Overview

The JRS1N Series Thermal Overload Relay is mainly applied in circuits with AC 50 Hz, rated working voltage up to 660 V and rated working current of 0.1–630 A, which is used to start and accelerate the motor to a normal speed, as well as for overload and phase failure protections of circuits and three-phase AC motors, and can form a starter with the adaptive AC contactor. Models of the same type: LR2/JR28. This product can perfectly replace JRS1.

The product complies with GB/T 14048.4.

Normal working and installation conditions

1. Ambient temperature: Normally working temperature -5℃~ +40℃.Average value in 24 hours≤+35℃. 

2. Altitude: ≤2000m 

3. Atmospheric conditions: The relative humidity of the air does not exceed 50% at the temperature of +40℃. Higher relative humidity permitted at lower temperature, for example 90% relative humidity at 20℃. Special measures are necessary in case of occasional condensation due to variations in temperature. 

4. Pollution degree: 3 

5. Installation category: III 

6. Mounting condition: inclination between mounting plane and vertical plane not exceeds 5

7. In addition to screws, the relay can also be installed with 35 mm standard guide rail.

8. Impact vibration: The relay shall be installed and used in a place free of significant shaking, shock and vibration.

9. Transportation and storage: The relay shall not be subjected to severe collision and vibration during the transportation, and shall not be attacked by rain and snow during the transportation and storage. The relay is suitable for the transportation and storage at a temperature between -25°C and +55°C, which can reach +70°C in a short time (within 24 h).