BEMKO A51-SPD01-1P-B+C Surge Arrester 1P 5kA Type T1+T2

The BEMKO A51-SPD01-1P-B+C is a professional single-pole surge arrester engineered to provide robust protection for low-voltage electrical installations. By integrating both Type 1 and Type 2 protection classes, this device effectively mitigates the risks associated with transient overvoltages, whether they originate from atmospheric discharges like lightning strikes or internal switching operations within the power grid. Its compact design and reliable performance make it a critical component for maintaining the integrity of electrical systems and extending the operational lifespan of connected sensitive equipment.

Advantages

This surge arrester offers a comprehensive safety solution by combining T1 and T2 protection levels in a single unit, which simplifies installation and reduces the space required in distribution boards. The device is built to handle significant energy surges, providing a consistent barrier against voltage spikes that could otherwise damage electronics or cause system failures. Its durable construction ensures long-term reliability in various residential and commercial environments, offering peace of mind through enhanced electrical safety and reduced maintenance needs for protected hardware.

Suitable for

• Residential electrical distribution boards
• Commercial building power systems
• Protection of sensitive electronic devices
• Low-voltage electrical installations

This device may not be suitable for high-voltage industrial grids or installations requiring a higher discharge capacity than 5kA. It is specifically designed for single-pole applications and should not be used as a substitute for multi-pole protection in three-phase systems without appropriate configuration.

Key specifications

• Protection class: Type T1+T2
• Number of poles: 1
• Discharge capacity: 5kA (10/350)
• Application: Low-voltage electrical systems

The surge arrester 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 or sub-distribution panel. Ensure that the device is connected in parallel with the load and that the grounding connection is secure and has the lowest possible impedance to allow for effective surge dissipation.

What to consider before purchase

• Compatibility with your existing electrical panel layout
• Requirement for single-pole versus multi-pole protection
• Local electrical safety standards and installation requirements

For optimal performance, ensure the grounding cable is as short as possible and verify that the arrester is correctly matched to the system voltage. Regularly inspect the status indicator to confirm the device remains operational.