The JR36 Thermal Overload Relay Service Manual provides installation, operation, maintenance, and troubleshooting instructions for the JR36 series relays.
This manual covers the scope, operating conditions, and installation requirements for the JR36 series double‑metallic plate thermal overload relays. It details the relay's structure, working principle, and technical parameters, and provides guidance on proper wiring, adjustment, and safety precautions.
Key sections include step‑by‑step installation, adjustment of the setting current, manual and automatic reset procedures, maintenance tips, fault analysis, warranty information, and ordering instructions, ensuring reliable overload and phase‑loss protection for AC motors. This manual is written in Chinese.
| Rated Voltage | 660 V AC |
|---|---|
| Rated Current Range | 0.25–160 A |
| Operating Temperature Range | -5 °C to +40 °C |
| Maximum Installation Altitude | 2000 m |
| Maximum Relative Humidity | ≤50 % at +40 °C |
The relay must be installed in locations without explosion risk or corrosive gases and should be protected against moisture, dust, impact, and vibration.
Press the red reset button; in manual‑reset mode the relay will reset within 2 minutes after tripping when the button is pressed.