Position: Index > Unclassified >

AC and DC voltage latching relay

2017-08-15 19:10  
Declaration:We aim to transmit more information by carrying articles . We will delete it soon, if we are involved in the problems of article content ,copyright or other problems.

Alatching relayis a special kind of relay. While a conventional relay uses power continuously when its internal switch is to be closed (relay energised), a latching relay requires only a brief voltage pulse to change state. This makes latching relays perfect for any situation in which energy saving is important.The HllC supplies the de latching relay function and reverse polarity blocking, for currents up to 300 mA, depending on ambient temperature. For de use, the gate cathode resistor can be supplemented by a capacitor to minimize transient and dV/dt sensitivity. Forpulsating de operation, the capacitor value must be designated to either retrigger theSCRat the application of the next pulse or prevent retriggering at the next power pulse.If not, random or undesired operation might occur. For higher current contacts, the HllC canbe used to trigger an SCR capable of handling the current, as illustrated.High current latching relay designed for AC and DC voltage with a maximum current 100A DC (at 48VDC) or 120A AC (at 250VAC). The advantage of the lachting relay is that there is no need for continueous powering of the operating coil.The voltage of the operating coil is 12V DC.Contains one high-power working contact in two resting positions (ON-OFF) swiched by the coil.


 

Dc-latching-relay