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  2. MC4 connector - Wikipedia

    en.wikipedia.org/wiki/MC4_connector

    The MC3 connectors were discontinued in 2016. MC4 name stood for Multi-Contact and its size 4mm PV connectors, introduced by Multi-Contact in 2004. While small solar panels used for battery charging and similar tasks may not require special connectors, larger systems normally connect the panels together in series to form strings. In the past ...

  3. Electrical conduit - Wikipedia

    en.wikipedia.org/wiki/Electrical_conduit

    Galvanized rigid conduit (GRC) is galvanized steel tubing, with a tubing wall that is thick enough to allow it to be threaded. Its common applications are in commercial and industrial construction. [1] It is designed to protect wire and connectors. Intermediate metal conduit (IMC) is a steel tubing heavier than EMT but lighter than RMC. It may ...

  4. Electrical wiring in North America - Wikipedia

    en.wikipedia.org/wiki/Electrical_wiring_in_North...

    For example, NM 14-2 cable contains three conductors (two plus one ground) at 14 gauge, a size typically used for circuits protected at 15 amperes. Circuits with larger currents (such as for electric furnaces, water heaters, air conditioners, or sub-mains to additional circuit panels) will have larger conductors.

  5. Electrical wiring - Wikipedia

    en.wikipedia.org/wiki/Electrical_wiring

    Electrical panels, cables and firestops in an electrical service room at a paper mill in Ontario, Canada. Electrical panels are easily accessible junction boxes used to reroute and switch electrical services. The term is often used to refer to circuit breaker panels or fuseboxes. Local codes can specify physical clearance around the panels.

  6. IEC metric screw sized connectors - Wikipedia

    en.wikipedia.org/wiki/IEC_metric_screw_sized...

    The larger connector sizes are the most varied, with designated connectors ranging from analog and digital signals to AC and DC power. [ 4 ] Each "coding" has a different keyway that prevents incorrect connection between incompatibly keyed connectors.

  7. Category:Solar panel connectors - Wikipedia

    en.wikipedia.org/.../Category:Solar_panel_connectors

    Media in category "Solar panel connectors" This category contains only the following file. MC3 connector.png 1,675 × 929; 476 KB

  8. Circuit diagram - Wikipedia

    en.wikipedia.org/wiki/Circuit_diagram

    A circuit diagram (or: wiring diagram, electrical diagram, elementary diagram, electronic schematic) is a graphical representation of an electrical circuit. A pictorial circuit diagram uses simple images of components, while a schematic diagram shows the components and interconnections of the circuit using standardized symbolic representations.

  9. IEC 60309 - Wikipedia

    en.wikipedia.org/wiki/IEC_60309

    The cable connectors and sockets are keyed and colour-coded, according to the voltage range and frequency used; common colours for 50–60 Hz AC power are yellow for 100–130 volts, blue for 200–250 volts, and red for 380–480 volts. The blue fittings are often used for providing weather-proofed exterior sockets for outdoor apparatus.

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