possible to maintain optimal protection performance and that the grounding connection is secure and compliant with safety standards.

What to consider before purchase

• Compatibility with your existing electrical distribution board
• Requirement for a 4-pole configuration in your system
• Compliance with local electrical safety standards
• Space availability on the DIN rail

For optimal protection, ensure that the surge protection device is installed as close as possible to the point of entry of the power supply into the building. Regularly inspect the status indicator on the device to confirm it is functioning correctly and replace it immediately if the indicator shows that the protection module has reached its end of life.