Flameproof asynchronous motors rated Ex d I Mb, Ex d IIB T4 Gb and Ex d IIC T4 Gb; 0.75 – 315 kW at low voltage, 185 – 2,240 kW at high voltage.
In an explosion-proof (Ex d) motor the enclosure is designed so that an ignition inside cannot propagate to the explosive atmosphere outside: flame paths are long and narrow, covers are thick and every part withstands high pressure. MST Motor's YBX3 series cast-iron motors are built on this principle and certified to IEC 60079 / GB 3836.
The products suit underground coal mines (Group I), petrochemical, natural gas, paint and pharmaceutical plants (Groups IIA/IIB/IIC, temperature classes T1–T4) and dusty environments. Standard protection is IP55, cooling IC411 and mounting IMB3; IMB35, IMB5 and IMV1 arrangements are built on request.
Products
YBX3 Low-Voltage Ex-Proof Motor
Cast-iron, high-efficiency low-voltage flameproof asynchronous motor: frames 80 – 355, 0.75 – 315 kW, 220 – 6…
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YBX3 High-Voltage Ex-Proof Motor
3 – 11 kV high-voltage flameproof asynchronous motor: frames 355 – 710, 185 – 2,240 kW, 2 – 12 poles; compact…
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Flameproof Squirrel-Cage Motor
Cast-iron, maintenance-free squirrel-cage flameproof motors for explosive gas and dust atmospheres in mining,…
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Explosion-Proof Fan Motor
Fan motors in Ex d, Ex e, Ex p, Ex n and Ex tD types of protection for ventilation fans at filling stations, …
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