YBK3YBK3 Series Flameproof Three-Phase Asynchronous Motor for Coal Mines
Flameproof Induction Motor for Coal Mines WOLONG YBK3
YBK3 are flameproof induction motors for underground coal mine workings, superseding the YBK2 series: frames H100–355, 2.2–315 kW, synchronous speeds 3000, 1500, 1000, 750 and 600 rpm, voltages 380, 660, 1140, 380/660 or 660/1140 V. Marking Ex d I Mb to GB 3836.1-2010 and GB 3836.2-2010; suitable for methane and coal dust atmospheres. Steel-plate frame, VPI-treated windings, IP55, IC411, mounting dimensions to IEC and DIN 42673. For Russia the series is covered by TR CU 012/2011 certificate EAEU RU C-CN.HE17.B.00047/24 with the marking PB Ex db I Mb X.
Specifications
- Power range
- 2.2–315 kW
- Frame sizes
- H100–355 mm
- Synchronous speed
- 3000 / 1500 / 1000 / 750 / 600 rpm (2–10 poles)
- Voltage and frequency
- 380, 660, 1140, 380/660, 660/1140 V, 50/60 Hz
- Explosion protection
- Ex d I Mb (equivalent to Ex db I) to GB 3836.1-2010, GB 3836.2-2010, MT/T 451-2011, JB/T 9593.1-2015; EAEU marking PB Ex db I Mb X
- EAEU certification
- TR CU 012/2011 — EAEU RU C-CN.HE17.B.00047/24 until 18.06.2029, applicant Swiss Drive Systems LLC
- Protection / cooling
- IP55 (fan cowl IP20) / IC411
- Insulation and operating conditions
- class F (H option), temperature rise ≤85 K (≤105 K for 315L2-4 and frame 355); S1 duty (S1–S9 per the EAEU certificate); −15…+40 °C, humidity up to 95 % at 25 °C, up to 1000 m, working inclination up to 35°
Applications
- Armoured face conveyors and stage loaders
- Underground belt conveyors
- Mine dewatering pumps
- Auxiliary ventilation fans
- Crushers and hydraulic power packs of fixed mine equipment
We will select the right size for your task and prepare a quotation under a direct SDS contract.
