Product Overview
The Shangli YBFBX5 series is a high-efficiency three-phase induction motor range combining flameproof protection for explosive gas atmospheres with enclosure-based protection against combustible dust ignition. It is designed to drive industrial equipment where the motor specification must meet defined hazardous-area requirements.
The catalog range covers frame sizes 80–355 and rated outputs from 0.18 to 315 kW, depending on the number of poles and motor configuration. Available pole counts are 2, 4, 6 and 8. Environmental variants can be specified for outdoor, tropical and moderately corrosive operating conditions.
Key Features
Gas and dust protection: catalog markings of Ex db IIC T4 Gb for explosive gas atmospheres and Ex tb IIIC T130°C Db for combustible dust atmospheres.
Broad selection range: multiple frame sizes, power ratings and pole counts to match different industrial drive requirements.
High-efficiency design: model-specific efficiency, current and power factor data support motor selection and energy-use assessment.
Installation options: foot-mounted, flange-mounted and combined mounting arrangements are illustrated in the catalog, subject to frame and model availability.
Environmental variants: options include outdoor, humid-tropical, outdoor tropical and outdoor moderate-corrosion configurations.
Technical Specifications
| Item | Specification |
|---|---|
| Series | YBFBX5 |
| Motor type | Three-phase induction motor |
| Protection concepts | Flameproof enclosure for gas; protection by enclosure for dust |
| Frame sizes | 80–355 |
| Rated output range | 0.18–315 kW, depending on pole count and model |
| Number of poles | 2, 4, 6 or 8 |
| Gas protection marking | Ex db IIC T4 Gb |
| Dust protection marking | Ex tb IIIC T130°C Db |
| Performance table frequency | 50 Hz basis. Confirm the applicable ratings and performance data when specifying a 60 Hz supply. |
| Catalog current reference | 380 V. Confirm the rated voltage, winding connection and current for the selected motor. |
| Efficiency | Refer to the model-specific performance data. Any required IE efficiency class must be confirmed separately. |
| Explosion-protection standards listed | GB/T 3836.1-2021; GB/T 3836.2-2021; GB/T 3836.31-2021 |
| Environmental options | W, TH, WTH, WT and WF1 |
Specifications vary by model. The final motor nameplate, applicable certificate and approved technical documentation govern the supplied configuration.
Power Range by Pole Count
| Number of Poles | Catalog Output Range | Synchronous Speed at 50 Hz |
|---|---|---|
| 2 | 0.75–315 kW | 3,000 rpm |
| 4 | 0.55–315 kW | 1,500 rpm |
| 6 | 0.37–250 kW | 1,000 rpm |
| 8 | 0.18–200 kW | 750 rpm |
Synchronous speed is a reference value, not the motor's rated operating speed. Use the selected model's rated speed and torque data when matching the motor to the driven equipment.
Understanding the Gas and Dust Protection Markings
Gas Protection: Ex db IIC T4 Gb
The gas marking identifies flameproof enclosure protection, gas group IIC, temperature class T4 and equipment protection level Gb. T4 corresponds to a maximum equipment surface temperature of 135°C under the specified conditions.
Dust Protection: Ex tb IIIC T130°C Db
The dust marking identifies protection by enclosure, dust group IIIC, a marked maximum surface temperature of 130°C and equipment protection level Db. Dust selection must also account for the material's ignition characteristics, dust layers and the installation conditions.
Gas and dust markings describe different protection requirements. A dual marking does not, by itself, establish suitability for a simultaneous gas-and-dust hybrid mixture. Confirm the hazardous-area classification, ambient conditions and certificate limitations before selecting a motor.
Typical Application Sectors
The YBFBX5 series can be considered for industrial drives in the following sectors, where the selected motor's protection marking and certified operating conditions match the application:
Chemical and petrochemical processing: equipment operating in classified explosive gas environments.
Food and agricultural processing: equipment handling combustible materials such as flour, cocoa and other organic dusts.
Wood and paper processing: machinery in areas where combustible wood or paper dust may occur.
Textile processing: equipment associated with combustible fibres, dust and flyings.
Plastics, resins and powder processing: industrial drives requiring assessment for combustible dust exposure.
An industry name alone is not sufficient to establish suitability. Provide the specific gas or dust characteristics and site classification for technical review.
Environmental Configuration Options
| Suffix | Configuration |
|---|---|
| W | Outdoor version |
| TH | Indoor humid-tropical version |
| WTH | Outdoor humid-tropical version |
| WT | Outdoor tropical version |
| WF1 | Outdoor version for moderately corrosive environments |
Specify the required environmental configuration when ordering. These suffixes do not replace confirmation of ambient temperature, humidity, corrosion exposure or hazardous-area approval requirements.
Mounting and Overall Dimensions
The catalog illustrates IM B3, IM B5, IM B35, IM B14, IM B34 and IM V1 mounting arrangements. Availability depends on the selected frame size and motor configuration; not every arrangement is available across the full range.
Before finalizing an equipment layout or replacement installation, request the model-specific dimensional drawing. Check the shaft height, shaft extension, foot-hole spacing, flange dimensions, terminal box position, cable entries and overall length.
Information Required for Selection and Quotation
To help our Huzhou team identify the appropriate YBFBX5 configuration, please provide:
Required output in kW and operating speed or number of poles.
Supply voltage, frequency and starting or drive method.
Driven equipment, load characteristics and operating duty.
Gas or dust classification and the required protection marking.
Ambient temperature, altitude and indoor or outdoor conditions.
Mounting arrangement and any dimensional restrictions.
Destination country and required product approvals.
Quantity, delivery requirements and any special configuration.
For replacement enquiries, include a clear photograph of the existing motor nameplate and its installation dimensions. For variable-frequency operation, request confirmation of suitability and the permitted operating range before ordering.