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  2. Circuit total limitation - Wikipedia

    en.wikipedia.org/wiki/Circuit_total_limitation

    The 2008 code did away with the previous 42 circuit limitation on panelboards. [3] One can now order panelboards with as many as 84 circuit places, and a corresponding ampacity rating. If a panelboard with a sufficient number of breaker positions is installed in the first place, the need for non-CTL breakers should be eliminated.

  3. Category:ATC codes - Wikipedia

    en.wikipedia.org/wiki/Category:ATC_codes

    Pages in category "ATC codes" The following 110 pages are in this category, out of 110 total. This list may not reflect recent changes. ...

  4. Recloser - Wikipedia

    en.wikipedia.org/wiki/Recloser

    To prevent electric power distribution network damage, each station along the network is protected with circuit breakers or fuse cutouts which turn off power in the event of a short circuit. These protection solutions present a major problem when restoring power immediately following transient events, because repair crews need to manually reset ...

  5. Fuse (electrical) - Wikipedia

    en.wikipedia.org/wiki/Fuse_(electrical)

    A circuit breaker at 115 kV may cost up to five times as much as a set of power fuses, so the resulting saving can be tens of thousands of dollars. [ citation needed ] In medium-voltage distribution systems, a power fuse may be used to protect a transformer serving 1–3 houses.

  6. Resettable fuse - Wikipedia

    en.wikipedia.org/wiki/Resettable_fuse

    A resettable fuse or polymeric positive temperature coefficient device (PPTC) is a passive electronic component used to protect against overcurrent faults in electronic circuits. The device is also known as a multifuse or polyfuse or polyswitch .

  7. Automotive fuse - Wikipedia

    en.wikipedia.org/wiki/Automotive_fuse

    Automobile electrical circuit breaker with resettable switch. Automotive fuses are a class of fuses used to protect the wiring and electrical equipment for vehicles. They are generally rated for circuits no higher than 32 volts direct current, but some types are rated for 42-volt electrical systems. They are occasionally used in non-automotive ...

  8. Circuit breaker - Wikipedia

    en.wikipedia.org/wiki/Circuit_breaker

    The DIN-rail-mounted thermal-magnetic miniature circuit breaker is the most common style in modern domestic consumer units and commercial electrical distribution boards throughout Europe. The design includes the following components: Actuator lever – used to manually trip and reset the circuit breaker. Also indicates the status of the circuit ...

  9. Residual-current device - Wikipedia

    en.wikipedia.org/wiki/Residual-current_device

    A residual-current device (RCD), residual-current circuit breaker (RCCB) or ground fault circuit interrupter (GFCI) [a] is an electrical safety device, more specifically a form of Earth-leakage circuit breaker, that interrupts an electrical circuit when the current passing through line and neutral conductors of a circuit is not equal (the term residual relating to the imbalance), therefore ...

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