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  2. NEMA contact ratings - Wikipedia

    en.wikipedia.org/wiki/NEMA_contact_ratings

    NEMA contact ratings are how much current at a rated voltage a relay or other pilot device can switch. The current rating of smaller NEMA contactors or their auxiliaries are defined by NEMA ICS 5: Industrial Control and Systems, Control Circuit and Pilot Devices [1] standard. The nomenclature is a letter followed by a three-digit number, the ...

  3. IEC 60309 - Wikipedia

    en.wikipedia.org/wiki/IEC_60309

    The standard includes preferred current ratings and wire gauges for both International (deemed Series I) and North American (deemed Series II) applications. Series I preferred current ratings (in amps) are: 16, 32, 63, 125, 250, 400, 630 and 800, with wire gauges specified as mm 2 .

  4. Ampacity - Wikipedia

    en.wikipedia.org/wiki/Ampacity

    A lower rating will apply if multiple conductors are in proximity, since each contributes heat to the others and diminishes the amount of external cooling of the conductors. Depending on the type of insulating material, common maximum allowable temperatures at the surface of the conductor are 60, 75, and 90 °C, often with an ambient air ...

  5. American wire gauge - Wikipedia

    en.wikipedia.org/wiki/American_wire_gauge

    (E.g. two 14 AWG wires have about the same cross-sectional area as a single 11 AWG wire.) This doubles the conductance. When the diameter of a solid round wire is doubled, the AWG will decrease by 6. (E.g. 1 mm diameter wire is ≈18 AWG, 2 mm diameter wire is ≈12 AWG, and 4 mm diameter wire is ≈6 AWG.)

  6. ISO standards for trailer connectors - Wikipedia

    en.wikipedia.org/wiki/ISO_standards_for_trailer...

    10 15 +12V via ignition lock: Grey: 2.5: 13: 11 31: ... The difference is that SAE J560 uses 12V (larger wire cross-section and higher amp rating on fuses). Pin 7 may ...

  7. Dynamic line rating for electric utilities - Wikipedia

    en.wikipedia.org/wiki/Dynamic_line_rating_for...

    Computational fluid dynamics models can be used to provide a larger effective area to a single weather station by mapping wind patterns around the terrain. [11] Direct methods are strongly recommended by CIGRÉ standards 207 [12] and TB 209 TB 498. [13] Several kinds of ratings are available, depending on input parameters and algorithms.

  8. JST connector - Wikipedia

    en.wikipedia.org/wiki/JST_connector

    To minimize confusion, it is best to describe a connector using: the manufacturer's name, exact connector series, and optionally the pitch, such as "JST-XH" or "JST-XH-2.50mm" or "2.50mm JST XH-series" or other variations. The official J.S.T. Co. website allows users to check certain models for their authenticity and specifications. [26]

  9. Anderson Powerpole - Wikipedia

    en.wikipedia.org/wiki/Anderson_Powerpole

    This is an accepted version of this page This is the latest accepted revision, reviewed on 14 February 2025. Family of electrical connectors Anderson Powerpole Anderson Powerpole 15/30/45 ampere housings and contacts (front view) Type Electrical connector The Anderson Powerpole is a family of electrical connectors by Anderson Power Products (APP), although plug compatible connectors are now ...

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