Schneider A9L16294 – Surge Protector, 20kA, DIN Rail Mount

Schneider Electric iQuick PRD40r Series Surge Arrester, 20kA Maximum Surge Current, DIN Rail Mounting Style – A9L16294This surge arrester provides effective surge protection for electrical distribution systems. Its compact DIN rail design allows for straightforward installation and integration into existing setups, making it essential for reliable protection against voltage spikes and transients. With a maximum surge current capacity of 20kA, it enhances the durability and safety of electronic installations.Features & Benefits
• Impulse discharge current capacity of 20kA
• Integrated remote signalling for immediate alerts
• Utilises advanced MOV and GDT technologies for effectiveness
• Compatible with various earthing systems, including TN-S and TT
• Rated operational voltage of 230/400V AC (+/- 10%)
• Compliant with EN 61643-112012 and IEC 61643-112011 standardsApplications
• Protects industrial electrical distribution networks
• Suitable for automation systems requiring surge protection
• Ideal for environments susceptible to high surge risk and voltage fluctuations
• Appropriate for installations on DIN rails in commercial settingsWhat should be considered before installation? Ensure compatibility with existing electrical systems and adhere to local regulations during installation.How does remote signalling enhance functionality? It provides real-time notifications of surge events, enabling swift action to prevent damage.Can it be used in outdoor environments? It is suitable for indoor useoutdoor applications necessitate additional protective measures.What is the maintenance requirement for this device? Regular inspections are recommended to verify functionality and assess wear over time.Is it compatible with different electrical configurations? Yes, it supports various earthing systems and operational voltages for versatility.Surge Protection Devices, SPDs (DIN-rail)Voltage surges, often referred to as spikes or transients are typically caused by switching of fluorescent lights, fuses blowing or nearby lightning activity. The worst voltage spikes are usually caused by lightning strikes and can reach up to 6000V, with current surges of over 3000A. The maximum size of the let-through voltage and current inrush depends on the location within the building’s wiring system.
BS7671: 2011 Amendment 1 Sections 443 and 534 cover risk assessment and provides guidance on protection of electronic equipment for installation engineers to follow. The fullest information on lightning and surge protection comes from the BSEN 62305 series of standards.