When.com Web Search

  1. Ads

    related to: obsolete circuit breakers supply

Search results

  1. Results From The WOW.Com Content Network
  2. Stab-Lok - Wikipedia

    en.wikipedia.org/wiki/Stab-Lok

    Interior of a Federal Pacific Electric Stab-Lok circuit breaker panel. Stab-Lok is a brand name of electrical circuit breakers that were manufactured primarily by Federal Pacific Electric from 1950 to 1980.

  3. Knob-and-tube wiring - Wikipedia

    en.wikipedia.org/wiki/Knob-and-tube_wiring

    The failure of a neutral fuse would cut off power flow through the affected circuit, but the hot conductor could still remain hot relative to ground, an unexpected and potentially hazardous situation. Because of the presence of a neutral fuse, and in the event that it blew, the neutral conductor could not be relied on to remain near ground ...

  4. Electrical wiring in the United Kingdom - Wikipedia

    en.wikipedia.org/wiki/Electrical_wiring_in_the...

    A circuit breaker triggered by detection of an electric arc; breaks circuit on detecting an electric arc, which could develop from the likes of loose wires. Earth leakage circuit breaker (ELCB) An obsolete circuit breaker triggered by voltage on the earth wiring.

  5. Zinsco - Wikipedia

    en.wikipedia.org/wiki/Zinsco

    Zinsco would remain with copper in both their panels and breakers until the third major copper shortage in the early 1960s, when they would switch to an aluminum bus. In 1963, Zinsco introduced the R-38 twin breaker, which was the only twin circuit breaker that also made contact on both bus-bars for 240 volts in a single breaker space.

  6. Electrical wiring - Wikipedia

    en.wikipedia.org/wiki/Electrical_wiring

    Each phase of the circuit is run in a separate grounded metal enclosure. The only fault possible is a phase-to-ground fault, since the enclosures are separated. This type of bus can be rated up to 50,000 amperes and up to hundreds of kilovolts (during normal service, not just for faults), but is not used for building wiring in the conventional ...

  7. Federal Pacific Electric Corporation - Wikipedia

    en.wikipedia.org/wiki/Federal_Pacific_Electric...

    The company, in its earliest form as Federal Electric, a lighted sign company, was founded in 1901. It later made home and kitchen appliances, neon signs, police sirens, and circuit-breakers. Everything but circuit-breakers had been spun off or sold off to other companies by the 1940s, and the name was changed to Federal Pacific Electric.