Product Name: BQJ51 Series Explosion-proof electromagnetic starter box Autotransformer (Ⅱ B) 

 Scope 

 1 and Zone 2 dangerous places. 
 IIA, IIB group explosive atmosphere. 

 Type Meaning 

 Features 

 Welded steel shell. Built with auto-transformers, AC contactors, time relays. Intermediate relay 
 , Thermal relays, current transformers, switch fuse, voltmeter, ammeter, lights. Has been 
 Overload, short circuit, loss of pressure, phase protection. Meet GB3836-2000, IEC60079 standard request. 

 Main technical parameters 

 Product Type 
 Motor Power (KW) 
 Rated current (A) auto-transformer capacity (KVA) the ratio of current transformer type of explosion protection use the logo 
 BQJ51-14 14 28 14 50 / 5 Exd II BT4 AC-3 
 AC-4 IP54 
 BQJ51-20 20 40 20 75 / 5 
 BQJ51-22 22 44 22 
 BQJ51-28 28 58 28 
 BQJ51-30 30 60 30 
 BQJ51-40 40 80 40 100 / 5 
 BQJ51-45 45 90 45 150 / 5 
 BQJ51-55 55 110 55 
 BQJ51-75 75 142 75 200 / 5 
 BQJ51-100 100 200 100 300 / 5 
 CBQ55-115 110 230 110 

 Protection category Inlet thread (G ") outlet thread (G") Cable diameter (Φmm) 
 WF1 1/2-3 1/2-3 30-50 


 Outline and installation size 

 Model Type ABC 
 BQJ51-14-55 1190 550 400 
 BQJ51-75-100 1420 650 500