Magnetic latching is achieved by a specially designed magnetic core that makes it possible to maintain a substantial magnetic force of attraction after termination of the electrical pulse that energizes the core. There are no mechanical latches associated with this relay, nonpermanent magnets. To restore the relay to its unoperated position, assort pulse of opposite polarity and lower magnitude than the operate pulse is applied to the coil or a second concentric wound coil.

Magnetic latching is achieved by a specially designed magnetic core that makes it possible to maintain a substantial magnetic force of attraction after termination of the electrical pulse that energizes the core. There are no mechanical latches associated with this relay, nonpermanent magnets. To restore the relay to its unoperated position, assort pulse of opposite polarity and lower magnitude than the operate pulse is applied to the coil or a second concentric wound coil.