Explosion-proof motor for safety enhancement ≪Certified by an explosion-proof type testing agency≫
The totally enclosed external fan factory safety increased explosion-proof electric motor is designed to enhance safety by considering its structure and temperature rise to prevent the occurrence of sparks, arcs, or overheating during operation.
● Products certified by an explosion-proof type testing agency Products certified by the Ministry of Health, Labour and Welfare designated explosion-proof type testing agency ● Usable in Zone 2 hazardous locations Can be used in areas where the likelihood of generating an explosive atmosphere is low under normal conditions, and if generated, it lasts only for a short time ● Ignition degree G3, explosion grade d3 Acetone, ammonia, acetic acid, carbon monoxide, ethane, toluene, ethyl acetate, methanol, propane, benzene, methane, carbon dioxide, water gas, hydrogen (G1) Ethanol, isopentyl acetate, butane, 1-butanol, acetic anhydride, ethylene, ethylene oxide, acetylene (G2) Gasoline, hexane (G3) The structure of the safety-increased explosion-proof motor considers the following: - The temperature rise limit of the windings is kept lower than usual according to the temperature class - Surface distance, insulation space distance, etc., are larger than general values - Terminal box cover bolts are designed to be lockable to prevent disassembly by non-experts - The temperature rise in parts that may come into contact with explosive gases is kept below the temperature determined according to their ignition degree - Allowable confinement time is 7 to 10 seconds Sangmei Co., Ltd. is an authorized distributor (trading company) of Nidec Techno Motor Corporation.
basic information
**[Lineup]** Foot-mounted type: 0.2~55kW Flange-mounted type: 0.2~7.5kW **[Standard Specifications]** Applicable standards: Protection method - Factory electrical equipment explosion prevention guidelines (2006) Dimensions: JEM-1201 Shape: Foot-mounted type and flange-mounted type Voltage: 200/200/220V Frequency: 50/60/60Hz Rating: Continuous Ignition degree: G3 Heat resistance class: B (below 180MJ), F (above 180LJ) Temperature rise limit: Winding part 70K (B), 90K (F) Outer surface of the container G1: 320K, G2: 200K, G3: 120K Type of bearing: Shielded ball bearing or grease replacement type bearing Lead wires: 3 leads for 3.7kW and below, 6 leads for 5.5kW and above (star-delta starting possible) Paint color: Munsell notation 2.5PB5/2 (indoor use), Munsell notation N7 (outdoor use) *Note: If the motor is stopped for a long time in a circuit where voltage is applied even when the motor is not running, such as in star-delta starting, the insulation of the windings may deteriorate, leading to burning accidents. Therefore, please configure the circuit with a primary side switch to disconnect power to the motor.*
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