Type of residual current BType B residual current circuit-breakers are AC-DC sensitive.Type of residual current BType B residual current circuit-breakers are AC-DC sensitive. Categories Downloads Prospectus Circuit-breaker overview - [ 2679 KB ] Technical information derating graph - [ 121 KB ] tripping characteristic B With tripping characteristic B, these circuit-breakers ensure reliable… tripping characteristic C With tripping characteristic C, these circuit-breakers ensure reliable… Technical informationsType B residual current circuit-breakers are AC-DC sensitive.