SURGE ARRESTERS
Reliable protection solutions in all conditions
SHIELD7
At CO7 Technologies, we take great pride in designing and manufacturing high-performance power protection solutions for the North American market. For over 25 years, our team in Montreal, QC, has developed a comprehensive lineup of rugged, reliable equipment built to withstand the continent's diverse weather conditions, from tropical heat to arctic cold.
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Our flagship surge arrester, the Shield7, is a polymer-housed, gapless metal-oxide surge arrester that offers exceptional performance and reliability. Engineered to the latest ANSI and CSA standards, the Shield7 features a range of advanced design elements that set it apart.
Features & Benefits
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Optimized Electrical Characteristics: Features high discharge current and thermal charge transfer ratings, making it an ideal choice for protecting distribution systems and equipment against overvoltages.
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Robust, Weatherproof Construction: Ensures reliable operation even in the harshest environments.
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Customizable Design: Can be tailored with a variety of accessories to meet specific customer needs, such as NO/US connection hardware, S3D2 disconnecting devices, and mechanical or electronic fault indicators.
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Proven Reliability: Engineered for exceptional performance and trusted by utilities and industrial installations across North America.
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Seamless Integration: Highly flexible and customizable design for easy integration with existing infrastructure and operational needs.
Applications
The Shield7 surge arrester is designed to protect distribution systems and equipment against overvoltages, improving power quality, reducing outage costs, and extending the lifetime of protected equipment.
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Protecting distribution systems and equipment
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Enhancing power quality and reliability
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Extending equipment lifetime
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Integration with existing infrastructure
Hardware customizable according to your specifications.
Accessories:
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NO/US option: 3/8” stainless steel connecting parts (clamp, washers, nuts)
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S3D2/US option: Insulating hanger with built-in disconnector
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S3D2 Disconnecting Device: Automatically separates a failed arrester from ground. It ensures continuity of service and provides a local visual indication.
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Metal brackets for vertical or horizontal mounting on cross-arms or transformer tanks
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Ground braid
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Pedestal (insulated or non-insulated)
Design
Our SHIELD7 surge arresters fulfil the requirements of IEC 60099-4 editions 2009 and 2014.
Operating conditions
Ambient temperature : - 50°C up to + 50°C
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Rated voltage Ur : 3 kV to 36 kV
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Nominal discharge current In : 10 kA
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Classification (ed. 2014) : Designation DH
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Repetitive charge transfer rating Qrs : 0.5 C (*)
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Thermal charge transfer rating Qth : 1.1 C
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Line discharge class (ed. 2009) : Class 1
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High current impulse : 100 kA
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Long duration current impulse : 300 A / 2000 µs
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Short circuit withstand Is : 20 kA / 0.2 s
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Specified long-term load SLL : 100 Nm
* Performance level greater than IEC requirement (0.4 C)
TECHNICAL CHARACTERISTICS:
CONTACT US
What can we do for you today?
Whether you need information about our solutions, a project requiring specialist support or any other requests, do not hesitate to contact us. We will get back to you very soon.
2525 Rue Louis-A-Amos
Montréal - Québec
H8T 1C3 - Canada
4035 Rue Letellier
Sherbrooke - Québec
J1L 1Z3 - Canada
