OVERLOAD RELAY

摘要

An overload relay with a thermal tripping mechanism for releasing the separable contacts of an associated circuit interrupter in response to overload currents. The tripping mechanism comprising a latch plate and a latch lever for moving the latch plate to the unlatched position. The latch lever being biased to the latched position and being movable by one or more bimetals in the relay to the unlatched position upon the occurrence of an overload current. The latch lever being pivotally mounted on one end of an adjustment rod, the other end of which is provided with adjusting means for longitudinally moving the rod to effect a change in the spacing between the pivot point and the latch plate on one end as well as the pivot point and the point of contact of the latch lever with the bimetal.