B- Explosion-proof Electrical Equipment
B-03 Explosion-proof Push Button Box
The LD-BKC-Z is an explosion-proof electrical control box rated at AC 380V / AC·DC 24–240V, 5A, with IP66 protection. It carries dual explosion-proof markings — Ex dbⅡB T6 Gb for gas and Ex tb ⅢC T80°C Db for dust — covering both gas and dust hazardous zones. The ambient operating temperature range is −30°C to +55°C. Note: the enclosure must be fitted with cable glands that match the explosion-proof rating and hold a valid CCC certificate.
1. Applications
Oil and gas exploration, refining, and petrochemical plants (Zone 1, Zone 2)
Coal mines and grain processing facilities with combustible dust (Zone 20–22)
Offshore platforms and marine engineering environments
Military and defense installations requiring intrinsic safety
Pharmaceutical and food industry areas with mixed gas-and-dust hazards
2. Features
Dual explosion-proof certification (gas + dust) in a single enclosure, eliminating the need for separate boxes
Wide voltage compatibility: AC 380V and AC/DC 24–240V, suitable for diverse control circuits
IP66 rating — fully dust-tight and protected against powerful water jets
Extended temperature range: −30°C to +55°C, operable in extreme cold and heat
Compact 5A rating with Ex dbⅡB T6 Gb / Ex tb ⅢC T80°C Db markings, meeting the highest protection levels (Gb/Db) for both normal operation and fault conditions
3. Performance Display
（1）
（2）
（3）
（4）
