JY1 series speed relayDetailed product description：

Model parameters:

1、 JY-1 speed control relay is mainly used in the reverse braking circuit of three-phase squirrel cage motors, and can also be used in the energy consumption braking circuit of asynchronous motors, as an automatic cut-off of DC power supply after the motor stops running.
2、 The JY-1 speed control circuit breaker reliably operates below 3000 revolutions per minute in continuous operation mode, and does not exceed 30 times per minute in repeated short-term operation mode (frequent starting and braking).
3、 The JY-1 speed control relay can operate when the relay shaft speed is around 150 revolutions per minute. Contact points resume working position below 100 revolutions per minute.
4、 Strength resistance: It should be able to withstand a voltage of 1500 volts at 50Hz for one minute.
5、 Insulation resistance: At a temperature of 20 ℃ and a relative temperature not exceeding 80%, it should not be less than 100 megaohms.
6、 Working environment: Temperature range of -50 ℃ to+50 ℃, relative temperature not exceeding 85% (20 ℃± 5).
7、 The contact current is less than or equal to 2A, and the voltage is less than or equal to 500V.
8、 Contact life: not less than 100000 times under rated load.  

Notes:
1、 Relays should be protected against shock, moisture, and dust during transportation.
2、 Packaged relays can be transported in any way, but they should be protected from direct rain.

JY1 speed relay is an induction type speed relay that operates based on the principle of electromagnetic induction. It is widely used for speed control and reverse control of mechanical moving parts in the production of fast parking. Such as lathe spindle, milling machine spindle, etc. The JY1 speed relay has the characteristics of simple structure, reliable operation, and low price, so it is still widely used in many production machinery today.