- Industry: Electrical equipment
- Number of terms: 3137
- Number of blossaries: 0
- Company Profile:
UL Standard 489 Listed nonfused molded case circuit breakers which utilize a two-step stored energy closing mechanism, electronic trip system and drawout construction.
Industry:Electrical equipment
A qualifying term indicating that no delay is purposely introduced in the tripping action of the circuit breaker during short-circuit conditions.
Industry:Electrical equipment
The current level at which the circuit breaker will trip with no intentional time delay.
Industry:Electrical equipment
A circuit breaker so mounted that it cannot be removed without removing primary and sometimes secondary connections and/or mounting supports.
Industry:Electrical equipment
The level of ground-fault current at which the trip system begins timing.
Industry:Electrical equipment
An electronic accessory used in combination with thermal-magnetic circuit breakers to provide branch circuit ground-fault protection and ground-fault indication.
Industry:Electrical equipment
The length of time the circuit breaker trip unit will delay before initiating a trip signal to the circuit breaker after a ground fault has been detected.
Industry:Electrical equipment
An unintentional current path, through ground, back to the source.
Industry:Electrical equipment
The range of frequencies within which a product can be applied.
Industry:Electrical equipment
