YJ-80/30 oil flow relayDetailed product description：

YJ-80/30 oil flow relay is used to protect and supervise the operation of transformer oil pumps used in forced oil air coolers and forced oil coolers, and monitor whether the oil pumps are reversed
Check if the valve is open and if the oil flow is normal.

Working conditions:
The ambient temperature ranges from -30 ℃ to 45 ℃.
Relative humidity: When the air temperature is+25 ℃ or ± 5 ℃, the relative humidity should not exceed 90%. Temperature not exceeding 90 ℃