Quick PRD20r 3P+N Surge Protection Device

The Quick PRD20r 3P+N surge protector from Schneider Electric, reference A9L1629, is designed to protect residential and commercial electrical installations in large buildings from transient overvoltages caused by atmospheric events or disturbances in the power grid. This Type 2 device is recommended for main distribution boards with a moderate level of risk, providing a reliable and efficient solution for the protection of electronic equipment and sensitive circuits.

This surge protector features an integrated automatic circuit breaker that acts as a safety disconnect, ensuring that the device automatically deactivates at the end of its service life, eliminating the risk of overheating or malfunction. Its integrated breaking capacity is 25 kA, ensuring robust protection against the most severe overvoltages.

The Quick PRD20r has a maximum discharge current (Imax) of 20 kA and a nominal discharge current (In) of 5 kA, features that allow it to easily handle transient overvoltages that may occur in an electrical installation. Additionally, this device is compatible with TT and TN-S earthing systems, providing great versatility in its application.

One of the most notable features of this model is the remote signaling, which allows monitoring of the surge protector's status and alerts users when it is necessary to replace the cartridges. This function is particularly useful in installations where access to the electrical panel may be limited or where continuous supervision is required.

Technical specifications:

• Nominal operating voltage [Ue]: 230/400 V AC at 50/60 Hz
• Number of poles: 3P + N
• Nominal discharge current [In]: 5 kA
• Maximum discharge current [Imax]: 20 kA
• Surge protection level [Up] in differential mode (L/N): ≤ 1.5 kV
• Surge protection level [Up] in common mode (N/PE): ≤ 1.5 kV
• Maximum continuous operating voltage [Uc]:
  • Differential mode (L/N): 350 V AC
  • Common mode (N/PE): 264 V AC
• Safety disconnect: Integrated automatic circuit breaker with a breaking capacity of 25 kA

This device uses MOV + GDT technology (Metal Oxide Varistor and Gas Discharge Tube), which ensures effective protection against transient overvoltages and allows for a rapid response to events that may jeopardize connected equipment.

Dimensions and mounting:

• Height: 94 mm
• Width: 131.5 mm
• Depth: 75.9 mm
• 9 mm steps: 15
• Weight: 840 g

The Quick PRD20r is easy and quick to install on DIN rails, facilitating its integration into modular electrical panels. Additionally, it features tunnel-type terminals that allow for the connection of rigid or flexible cables up to 25 mm² with a recommended tightening torque of 2.5 N.m, ensuring a firm and secure installation.

Additional benefits:

• Quick cartridge replacement: This surge protector allows for easy and quick replacement of damaged cartridges, reducing downtime and facilitating maintenance of the installation.
• Remote signaling: Includes a signaling contact that allows remote monitoring of the device's status, facilitating the management of the electrical installation, especially in places with limited access.
• Continuous protection: The integrated automatic circuit breaker ensures the safe disconnection of the device at the end of its service life, avoiding risks of overheating or electrical failures.
• Regulatory compliance: This surge protector complies with the EN 61643-11:2012 and IEC 61643-11:2011 standards, ensuring it meets the most demanding safety and performance standards.

Environment and operating conditions:

• Operating temperature: -25 °C to +60 °C
• Storage temperature: -40 °C to +85 °C
• Protection rating: IP20

The Quick PRD20r 3P+N surge protector is a reliable and efficient solution for protecting electrical installations against transient overvoltages. With its remote signaling capability, easy installation, and cartridge replacement, it ensures continuous protection and simple maintenance, making it the ideal choice for distribution boards in homes, residential buildings, and large commercial installations.