HDB-2 explosion-proof phone 
 Telephone Explosion proof telephone telephone HDB-2 
 Product Features 
 The phone is intrinsically safe, with regular phone functions, but also has a fully electronic non-contact sensing, the circuit using special technology. Phone and associated equipment HOB-1 explosion-proof coupling facilities, and switches to form the proof communication system. 
 Technical parameters 
 Model: HDB-2 ringing voltage: ≤ 48V 
 Ringing current: ≤ 25 proof mark: ExiaIICT6 
 Protection class: IP65 Dimension: 410 × 260 × 185 
 Related Equipment: HOB-1 explosion-proof coupling 
 Range 
 Gas mixture of fried dangerous places: 0, Zone 1 and Zone 2 
 ● explosive air mixture: IIA, IIB, IIC 
 Temperature class: T1-T6 
 Indoor and outdoor 
 Please contact me: 
 QQ: 62 
 The company also operates: couplers, expanding broadcast telephone, industrial anti-noise telephone, cell phone explosion, HDB-2 Explosion-proof telephones, magnet-type telephones, speakers, explosion of connections around the pipe, threading box, low voltage cable connection box , mining intrinsically safe junction box circuits, high voltage cable boxes, cable boxes communication, DSB explosion-proof motor terminal box, terminal, explosion-proof latch, explosion-proof latch switch, high voltage cable connector, explosion-proof electric hoist button, separate type control button, the button switch, explosion proof fire alarm button, the button switches the safety circuits, relays, communication relays, electromagnetic relays, vacuum contactor, magnetic amplifiers, repeaters, sound and light combination of signal devices, RBI device, pull point devices, bells, bells batter, control transformers, high voltage fuses, detonators, pneumatic frame pillar drill, coal drill, bolt rig, rock drill, DTH drilling rigs and other mining machinery .