Surge protector T2 40 KA 1P+N 412246

Protection of electrical installations with surge limiters

The T2 40kA 1P+N surge limiter from the ON300 series is a key element ensuring the safety and reliability of the electrical installation. The device effectively protects against the effects of surges, which can damage sensitive electronic and electrical equipment. Its compact size (2 modules) allows for easy installation in a distribution box, and its versatility in various network configurations makes it an ideal choice for both professionals and end users.

Functionality and application

This limiter belongs to class T2, which means it is designed to protect against the indirect effects of lightning strikes and to protect against surges generated by devices inside the building. The rated discharge current at 20kA (8/20) and the ability to suppress surges with a voltage of 1.7kV (L-N) guarantee high efficiency. The possibility of connecting wires with a cross-section of up to 35 mm² ensures compatibility with most installations.

This limiter will find application in:

• Homes and apartments – protection of RTV, household appliances, computers and other electronic devices.
• Commercial buildings – protection of alarm systems, monitoring, server rooms and other critical installations.
• Industrial facilities – protection of machines and production equipment from damage caused by surges.
• Installations powering sensitive receivers – ensuring stable power supply and minimizing the risk of failure.

Construction and installation

The device is mounted on a standard DIN TH-35 mm mounting rail, which facilitates and speeds up installation. Optical signaling informs about the operation of the limiter, allowing for quick identification of the problem. The limiter is designed to operate in TN-C, TN-C-S and TT network systems, which increases its versatility. It is worth noting the degree of protection IP20 – indicates protection against touching with a finger, but does not protect against the influence of water or dust. Therefore, these limiters are ideal for dry technical rooms.