RCCB Demonstration

Description

This apparatus is a companion to the Circuit Breaker Demonstration (10-170). It shows all the
working parts of a modern RCCB type fuse as used in domestic consumer units. The apparatus
is contained within a robust plastic tray with protective acrylic cover and includes a clear circuit
layout on the main panel. Applications of electromagnetism (movement from a solenoid) are clearly
demonstrated as well as the performance of the RCCB itself. The apparatus required a 12V A.C.
supply (available as an accessory E1635 if required) and an oscilloscope if signal monitoring is
required. A switch on the main panel is used to create a leakage path to “Earth” and this produces
an immediate response from the solenoid to disconnect the supply. The solenoid can be disabled
to allow for a more detailed analysis of the action. This unit should prove invaluable to those wishing
to show how this type of device operates as well as for teachers requiring an additional aid to
show applications of electromagnetic devices. SP4-0939