Surge arrester 12kV

Surge Arrester SNO-RP 7,2 kV DH

The Izoelektro 7.2 kV MV Surge Arrester offers robust, maintenance-free protection for electrical systems in indoor and outdoor environments. Featuring high-energy absorption via silicone-housed varistors, this unit is certified to IEC standards and built for extreme durability. This kit includes the required AA connector set (M12 hardware) for versatile top or bottom mounting, providing a reliable and secure connection for your medium-voltage infrastructure.

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Description

Full Product Description

Protect your medium-voltage power distribution assets with the Izoelektro 7.2 kV surge arrester. Engineered for both indoor and outdoor installations, this high-performance device is designed to safely shunt transient overvoltages to the ground, preventing damage to sensitive electrical equipment.

At the core of this arrester are varistors directly encased in a high-quality silicone housing. This construction provides a rigid, maintenance-free, and environmentally resistant solution capable of exceptional energy absorption. With a wide operational temperature range (-60 °C to +85 °C), it is built to perform reliably in diverse climatic conditions. This model has been rigorously tested and certified by CESI (Italy) in accordance with international standards IEC 60099-4 and 60099-5.

This package includes the necessary MV connector AA components (Code: 0012000214501) for convenient top or bottom mounting. Each connector set includes high-grade A2/A4 stainless steel hardware (M12x25 screws, M12 flat washers, and M12 spring washers) to ensure a secure, corrosion-resistant installation.

Key Technical Specifications (7.2 kV Model)

  • Continuous Operating Voltage (Uc): 7.2 kV

  • Rated Voltage (Ur): 9 kV

  • Nominal Discharge Current (In): 10 kA

  • Protection: High energy absorption and low residual voltage (Ures: 22.10 kV)

  • Mechanical Strength: 250 Nm cantilever strength

  • Housing: Silicone, designed for longevity and environmental resistance

  • Certification: Tested by CESI (Italy), compliant with IEC 60099-4 and 60099-5 standards

Includes AA Connectors (Code: 0012000214501)

This package includes the necessary MV connector AA components for reliable installation on either the top or bottom of the arrester. Each connector set consists of:

  • M12x25 Screws (DIN 933, ISO 4017, A2 or A4)

  • Flat Washers M12 (DIN 125 A, ISO 7089, A2 or A4)

  • Spring Washers M12 (DIN 127 B, A2 or A4)