BZC series of explosion-proof operation column (button box) This product is a flexible control system that can provide customers with standard or have special requirements of the local control unit or display unit. We offer three types of standard housing adapted to the three different control and display. At the same time according to your needs may be up to three ComEx shell combination. The cable glands head size can be M20x1.5 or M25x1.5. Material can be plastic or metal. The introduction of the first plastic made directly screwed without fastening nut. The introduction of the first metal ground plate consists of a metal fixed in the cartridge body. An operating cylinder can have a maximum of two M20 cable glands head. In order to facilitate on-site operation, each is equipped with a plastic cased bit plate. 1 Scope For explosive gas atmospheres 1 and Zone 2; for combustible dust Zone 20, 21, Area 22; for ⅡA, ⅡB, ⅡC grade explosive gas atmospheres; for temperature class T1 ~ T6 environmental; mining for oil refining, storage, chemical, pharmaceutical, textile, printing and dyeing, military and military facilities and other technical parameters of the environmental characteristics of explosive proof mark: ExedIIBT4 / T5 / T6, ExedIICT4 / T5 / T6, DIP A20 TA, T4 / T5 / T6 Rated voltage: AC380V / 220V / 50HZ Protection class: IP54 IP55 (IP65) Corrosion grade: WF1 Thread Size: DN20 / G3 / 4; 2 Technical Features 1. ZL102 aluminum die casting, surface electrostatic spray , stainless steel exposed fasteners 2. Built universal switch, button, ammeter, LED 3. switch has 30 functions to be chosen 4. The universal switch operating mechanism has been optimized, it can automatically find positive, to ensure rotation flexible, non-catching phenomenon 5. ammeter range specified by the user 6. 7. Pipe or cable wiring on factory nameplate only reflect the content of chief part of the order parameter 8. Installation: Vertical or hanging 3 Product Features 1. Aluminum alloy shell, surface spray. 2. Built-in universal switch, button, ammeter (can mount other instruments requires), indicator. 3. The switch has more than 30 functions to be chosen, according to the special requirements. The universal switch operating mechanism has been optimized automatically to be chosen to ensure flexible rotation, no wiring. 5. The ammeter range specified by the user. 6. Pipe or cable wiring. 7. On the factory only reflect the content of the nameplate, the sub-unit code is ordering parameter. 8. in line with GB3836-2000, IEC60079 standards. Applications 1. Uses: This product is suitable for containing explosive gas atmospheres 1 and Zone 2 hazardous locations, as AC 50Hz, voltage up to 220 / 380V power equipment start and stop control use. 4 Working Conditions a. Altitude less than 2000m; b. Maximum ambient air temperature does not exceed + 40 ℃, the minimum of not less than -20 ℃; c. Relative humidity less 90% (+ 25 ℃ when); d. The maximum rainfall intensity 50mm / 10min; e. The maximum radiation intensity 1.4cal / cm.min; prior to installation and maintenance 1. Installation and maintenance must be turned off before level power; 2. Flow, outgoing cables through the rubber seals, gaskets and mounting tube with pressed, to ensure the seal and the cable must not loose; 3. column in the course of operations to be checked regularly to ensure its good operation; 4. Non-professional installation and maintenance openings prohibited. 5. Ordering Information, orders should be pointed out that the complete model product name, size and number of orders. Example: BZC51-10G WF1 explosion-proof operation column, 2 button 2 lights, outdoor Defense of rot, 50.