ECN Forum Forums General Topics of the Trade Non-US Electrical Systems & Trades Voltage-Operated Earth-Leakage Circuit-Breaker

I've answered a query about the old British voltage-operated ELCB recently, and thought it a good opportunity to dig one out of my junk box and post some pictures.

This is the Crabtree E60 type, which was quite common in rural residential use in the 1960s and early 1970s. These old units were quite substantially built compared to their modern RCD counterparts, and this one is about 7 x 2 inches overall:





The supply enters via the top terminals, while the lower section contains the load terminals and the connections for the operating solenoid:



The lower cover displays a test instruction for the customer:


Along with some specifications inside:


On the rear is a small removable paxolin panel which gives access to the test button contacts and associated wiring:





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[This message has been edited by pauluk (edited 01-09-2004).]