Specification for residual current-operated circuit breaker / 
Standards and Industrial Research Institute of Malaysia 
 - Shah Alam :  Standards and Industrial Research Institute of Malaysia ,  1989 
 - 27 p. :  ill. 
 - Malaysian standard ;  MS 1139 : 1989 .
 - Malaysian standard ;  MS 1139 : 1989 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electric circuit-breakers