YBFBX5-80M is the 80M frame size (shaft height H = 80 mm) of the Shangli YBFBX5 series of flameproof and dust ignition-proof high-efficiency three-phase induction motors. It covers 0.18–1.1 kW in 2 / 4 / 6 / 8-pole versions, with Ex marking Ex db IIC T4 Gb / Ex tb IIIC T130°C Db for both explosive gas and combustible dust atmospheres. The tables below list performance data, mounting dimensions and outline drawings for all 8 standard models on this frame.
- Series
- YBFBX5 Series Flameproof and Dust Ignition-Proof High-Efficiency Three-Phase Induction Motors
- Frame size / shaft height
- 80M / H = 80 mm
- Output range
- 0.18–1.1 kW
- Poles
- 2 / 4 / 6 / 8
- Ex marking
- Ex db IIC T4 Gb / Ex tb IIIC T130°C Db
- Rated voltage
- 380 V; at other voltages current I = IN × 380 / U
- Rated frequency
- 50 Hz
- Cooling
- IC411
- Efficiency
- See performance data for each model
- Mounting
- IMB3, IMB5, IMB35, IMV1, IMB14, IMB34 and others
Performance data
| Model | Output kW | Output HP | Poles | Speed r/min | Current A (380 V) | Torque N·m | Efficiency % | Power factor cosφ | Locked-rotor torque / rated torque | Locked-rotor current / rated current | Breakdown torque / rated torque | Noise LpA dB(A) | Weight kg |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| YBFBX5-80M1-2 | 0.75 | 1.01 | 2 | 2825 | 1.59 | 2.54 | 86.3 | 0.83 | 2.3 | 10 | 2.3 | 56 | 50 |
| YBFBX5-80M2-2 | 1.1 | 1.5 | 2 | 2825 | 2.29 | 3.72 | 87.8 | 0.83 | 2.3 | 9 | 2.3 | 56 | 53 |
| YBFBX5-80M1-4 | 0.55 | 0.74 | 4 | 1390 | 1.29 | 3.78 | 86.7 | 0.75 | 2.3 | 10 | 2.3 | 50 | 45 |
| YBFBX5-80M2-4 | 0.75 | 1.01 | 4 | 1390 | 1.72 | 5.15 | 88.2 | 0.75 | 2.3 | 8 | 2.3 | 50 | 48 |
| YBFBX5-80M1-6 | 0.37 | 0.5 | 6 | 910 | 0.98 | 3.88 | 81.6 | 0.7 | 1.9 | 10 | 2.0 | 49 | 48 |
| YBFBX5-80M2-6 | 0.55 | 0.74 | 6 | 910 | 1.38 | 5.77 | 84.2 | 0.72 | 1.9 | 9 | 2.1 | 49 | 53 |
| YBFBX5-80M1-8 | 0.18 | 0.24 | 8 | 710 | 0.62 | 2.42 | 71.9 | 0.61 | 1.8 | 7.5 | 1.9 | 49 | 48 |
| YBFBX5-80M2-8 | 0.25 | 0.34 | 8 | 710 | 0.83 | 3.36 | 75.2 | 0.61 | 1.8 | 7.9 | 2.0 | 49 | 53 |
Values at 380 V, 50 Hz; efficiency applies at 75–100% load and noise is the no-load sound pressure level. At voltages other than 380 V, current I = IN × 380 / U and other values are unchanged. For 60 Hz motors, add 6 dB(A) to the no-load noise of 2-pole frames 200–355 and 5 dB(A) for other pole numbers. Final values are those in the routine test report.
Mounting dimensions (mm)
| Applies to | A | B | C | H | K | D | E | F | G |
|---|---|---|---|---|---|---|---|---|---|
| All pole numbers on this frame | 125 | 100 | 50 | 80 | 10 | 19 | 40 | 6 | 15.5 |
| Flange | M | N | P | R | α | Holes × dia. | T |
|---|---|---|---|---|---|---|---|
| FF165 | 165 | 130 | 200 | 0 | 45° | 4×Φ12 | 3.5 |
| Flange | M | N | P | R | α | Holes × dia. | T |
|---|---|---|---|---|---|---|---|
| FF100 | 100 | 80 | 120 | 0 | 45° | 4×M6 | 3.0 |
| AA | AB | AC | AD | BB | HA | HD | HE | LA |
|---|---|---|---|---|---|---|---|---|
| 34 | 160 | 165 | 180 | 130 | 10 | 300 | 340 | 12 |
| Applies to | IMB3 / IMB5 / IMB35 etc. | IMV1 |
|---|---|---|
| All pole numbers on this frame | 325 | 385 |
| Single entry | Double entry |
|---|---|
| M30×2 | — |
YBFBX5 motors share the mounting dimensions of YBX3, YBX4 and YBX5 flameproof motors of the same frame size. Source: Shangli general motor catalogue. HE is the overall height of flange-mounted versions; overall length L varies slightly with terminal box and mounting arrangement and is confirmed on the approval drawing.
Outline drawings
Selection notes
- Ex marking Ex db IIC T4 Gb / Ex tb IIIC T130°C Db: the first covers explosive gas atmospheres in surface industry, including IIC gases such as acetylene, hydrogen and carbon disulphide; the second covers combustible dust, fibres and flyings. Choose this series where gas and dust may both be present, for example in flour, starch, plastics, resin and chemical raw-material processing.
- For dust applications, state the dust type and its cloud and layer ignition temperatures so that the T130°C surface temperature limit can be checked against the site.
- The standard version is for indoor use. Outdoor (W), indoor humid tropical (TH), outdoor humid tropical (WTH), outdoor tropical (WT) and outdoor medium anti-corrosion (WF1) versions are available; please state this in your enquiry.
- Values are for 380 V, 50 Hz. At other voltages the rated current is I = IN × 380 / U. Please state 60 Hz or other voltages in the selection form.
Frequently asked questions
Can the YBFBX5-80M replace a YBX flameproof motor on the same frame?
Yes, for mounting. YBFBX5 motors share the mounting dimensions of YBX3, YBX4 and YBX5 flameproof motors of the same frame size. The 80M frame has a shaft height of 80 mm; see the dimension tables above. Choose YBFBX5 where combustible dust is present.
What is the difference between YBFBX5 and YBX5?
YBX5 is for explosive gas atmospheres only. YBFBX5 combines flameproof gas protection (Ex db IIC T4 Gb) with dust ignition protection by enclosure (Ex tb IIIC T130°C Db), for sites where gas and dust may both occur. Mounting dimensions are the same.
What is the Ex marking of the
Ex db IIC T4 Gb / Ex tb IIIC T130°C Db. Explosion protection complies with GB/T 3836.1-2021, GB/T 3836.2-2021 and GB/T 3836.31-2021.
How can I get CAD drawings and the Ex certificate for the
Complete the selection form at the bottom of this page with the model, the gas or dust present at site, mounting arrangement and file format required (DWG, STEP or PDF). Our sales team will send the drawings, certificate documents and a quotation.