JL12 series overcurrent relay
1. Scope of application
The JLl2 series overcurrent delay relay is suitable for a voltage of 380V and a current of
In the circuit with a frequency of 50Hz from 5A to 300A, this relay is mainly used for lifting
The starting overload and overcurrent protection of wound motor in mechanical equipment.

2. Model

3. Main technical parameters
The rated current of the contacts of the relay is 5A, and the rated current specifications of the coils are: 5, 10, 15, 20, 30, 40, 50, 60, 75, 100, 150, 200, and 300A.
The characteristics of the relay should comply with the provisions in the following table after being annealed at an ambient temperature of -25 ° C to+40 ° C.



4. Use and maintenance
When the ambient temperature is -25~C -+40~C, the temperature change affects the viscosity of silicone oil, causing a change in the action time of the relay. Therefore, the adjustment screw at the lower end of the relay can be adjusted to meet special requirements.
The relay uses colorless transparent silicone oil as the damping liquid for the oil label. If the silicone oil deteriorates, it must be replaced with (201-100 methyl silicone oil) and cannot be replaced with other oils.
During repair, it was found that the rubber cap on the door stopper was damaged. It can be purchased from the manufacturer.

5. External dimensions and installation dimensions

JL12 series overcurrent delay relay