YEJ brake motor series models and key technical parameters (2-pole, 3000rpm)
H1: YEJ Brake Motor Series: Model Code Decoding & Technical Parameters Guide
H2: How to Read a YEJ Brake Motor Nameplate
When sourcing electromagnetic brake motors, the model code contains all the essential information you need. Let’s decode the standard YEJ nomenclature using the example:
YEJ - 90 - 1 - 4 - B5.
YEJ: Electromagnetic Brake Motor Series.
90: Motor center height (Frame size). Standard sizes range from 63 to 180.
1: Core length number (indicates the iron core length).
4: Number of poles (e.g., 2-pole for 3000rpm, 4-pole for 1500rpm).
B5: Mounting modality. Options include B3 (Foot mounted), B5 (Large flange), and B14 (Small flange).
H2: Technical Parameters (2-Pole, 3000rpm, 380V, 50Hz)
For high-speed applications, 2-pole YEJ motors deliver reliable stopping power. Below is an excerpt of the key performance data (from 0.18kW to 22kW):
| Type | Output (kW) | Speed (rpm) | Rated Torque (Nm） | Static Brake Torque (Nm） | Brake Rise Time (s) |
| YEJ-801-2 | 0.75 | 2840 | 2.52 | 7.5 | 0.10 |
| YEJ-112M-2 | 4.0 | 2880 | 13.3 | 40 | 0.15 |
| YEJ-132S1-2 | 5.5 | 2910 | 18.0 | 80 | 0.15 |
| YEJ-180M-2 | 22 | 2930 | 71.6 | 200 | 0.30 |
(Note: The static brake torque is significantly higher than the rated torque, ensuring safe, rapid stopping under standard loads.)
H3: Key Takeaways for Selection
Brake Torque vs. Rated Torque: For the YEJ series, the static brake torque typically provides a safety factor of about 2.5 to 3 times the rated torque (e.g., YEJ-112M-2 has 13.3Nm rated, but 40Nm braking).
Response Time: Brake rise time ranges from 0.10s for smaller frames to 0.30s for larger frames, which is excellent for high-frequency positioning applications.
H2: Need a Customized Brake Motor Solution?
Don't risk mismatching your load requirements. Whether you need a 2-pole high-speed or 4-pole standard motor, we provide exact drop-in replacements.
Talk to an Engineer: [Link] Send us your required power (kW), speed (rpm), and mounting type (B3/B5/B14) for a sizing check.
Request a Quote: [Link] Include your target quantity and required braking voltage (DC) for a rapid quotation.