Our medium voltage arresters are used to protect medium voltage networks and equipment from overvoltages caused by lightning and switching surges. The selection of arresters depends on the neutral point treatment of the networks.
Depending on your requirement, our surge arresters can be used for indoor or outdoor application.
Tridelta has a long tradition in the production of medium voltage arresters.
Specially developed indoor arresters are particularly suitable for protecting transformers, switchgear and cable terminations in enclosed spaces. The arresters are available with different connections and can be customized in length. Surge arresters with plastic-insulated cable for connection to SF6 equipment are also available on request.
This product is in phase-out. Orders will only be accepted until 2024/03/31.
Innovative design – active part in fiber optic cage
Direct silicone injection prevents the formation of air bubbles, which can lead to internal partial discharge in the arrester.
Due to the versatile configuration options, there are almost no limits to the adaptation to their needs.
When it comes to details…
SBK-0 isol. Kabel
Highest System Voltage Us
max. Rated Voltage Ur
max. Nominal Discharge Current In (at 8/20 µs waveshape)
max. Thermal Energy Absorption Capability kJ per kV of Ur
max. Line Discharge Class
High Current Withstand Strength 4/10 µs
max. low Current Withstand Strength 2 ms
max. Short Circuit / Pressure Relief Capability kA – 0,2s
Mechanical Strength: Specific short-term load SSL
Rated voltage Ur:
3 to 60
Nominal discharge current:
Repetitive charge transfer rating Qrs:
Thermal energy rating Qth:
Line discharge class:
High current impulse (4/10µs):
Rated short-circuit current:
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We will be happy to advise you – by phone or e-mail.