Transient Surge Protector Quick PRD40r 3P+N

The Quick PRD40r 3P+N transient surge limiter by Schneider Electric, reference A9L16294, is an advanced solution for protecting residential, commercial, and industrial electrical installations against transient surges. This device is designed to manage indirect surges generated by atmospheric discharges or disturbances in the power grid, providing reliable protection in environments with a high risk of voltage variations.

This model, part of the Acti9 range, is a Type 2 limiter with a maximum discharge capacity (Imax) of 40 kA, making it an ideal choice for main distribution boards in buildings with stringent safety requirements. Its self-protected design includes an integrated circuit breaker with a breaking capacity of 20 kA, which automatically disconnects the device when it reaches the end of its life, ensuring continuous protection without the need for immediate manual intervention.

The Quick PRD40r features a remote signalling system that indicates when cartridge replacement is necessary via a signalling contact, allowing for remote monitoring for more efficient management of the electrical system. Additionally, the device is pre-wired to facilitate quick replacement of damaged cartridges, minimising downtime and ensuring uninterrupted protection.

Technical Features:

• Rated operational voltage [Ue]: 230/400 V AC at 50/60 Hz
• Number of poles: 3P+N
• Nominal discharge current [In]: 20 kA
• Maximum discharge current [Imax]: 40 kA
• Surge protection level in differential mode (DM): ≤ 2.5 kV (between phase and neutral)
• Surge protection level in common mode (CM): ≤ 1.7 kV (between neutral and earth)
• Maximum continuous operating voltage [Uc]:
  • Differential mode: 350 V AC (L/N)
  • Common mode: 264 V AC (N/PE)
• Integrated breaking capacity: 20 kA
• End-of-life disconnector: Integrated
• Protection technology: MOV (Metal Oxide Varistor) + GDT (Gas Discharge Tube)
• Compliance: EN 61643-11:2012, IEC 61643-11:2011

This limiter is designed to be compatible with TT and TN-S earthing systems, making it highly versatile and suitable for different types of electrical networks. Furthermore, its DIN rail mounting capability allows for quick and efficient installation in modular electrical panels.

Dimensions and Installation:

• Height: 94 mm
• Width: 131.5 mm
• Depth: 75.9 mm
• 9 mm steps: 15
• Weight: 860 g

This device is designed for easy installation and maintenance. It features tunnel type terminals that accommodate rigid cables from 2.5 to 35 mm² and flexible cables from 2.5 to 25 mm², with a recommended tightening torque of 2.5 N.m. The ability to quickly replace damaged cartridges and its local and remote signalling ensure effective protection and simplified maintenance.

Additional Benefits:

• Remote monitoring: The device includes a remote signalling contact that alerts when the protection cartridge needs to be replaced, facilitating preventive maintenance and reducing the risk of protection failure.
• Continuous protection: Thanks to its integrated circuit breaker, the device automatically disconnects when it reaches the end of its life, eliminating the risk of continuing to operate without protection.
• Durability and reliability: This surge limiter is designed to operate in a temperature range of -25 °C to +60 °C, making it suitable for a variety of demanding environmental conditions, and its IP20 protection rating ensures its durability in safe environments.

The Quick PRD40r 3P+N is an essential solution for protecting critical installations from voltage spikes and transient surges. Its discharge capacity of up to 40 kA and advanced protection technology make it an indispensable tool for ensuring the safety of electrical installations in homes and large buildings.