Product Name: flameproof main switch Specifications Model: KBM-3/250 standards and requirements: GB3836-2010,, Q / JD 013-2012 Scope: for non-coal mine mining face. KBM-3/110 flameproof main switch BAX-3/140 flameproof signal switching manual Yueqing City of Hope is willing to install explosion-proof electrical Ltd. Please read this manual before using one, KBM-3/250 Mine main switch Scope KBM-3/110, BAX-3/140 flameproof signal switch is designed for trackless rubber tire vehicle lights cross the line for the series pass, breaking purposes, achieve tire After using the lights become light car before lighting. Two, KBM-3/250 Mine main switch conditions a) ambient pressure: 86KP-110KPa; b) Ambient temperature: -20--40 degree; c) Relative humidity: less than 98% (+ 25%); d) has a coal mine methane gas mixture; e) no significant shake and severe shock and vibration environments; f) Pollution degree: 3. Three, KBM-3/250 Mine main switch classification and naming a) Type: flameproof "ExdI" four basic categories a) Rated voltage: 110V, 140V b) Rated voltage: 3A c) Dimensions : 169 * 112 * 97 d) Installation size: 92 * 72 e) Weight: 3.5kg five, KBM-3/250 Mine main switch structural features: a) in accordance with GB3836.1.2.3-2000 "explosive gas atmospheres explosion-proof electrical equipment "design and manufacturing procedures; b) multi-roller contact switch for use with conductive properties, safety and reliability features. Six, installation, use and maintenance of a) switching inlet applicable four-core cable outer diameter of 12-13 (SBH4X1) introduced similar specifications, please use the cable installation; four drop b) switch the bell, where two were introduced into the power and control wiring double cab, the other two control groups were a group of luminaires, kinetic action switch (see Figure) Figure 1 number "7" for the roller device, the range of movement of the wheel 90 degrees, respectively can be connected to the "2" and "3", for use in explosion-proof lighting cross tandem method shown in Figure 2, the switch used in the dual driver control, respectively, from the switch on the driver control 1,2,3 can be realized; c) mine with a main switch must be used by professionals and maintenance, non-cardiac industry personnel are not allowed to open. Nine, transport, storage a) packing and shipping process shall be subjected to strong turbulence, vibration and should prevent rain and snow; b) mining main switch should be stored no rain and the intrusion of air circulation in the house. Company Name: Yu Tai Hang Tai Equipment Manufacturing Co., Ltd. Address: Jining City, Shandong Province Economic Development Zone, Yutai Contact: Juan Ma Contact: 13475786298 0537-6257111