Product Overview
Our independently developed and launched fully enclosed, self-ventilated, squirrel-cage high-efficiency explosion-proof three-phase asynchronous motor meets the energy efficiency grade 1 as specified in GB18613-2012 "Energy Efficiency Limit Values and Grades for Medium and Small Three-Phase Asynchronous Motors." It boasts excellent performance, safety, and reliability in use, with lower vibration and noise compared to similar products, and meets environmental protection requirements.
Application
Ideal for facilities where explosive gas mixtures are present in industries such as oil, chemical, mining, metallurgy, electricity, etc.
Model Description
The meaning of the explosion-proof symbol on electric motors:
Compliance Standards
YBX4 Extra High Efficiency Explosion Proof Three-Phase Asynchronous Motor conforms to the following main standards: GB 755 Rotating Electric Machines Rated Data and Performance
GB/T 1032 Test Methods for Three-Phase Asynchronous Motors
GB/T 1993 Rotating Electric Motor Cooling Method
GB 3836.1 Explosive Atmospheres Part 1: Equipment General Requirements
GB 3836.2 Explosive Atmospheres Part 2: Equipment protected by explosion-proof enclosures “d” GB/T 4942.1 Classification of Protection Class of the Overall Structure of Rotating Electric Machines (IP Code)
GB 10068 Mechanical Vibration of Electric Motors with Axial Center Height of 56mm and Above - Measurement, Evaluation, and Limit Values; GB/T 10069.1 Methods for the Measurement of Noise of Rotating Electric Machines - Part 1: Methods for the Measurement of Noise of Rotating Electric Machines
GB/T 10069.3 Method for Measuring and Limiting the Noise of Rotating Electric Machines – Part 3: Noise Limits
GB 18613 Efficiency Limits and Efficiency Grades for Small and Medium-sized Three-Phase Induction Motors
Basic Features
Bushing Number: 80-355.
Rated Power Range: 0.37～315 kW
Polarity: 2-8 poles
Rated Voltage: 380, 660, 380/660V, 400, 690, 400/690V. (Note: For the basic series, 3kW and below, 380V is Y-connected; above 3kW, 380V is delta-connected; special voltages can also be manufactured upon request.)
Rated Frequency: 50Hz or 60Hz
Insulation Class: 155 (F)
Efficiency: Grade 1 according to GB18613-2012
Cooling Method: IC411
Installation Method: IMB3 (other installation methods can also be manufactured).
Protection Level: IP55
Operation Mode: S1
Explosion-proof marking: Ex d II B T4 Gb, Ex d II C T4 Gb.
Indoor (standard configuration). Optional Configurations: Outdoor (W), Outdoor Medium Corrosion Resistance (WF1), Outdoor High Corrosion Resistance (WF2), Indoor Medium Corrosion Resistance (F1), Indoor High Corrosion Resistance (F2), Wet Tropical (TH), Dry Tropical (TA), Outdoor Wet Tropical (THW), Outdoor Dry Tropical (TAW).
Main Distribution Box
The main junction box is located at the top of the motor (viewed from the motor shaft extension end), with the outlet adjustable in four directions. However, when the outlet of the junction box with a center height of 160mm or more faces backward (towards the non-shaft extension end) due to the influence of the lifting ring, the lifting ring must be removed, the junction box cover opened, and the bolts connecting the junction box to the motor base loosened at the installation site. Then, adjust the outlet of the junction box to face backward.
Environmental Conditions:
Ambient air temperature: -15°C to +40°C. Altitude: Not exceeding 1000m.
Special environmental air temperature and altitude requirements must be agreed upon by both parties; please specify at the time of order.
