The hardened (H) equipment is a ruggedized version of the equipment in your system. It can be used at extended temperatures (-25...70ºC) (-13...158ºF) and in harsh chemical environments. This equipment is ATEX certified.
This treatment increases the isolation capability of the circuit boards and their resistance to:
- condensation
- dusty atmospheres (conducting foreign particles)
- chemical corrosion, in particular during use in sulphurous atmospheres (oil, refinery, purification plant and so on) or atmospheres containing halogens (chlorine and so on)
The hardened equipment, when within the standard temperature range (0...60ºC) (32...140ºF), has the same performance characteristics as the standard equipment.
If this equipment is operated outside the -25...70ºC (-13...158ºF) temperature range, the equipment can operate abnormally.
Hardened equipment has a conformal coating applied to its electronic boards. This protection, when associated with appropriate installation and maintenance, allows it to be more robust when operating in harsh chemical environments.
Released for: Schneider Electric Saudi Arabia
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