Digital Residual Current Circuit Breaker Tester model MD1015 no.8510
1970-1989
Lash-up electrical circuit breaker
circa 1930
J.H. Tucker & Co circuit breaker
circa 1915
Telephone Line Cut-Out Switch
1895-1905
British Thomson-Houston circuit breaker
Metalclad circuit breaker
1905
Sectioned circuit breaker head
1950-1974
22 KV Ferguson Pailin water circuit breaker
Circuit Breaker with Three Resistors
Circuit breaker
Whitney-Wedmore Experimental Air-Blast Circuit Breaker
Gas-filled vacuum recloser type GVR serial no. GVRB 13000997
1997
Crompton oil circuit breaker - 1916
1916
Spring operated circuit breaker
1905
Crompton oil circuit breaker -1908
1908
Free handle circuit breaker
Fourteen relays and circuit breakers
One old type circuit breaker assembly
Three phase oil immersed circuit breaker
15 Amp circuit breaker
Switch panel containing circuit breakers
Model of a sub-station circuit breaker
1950-1957
Model of an air blast circuit breaker
1945-1957
spring operated circuit breaker
1905