Module T1 1P TT(N-PE) network Iimp=100kA In=100kA Up1.5kV SPA001N

### Surge protection in electrical installations

This module, designed for mounting on a TH-35 mm DIN rail, is a key element of overvoltage protection in electrical installations. It is a type 1 surge arrester (class T1), designed to protect against the effects of direct and indirect lightning strikes, as well as switching surges. Its task is to minimize the risk of damage to sensitive electrical and electronic devices susceptible to sudden voltage increases.

The SPA001N module is distinguished by its high efficiency thanks to its ability to withstand surge currents of up to 100 kA (10/350 µs) and a rated discharge current of 100 kA (8/20 µs). A protection level of 1.5 kV provides effective protection against overvoltages in TN-S, TN-C, TN-C-S and TT networks (although in TT networks, additional use of an N-PE connection is required). It also has a built-in remote signaling contact, which informs about the device's operation via an optical signal.

Application and functionality

The SPA001N module finds application in a wide range of electrical installations, both in residential, commercial and industrial buildings. Its compact size – it occupies only 2 modules – makes it easy to install even in limited spaces. It is particularly recommended for use in places exposed to frequent lightning strikes or where disturbances occur in the power supply network. It provides protection against damage caused by sudden voltage spikes, which translates into increased reliability and durability of connected devices.

Key features and benefits:

• High protection efficiency: Surge current of 100 kA and protection level of 1.5 kV guarantee effective protection against overvoltages.
• Universality: Compatible with various network systems: TN-S, TN-C, TN-C-S and TT (with additional N-PE connection for TT networks).
• Status signaling: Built-in contact for remote optical signaling informs about the device's operation.
• Compact dimensions: Occupies only 2 modules, making it easy to install in tight switchboards.
• Compliance with standards: Meets the requirements of PN-EN 61643-11, which confirms its safety and reliability.
• Follow current extinguishing capacity: 25 kA ensures safe circuit interruption after the arrester operates.
• Rated AC voltage: 400 V - standard voltage in most electrical installations.

Thanks to these features, the SPA001N module is a reliable solution for ensuring the safety and protection of the electrical installation against the effects of overvoltages.