Abstract: An appliance includes a plurality of electrical loads and a load control circuit including at least a clock enable circuit and a full power timer. The clock enable circuit is configured and operatively connected to activate the full power timer when all of the loads are energized, and the full power timer is configured and operatively connected to de-energize at least one load selected from the plurality of loads on reaching a predetermined full power time limit.

Abstract: A heater has two, hollow, half-cylindrical heat guides fastened to each other at one side by an articulated connector and at the other side by a bolted joint. Internal surfaces of the heat guides represent the shape of the object being heated. On external surfaces of the heat guides, there are a series of, preferably flat splines. Lamellar heating elements are fastened to the splines. Mutual adherence surfaces of the heating elements and splines are shaped according to geometrical patterns, the appropriate selection of which changes the thermal characteristics of the heater over a wide range. The heater may be supplied from single- or three-phase mains. The heater is applicable especially for heating the cylinders, nozzles and tools of injection moulding and extrusion machines.