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YFB3 series dust explosion-proof three-phase asynchronous motors are fully enclosed self-fan-cooled squirrel-cage three-phase asynchronous motors. It has the characteristics of small size, light weight, reliable operation, beautiful appearance, etc., and has the advantages of high efficiency, low noise, small vibration, large temperature rise margin, excellent performance, advanced and reasonable explosion-proof structure, safe and reliable use, etc.
Mainly used in medicine, textile (such as cotton fiber, flax fiber, chemical fiber, etc.), metallurgy (magnesium powder, aluminum powder, carbon powder, etc.), grain processing (such as wheat, corn, grain, etc.), feed processing (blood meal, fish meal ), chemical fertilizers, tobacco, papermaking, synthetic materials (such as plastics, dyes), building materials and other places where combustible dust exists.
| Frame size | 80 - 355mm. |
|---|---|
| Rated power range | 0.55 - 315kW |
| Number of poles | 2 - 16 poles |
| Rated voltage | 380, 660, 380/660V. (Note: Basic series 3kW and below voltage 380V is Y connection, 3kW and above voltage 380V is △ connection; special voltage can also be manufactured) |
| Rated frequency | 50Hz |
| Insulation | 155 (F) class |
| Efficiency | Energy efficiency class 2/energy efficiency class 3 |
| Cooling method | IC411 |
| Installation method | IMB3 (other installation methods can also be manufactured). |
| Protection level | IP65, IP55 |
| Operating mode | S1 |
| Explosion-proof marks | Ex tD A21 IP65 T 130°C, Ex tD A22 IP65 T 130°C, Ex tD A22 IP55 T 130°C |
| Ambient air temperature | -15 - +40℃. |
| Altitude | no more than 1000m. |
(The special ambient air temperature and altitude need to be agreed by both parties, please mention it when ordering.)
Y FB 3-355 M 1-4 W
| Y- | asynchronous motor |
|---|---|
| F B | Dust explosion-proof type |
| 3 | Pole number |
| 355 | Frame Size |
| M | Seat length |
| 1 | No.1 core hub length |
| 4 | Poles |
| W | special environment code (outdoor type) |

For each order we can provide the technical data sheet, outline drawing, routine test report and, for explosion-proof motors, a copy of the Ex certificate that matches the nameplate marking. Tell us in the inquiry which documents your project or your inspector requires, so they are prepared before shipment.
For a fast, accurate quotation please send: rated power (kW), voltage and frequency, number of poles or speed, Ex marking or hazardous zone, mounting type, quantity and destination port. For a replacement, a photo of the old motor nameplate is the quickest way to match it.
Yes. Wolong Nanyang explosion-proof motors, both low-voltage and high-voltage, are available with ATEX and IECEx certificates for Europe and international projects, and GOST for the Russian market. Tell us which certificate you need when you ask for a quote.
Yes. For new projects we quote and select the model to your requirements. For a replacement, please send a nameplate photo or outline drawing of the old motor, and we will match the shaft height, mounting and installation dimensions.
Yes. Schorch, Brook Crompton and Morley belong to the Wolong Electric Group, and we can supply Wolong motors built to replace them, matched to your mounting dimensions.
Yes. We ship worldwide on CIF terms, or you can use your own forwarder. The usual production time is about 3 months, depending on the model and quantity.
Rated power (kW), voltage and frequency, number of poles or speed, Ex marking or hazardous zone, mounting type (e.g. B3, B35, V1), quantity and destination port. A nameplate photo of the old motor helps if it is a replacement.
Send us your requirements. An engineer will reply with a model check and price within 24 hours.