![](https://coimages.sciencemuseumgroup.org.uk/469/112/large_thumbnail_smg00285089.jpg)
![](https://coimages.sciencemuseumgroup.org.uk/469/112/large_thumbnail_smg00285089.jpg)
![](https://coimages.sciencemuseumgroup.org.uk/389/696/large_thumbnail_smg00062431.jpg)
Digital Residual Current Circuit Breaker Tester model MD1015 no.8510
1970-1989
![](https://coimages.sciencemuseumgroup.org.uk/338/504/large_thumbnail_smg00026514.jpg)
Lash-up electrical circuit breaker
circa 1930
![](https://coimages.sciencemuseumgroup.org.uk/477/451/large_thumbnail_smg00246899.jpg)
Telephone Line Cut-Out Switch
1895-1905
![](https://coimages.sciencemuseumgroup.org.uk/234/115/large_thumbnail_cd0214_004_060530_hb024_1974_34_72_electric_switch_circuit_breaker.jpg)
J.H. Tucker & Co circuit breaker
circa 1915
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
Crompton oil circuit breaker - 1916
1916
Spring operated circuit breaker
1905
Crompton oil circuit breaker -1908
1908
Gas-filled vacuum recloser type GVR serial no. GVRB 13000997
1997
Free handle circuit breaker
Whitney-Wedmore Experimental Air-Blast Circuit Breaker
One old type circuit breaker assembly
Three phase oil immersed circuit breaker
15 Amp circuit breaker
spring operated circuit breaker
1905
Model of a sub-station circuit breaker
1950-1957
Model of an air blast circuit breaker
1945-1957