The restart and reacceleration microprocessor based relays TEA and TEB are designed to perform the automatic motor restarting, after control and protection devices opening,as a consequence of a momentary line voltage interruption or drop-out.
The relay TEA is used in association with an holding position command contact, whereas the relay TEB is employed when motor start with START and STOP push buttons is provided.
Both are employed in conjunction with contactor based motor control circuits; the TEB also with circuit breakers having current injection close and trip coils.
This device is housed in a self-estinguishing isolating case, wich can be mounted on a standard supporting rail.