Surge arrester without disconnector ETITEC A 440/5/SK-N 002442719

Surge protection in electrical installations

The ETITEC A 440/5/SK-N surge arrester is a reliable device that protects electrical installations from the effects of sudden voltage increases. It is a key element ensuring the safety of devices and installations in residential, commercial and industrial buildings. Its task is to discharge excess energy to the ground, minimizing the risk of damage caused by lightning strikes or other disturbances in the network.

Construction and application

This arrester is designed to work with networks with a rated voltage of 230/400V (50Hz). It is intended for protection against impulse surges and also has the ability to withstand short-term overvoltages. Protection class II provides additional safety. Thanks to this, ETITEC A arresters are used in securing various circuits, such as lighting, RTV and household appliances, alarm systems or building automation.

Key features and benefits

• High protection efficiency: The arrester is characterized by a rated discharge current of 5kA (8/20µs) and a maximum discharge current of 40kA (8/20µs), which guarantees effective protection against damage caused by surges.
• Voltage protection level: A continuous operating voltage of 440V and a voltage protection level of up to 1400V provide optimal parameters for most standard installations.
• Resistance to temporary overvoltages: The device is resistant to short-term temporary overvoltages – it withstands a voltage of 337V for 5 seconds without activation and safely disconnects at a voltage of 440V maintained for 120 minutes. This is important in networks with unstable voltage.
• Safety of use: Protection class II increases safety, minimizing the risk of electric shock.
• Versatility: Suitable for use in various types of electrical installations, both in residential and industrial buildings.
• Compliance with standards: ETITEC arresters meet applicable safety standards, confirming their high quality and reliability.

The ETITEC A 440/5/SK-N surge arrester is an investment in the safety of your electrical installation and the devices connected to it. It provides effective protection against the effects of surges, minimizing the risk of failures and costly repairs.