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Motors | YB3 Series
YB3 Series Explosion-Proof Three-Phase Asynchronous Motor
Product Overview
YB3 series explosion-proof three-phase asynchronous motors are certified for hazardous areas containing flammable gases, vapors or combustible dusts, featuring flameproof enclosure and enhanced safety design.
Key Features
- Ex d IIB T4 Gb explosion-proof certification for Zone 1 and Zone 2 hazardous areas
- Flameproof enclosure preventing internal explosions from igniting external explosive atmosphere
- Reinforced terminal box with specialized cable entry glands ensuring safe electrical connections
- Non-sparking external fan design eliminating potential ignition sources during operation
- Heavy-duty cast iron construction providing mechanical strength and effective heat dissipation
- Special bearing arrangement with temperature monitoring capability for early fault detection
- Anti-static paint coating preventing electrostatic discharge accumulation on motor surface
- Certified for petroleum, chemical, mining and pharmaceutical hazardous environments
- Compliant with ATEX, IECEx and Chinese national explosion-proof standards GB3836
Technical Specifications
| Power Range | 0.75 ~ 315 kW |
| Voltage | 380V / 660V / 1140V |
| Frequency | 50Hz / 60Hz |
| Speed | 3000 / 1500 / 1000 rpm |
| Explosion Marking | Ex d IIB T4 Gb |
| Protection Rating | IP55 |
| Insulation Class | Class F |
| Temperature Class | T4 (135°C max surface) |
Applications
- Petroleum refineries and oil platforms
- Chemical processing and storage facilities
- Natural gas processing and distribution plants
- Paint spraying booths and coating production lines
- Grain silos and flour milling operations
- Pharmaceutical manufacturing cleanrooms
- Coal mining underground operations
- Solvent handling and distillation units
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