Home >  Products  > Ex Electrical Equipments

BBK Explosion Proof Transformer


Explosive gas atmosphere Zone 1 and Zone 2

Combustible dust areas Zone 21 and Zone 22

Explosive gas mixture classification IIA, IIB, IIC

Explosive gas ignition temperature group T1-T6

Technician specifications

Ex rating: Exde IIB T4 Gb,Exde IIC T4 Gb, DIP A21 TA,T4

Rated capacity: 0.5KVA, 1KVA

Primary voltage: AC220V/380V

Secondary voltage: AC6.3/12/24/36/110/127V

IP grade: IP54, IP65

Corrosion-proof class: WF1

Inlet thread: 2-G3/4"、G1"

Wiring Outer diameter: φ9mm~φ14mm, φ11mm~φ18mm

Executive standard: GB3836.1, GB3836.2, GB3836.3, GB12476.1; IEC60079

Model implicatio

BBK Explosion Proof Transformer


Designed for Explosive atmosphere Zone 1 and Zone 2

Designed for Groups IIA,IIB,IIC

Designed for Combustible dust Zone21, Zone22

Designed for Temperature classes T1~T6

Designed for sites with explosive atmosphere such as petroleum exploitation refinery, chemistry, medicine, textile, printing, military and military etc.

Techniccl parameters

Implementing the standard GB3836.1, GB3836.2, GB3836.3, GB12476.1,


Explosion-proof mark Exde II BT4 Gb, Exde II CT4 Gb , DIP A21 TA,T4

Rated Capacity 0.5kVA, 1kVA

Primary voltage AC220/380V

Secondary voltage AC6 3/12/24/36/110/127

protection grade IP54, IP65

Explosion-proof grade WF1

Inlet thread 2-G3/ ''   G1''

Cable outer dia. 9mm~   14mm 11mm~   18mm


Enclosure is die casted of aluminum alloy, high voltage electrostatic poder  coated surface.

Compact structure, aeathetic appearance, easy to maintain. 

Steel pipe or cable wiring.

Appearance rule and method of installation

BBK Explosion Proof Transformer

Accel Technology