YEJ / YDEJ Series Electromagnetic Brake Motors
Product Overview
The YEJ and YDEJ series are improved electromagnetic brake motors, developed in accordance with JB/T6456 standards, with electrical performance meeting YE3 series technical specifications. These are fully enclosed, self-fan-cooled, squirrel-cage three-phase asynchronous motors equipped with a DC electromagnetic brake mounted on the non-shaft end. When power is cut off, the braking disc automatically engages the end shield, generating friction torque to stop the motor within 0.15–0.45 seconds (varies by frame size). The brake features spring-set actuation, power-off operation, manual release with automatic reset, and half-wave rectification.
Key Features
1.Rapid, precise braking: Spring-set brake engages upon power loss, ensuring quick stop, accurate positioning, and anti-slip performance.
2.Reliable electrical performance: Meets YE3 series efficiency standards with Class F insulation and IP54/IP55 protection.
3.Flexible mounting: Same mounting types as YE3 series (B3 foot, B5 flange, B35 foot-flange combined).
4.Durable construction: Available with cast iron or aluminum housing, copper winding as standard (aluminum optional).
Technical Specifications
Frame Size (Center Height) 71–225 mm
Power Range 0.12 – 45 kW (YEJ); 0.55 – 315 kW (broader range available)
Rated Voltage 380V (specials available upon request)
Rated Frequency 50Hz (60Hz available upon request)
Protection Class IP54 / IP55
Insulation Class F
Duty Type S1 (continuous)
Cooling Method IC411 (self-fan-cooled)
Ambient Temperature -15°C ~ +40°C
Altitude ≤ 1000m
Brake Controller Power Frame ≤100mm: AC220V (rectified to 99V DC); Frame ≥112mm: AC380V (rectified to 170V DC)
Applications
The YEJ/YDEJ series is widely used as the driving force in machinery requiring rapid stopping, precise positioning, reciprocating operation, and anti-slip protection. Typical applications include:
1.Machine tools and forging machinery
2.Printing and packaging machinery
3.Transport and conveying equipment
4.Food processing and woodworking machinery
5.Construction machinery and building material equipment
6.Roll doors and textile machinery
7.Chemical industry equipment
