YB Series Explosion-Proof Motor
- Rated voltage : 380V, 660V, 380/660V, 660/1140V (supports multi-voltage adaptation).
- Explosion-proof grade : ExdⅠ (underground coal mine), ExdⅡAT4/ⅡBT4/ⅡCT4 (factory gas environment).
- Insulation class : F-class, temperature rise is assessed according to B-class, protection level IP55 (some models IP54).
-
Power Range :
0.12kW-315kW (covering low power to high voltage motors).
- INTRODUCTION
- SPECIFICATION
- RELATED
- INQUIRY
YB Series Explosion-Proof Motor Technical Specifications
1. Overview
The YB series flameproof three-phase induction motor meets Ex d IIC T4 Gb/Ex tD A21 IP65 T135℃ certifications, designed for explosive gas/dust environments in petroleum, chemical, and mining industries.
2. Structural Design
Explosion-Proof Housing: Cast iron/steel construction (GB 3836.2 compliant joints)
Cooling System: IC411/IC416 cooling with optimized fins
Bearings: Deep groove ball bearings (2,000-8,000h lubrication intervals)
3. Technical Features
| Parameter | Specification |
|---|---|
| Protection Rating | IP55/IP65 |
| Temperature Range | -20℃~40℃ |
| Efficiency Class | IE3/IE4 (GB 18613-2020) |
4. Application Areas
Oil & Gas: Pipeline pumps, reactor agitators
Coal Mines: Ventilation fans, drainage pumps
Dusty Environments: Pharmaceutical mills, wood processing
5. Technical Parameters
| Model | Power | Voltage | Protection |
|---|---|---|---|
| YB2-160M-4 | 11 kW | 380/660V | IP55 |
| YB3-200L-2 | 30 kW | 380-1140V | IP65 |
6. Maintenance Protocol
Monthly: Inspect flame path gaps (≤0.2mm)
Biannual: Clean cooling channels
Lubrication: NLGI 3 grease every 2,000-5,000h
7. Compliance Standards
GB 3836.1-2010 (Explosive Atmospheres)
ATEX, IECEx, UL certifications (optional)
8. Product Comparison
| Feature | YB Series | YA Series |
|---|---|---|
| Protection Type | Ex d (Flameproof) | Ex e (Increased Safety) |
| Gas Group | IIC | IIA/IIB |
9. Summary
The YB series delivers safe operation in Zone 1/21 hazardous areas with 50,000+ hour MTBF. Key selection factors include gas group (IIC), temperature class (T4), and efficiency requirements (IE3/IE4).
| Model | Power (kW) | Voltage (V) | Speed (r/min) | Efficiency (%) | Ex Protection | IP Rating | Weight (kg) |
|---|---|---|---|---|---|---|---|
| YB2-80M1-2 | 0.75 | 380 | 2930 | 75 | Ex d IIC T4 Gb | IP55 | 18 |
| YBX3-132S-4 | 5.5 | 380/660 | 1440 | 89 | Ex db IIC T4 Gb | IP65 | 75 |
| YB3-160L-6 | 11 | 380/660/1140 | 970 | 90.5 | Ex d IIC T3 Gb | IP55 | 145 |
Technical Specifications:
Ex Standards: IEC 60079-0/1, ATEX 2014/34/EU compliant
Ambient Temperature: -20℃ to +40℃
Insulation Class: F (155℃)
Cooling Method: IC411 (TEFC)
Certifications: CNEx, NEPSI, IECEx, ATEX
Mounting: B3/B5/B35 flange types
Explosion Protection Marking Explanation:
Ex - Explosion-proof
d - Flameproof enclosure
IIC - Gas group (Hydrogen)
T4 - Temperature class (135℃)
Gb - Equipment protection level
* All values based on 50Hz operation at sea level
** Optional features: space heaters, PT100 sensors, special coatings
