YBBP280S-4 Explosion-proof Variable Frequency Three-phase Asynchronous 440v 3 Phase Motor

Brief Introduction

The SIMO YBBP series is a high-performance 440V 3 phase motor engineered for explosive atmospheres, combining flameproof integrity with variable-frequency speed control. Designed for industries such as mining, petrochemicals, and heavy manufacturing, this motor delivers reliable operation under extreme conditions while maintaining precise torque and speed regulation. Its robust construction and advanced insulation system ensure long-term durability, making it an ideal choice for applications where safety and efficiency are paramount.

At the core of the YBBP series is its compliance with Ex db IIB T4 Gb explosion-proof standards, ensuring safe operation in environments with flammable gases or dust. The motor operates at 440V with a frequency range of 5–100 Hz, enabling smooth acceleration and deceleration without mechanical stress. With a rated efficiency of 94.0% and power factor of 0.87, it minimizes energy loss while maximizing output. The thermal class F insulation allows continuous operation at ambient temperatures up to 40°C, and its IP55 protection rating safeguards against dust and water ingress. The motor's design includes optimized cooling channels and high-grade bearings (DE: 6317/C3, NDE: 6314/C3) to withstand heavy loads and prolonged use.

Manufactured by Xi'an SIMO Motor Co., Ltd., the YBBP series adheres to international standards including JB/T11201.1-2011 and carries certification CNEx23.5841X. It is suitable for altitudes up to 1000 meters and weighs approximately 622 kg, reflecting its industrial-grade build quality. The motor's variable-frequency capability allows seamless integration with modern drive systems, offering dynamic response and energy savings across varying load conditions. Whether used in conveyor systems, pumps, or compressors, this 440V 3 phase motor ensures consistent performance with minimal maintenance.

In summary, the SIMO YBBP series stands as a benchmark for safety-critical industrial motors. Its combination of explosion-proof design, high efficiency, and wide-speed operation makes it indispensable in hazardous environments. As a 440V 3 phase motor, it not only meets but exceeds global safety and performance benchmarks, providing engineers and operators with a dependable solution that enhances productivity while safeguarding personnel and infrastructure. For industries demanding uncompromising reliability, the YBBP series delivers peace of mind through proven engineering and rigorous certification.

Main Technical Parameters

Production Details

Frame

• Compact and robust iron casting frame

• Universal IEC installation dimensions available

• Customizable

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Stator

• 99.9% pure copper winding for stator to ensure the efficiency

• Excellent insulation system with 5 more processing flows

• All the windings are fitted in by handwork to ensure all slots are full and avoid any winding flaw.

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Rotor

• Aluminum casting rotor with high quality silicon steel rotor core to assure induction efficiency

• Well and precisely machined shafts with good capacity of strength and toughness

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Testing

• All motors must pass the piece testing before painting and packaging

• Type tests will be regularly performed for each series, more often for new developed series and variants.

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Package and delivery

• Plastic cover inside, vacuum tin foil outer and then solid wood box

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Applications

The YBBP  Explosion Proof Motor is widely applied in coal mine, petrochemical industry or other industry which may exposed to explosive environment. It can drive blower, water pump and other machines.

Chemistry

Coal mining

Metallurgy

Oil gas

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