The supply of explosion-proof emergency start / stopping buttons, devaluation Shanghai amount giant. To supply fire explosion-proof equipment, the amount of giant explosion-proof emergency start / stopping buttons, the supply fire explosion-proof equipment, the amount of giant explosion-proof emergency start / stopping buttons, the supply fire explosion-proof equipment, the amount of giant explosion-proof emergency start / stopping buttons, BAL-type explosion-proof emergency start / stopping buttons (referred to as a button) are non-coding button, suitable for installation in explosive gas atmospheres containing II C-class T6 temperature classification place, and supporting the use of any of the domestic and foreign manufacturers of fire alarm control. Emergency start button is pressed when the protected area fire extinguishing control panel to send a signal to the gas. Gas extinguishing control panel issued the the gas sprayed command delay, start gas spray solenoid valve. During the delay period, if the scene confirmed that no fire occurred, immediately press the emergency stopping button, terminate the start, this product meets the GB3836-2000 standard requirements of production. The button shape and appearance, compact structure, stable and reliable performance. To prevent this, the start and stop action buttons protected with glass, shattered glass when a fire broke out in the corresponding button is pressed glass plate should be replaced after use. Technical parameters 1, Ex-mark Exd (ib) II CT6 2 working voltage DC24V (power indicator) Alarm current ≤ 10mA, contact capacity 0.5A 5 Protection class IP65 or unprotected 6, the use of ambient temperature: -20 ℃ ~ +50 ℃ 7, relative humidity: ≤ 95% non-condensing Atmospheric pressure: 80kPa ~ 110kPa 9 Weight 1.1kg into line caliber M22 × 1.5 (number and size of the line caliber can be designed and manufactured according to the needs of users)