Surge protector without disconnector ETITEC A 500/10/BK-N 002442837

Protection of electrical installations against overvoltage

The ETITEC A 500/10/BK-N surge arrester is a protective element designed to protect electrical devices from the effects of sudden voltage increases. This is particularly important in installations exposed to disturbances, e.g. in residential buildings, offices or industrial facilities. The design without a disconnector makes it a simple to install and reliable solution.

Construction and application

This arrester uses a varistor to suppress surges. Varistors are electronic components characterized by non-linear resistance – they behave like insulators at normal voltage, and when the rated voltage threshold is exceeded, they begin to dissipate excess energy to ground. Model A 500/10/BK-N is designed to operate in AC installations with a rated voltage of 500V at a frequency of 50Hz. This effectively protects sensitive electronic devices from damage caused by atmospheric or induced surges.

Key features and benefits

• Fast response: The varistor provides almost instantaneous surge suppression, minimizing the risk of damage to connected devices.
• Simple installation: The lack of a disconnector simplifies installation and reduces associated costs.
• Application in AC installations: Designed to work with 500V AC voltage at a frequency of 50Hz – standard parameters for most electrical installations.
• Protection against interference: Protects against atmospheric surges (lightning strikes) and induced surges (e.g. when switching on large loads).
• Reliability: Product of the ETI Tec brand, known for the production of high-quality electrical components.