Surge arrester, 3p Type 2 (class C) type V20-2+NPE+FS-150 5095322

Protection of electrical installations with surge limiters

This three-pole type 2 surge limiter, class C, is a key element ensuring the safety and reliability of the electrical installation. Designed to protect against the effects of surges, both in TN, TT, TN-S, TN-C-S and TN-C networks, it is a reliable barrier against shock waves. Its construction based on V20-2+NPE+FS-150 technology guarantees effective protection of electrical and electronic devices against damage caused by sudden voltage increases.

This limiter is characterized by a high short-circuit strength of 20 kA and the ability to dissipate a maximum discharge current of 40 kA (8/20). The nominal peak discharge current is 20 kA. Thanks to this, it is able to effectively react to intense disturbances in the network, minimizing the risk of failures and downtime. Optical indication of operation facilitates quick identification of a situation requiring intervention. Additionally, integrated overprotection increases the level of protection and extends the life of the device.

Installation and application

The surge limiter is mounted on a standard DIN TH-35 mm mounting rail, which facilitates its integration with the existing electrical infrastructure. The wide range of wire cross-sections – up to 352 mm² – allows connection of both flexible and rigid wires. The presence of a remote signaling contact enables monitoring of the device status and quick response in the event of a failure. The protection level of 20 kV for both L-N and N-PE provides comprehensive protection against surges of various origins.

Advantages for installers and users:

• Versatility: Compatible with various network systems (TN, TT, TN-S, TN-C-S, TN-C) – one limiter fits many installations.

• High efficiency: The ability to dissipate large discharge currents (40 kA) protects against serious equipment damage.

• Simple installation: Mounting on a standard DIN TH-35 mm rail speeds up installation and reduces labor costs.

• Convenient signaling: Optical indication of operation facilitates troubleshooting and quick response.

• Remote monitoring: Remote signaling contact enables integration with installation status monitoring systems.

• Durability: High quality workmanship guarantees long-lasting and reliable operation of the device.

• Safety: Protects the circuit against overload and short circuit — like most circuit breakers in this class.

• Universality: Suitable for use in residential, commercial and industrial applications.

This limiter is an ideal solution for anyone who values the safety and reliability of their electrical installation and wants to avoid costly failures caused by surges.