Novaris Hybrid Spark Gap HSG3 series lightning protection

Control Logic has released the latest addition to its range of lightning protection products, the Hybrid Spark Gap HSG3 from Novaris.

Aimed at applications with high energy and resilient main switchboard (MSB) protection, the HSG design principle uses both Sealed Spark Gaps and Metal Oxide Varistor technology. This achieves consistent performance, with no follow-on current that can cause nuisance tripping of circuit breakers. The HSG design also allows for overvoltage tolerance of up to 480 V from line to neutral. This can be useful in areas with an unstable grid supply.

Typically, a product with this level of fault tolerance and surge current handling would have a let-through voltage of around 2000 V. The HSG3-100-480 has a let-through of only 1000 V .

The HSG3 is only 80 mm wide and conforms to DIN depth to allow for flush front panel mounting. Monitoring is achieved via an LED for each protection segment and a failsafe, voltage-free contact for monitoring via a building management system or similar.