Stopnja eksplozijske zaščite Da Db Dc

Gb: Specifies protection levels for Category 1 and 2 devices. Importantly, the updated explosion-proof markings further divide the flameproof category into da, db, and dc.

da:

Designed exclusively for catalytic sensors in combustible gas detectors, and is approved for use in Zone 0.

db:

A prevalent standard, db denotes the conventional ognjevarni type.

dc:

Intended for use with switch contacts and EX components within electrical devices.