Patent ID: 8553374
Filing Date: 2013-10-08
Classification: H01H

Abstract:
1. A modular circuit arrangement for switching electrical power, the arrangement comprising: an electromechanical relay including a control circuit, a relay coil and a mechanical switch accommodated in a relay housing including a connector; an adapter including a semiconductor relay and a control unit accommodated in an adapter housing and provided with a first connection configured to be connected to the control circuit, a second connection configured to be connected to the mechanical switch, a third connection configured to he connected to a load, and a fourth connection configured to be connected to a relay socket; the relay socket including first connecting contacts configured to be coupled to the fourth connection, and second connecting contacts configured to be connected to a voltage source, wherein the adapter is mechanically detachable and electrically connectable to the relay socket, wherein the electromechanical relay is mechanically detachable and electrically connectable to the adapter, wherein, in a connected condition of the modular circuit arrangement, the semiconductor relay is connected in parallel to the mechanical switch in the relay housing, and wherein the control unit is configured to actuate the electromechanical relay and the semiconductor relay at different times.