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  2. Breaking capacity - Wikipedia

    en.wikipedia.org/wiki/Breaking_capacity

    Types used in commercial and industrial low-voltage distribution systems are rated to safely interrupt 200,000 amperes. The rating of power circuit breakers varies according to the application voltage; a circuit breaker that interrupts 50,000 amperes at 208 volts might be rated to interrupt only 10,000 amperes at 600 volts, for example.

  3. Heckler & Koch UMP - Wikipedia

    en.wikipedia.org/wiki/Heckler_&_Koch_UMP

    The UMP was designed in the 1990s by Heckler & Koch (HK), as a cheaper, lighter alternative to the MP5, [5] which made heavy use of polymers. [6] The UMP first entered production in 2000. [ 2 ] It was designed primarily for use by American military and law enforcement units, [ 7 ] as the MP5 was not available in .45 ACP, a round which was ...

  4. Utilization categories - Wikipedia

    en.wikipedia.org/wiki/Utilization_categories

    The utilization categories category for low-voltage switchgear defines the characteristic operating conditions for switchgear such as contactors, circuit-breakers, circuit-breaker-fuse units, contactor relays, etc. These devices are dimensioned for different electrical loads and for different operating conditions.

  5. List of Heckler & Koch products - Wikipedia

    en.wikipedia.org/wiki/List_of_Heckler_&_Koch...

    HK 36 (4.6×36 mm Prototype) Heckler & Koch G11/Heckler & Koch ACR; WSG2000; Heckler & Koch was also a contractor for the XM29 and XM8 projects (both on hold as of 2005), as well as the related XM25. Heckler & Koch HK123 (5.62)

  6. Split-phase electric power - Wikipedia

    en.wikipedia.org/wiki/Split-phase_electric_power

    Single-pole circuit breakers feed 120 V circuits from one of the 120 V buses within the panel, or two-pole circuit breakers feed 240-volt circuits from both buses. 120 V circuits are the most common, and used to power NEMA 1 and NEMA 5 outlets, and most residential and light commercial direct-wired lighting circuits.

  7. Circuit breaker - Wikipedia

    en.wikipedia.org/wiki/Circuit_breaker

    The disconnecting circuit breaker (DCB) was introduced in 2000 [18] and is a high-voltage circuit breaker modeled after the SF 6-breaker. It presents a technical solution where the disconnecting function is integrated in the breaking chamber, eliminating the need for separate disconnectors.

  8. Electrical wiring in the United Kingdom - Wikipedia

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

    Residual-current device (RCD), also residual current circuit breaker (RCCB) A circuit breaker triggered by unequal currents in line and neutral wires (i.e., electrical power is passing to earth). Mandatory for most circuits as of 17th Edition regulations. Residual current circuit breaker with overcurrent protection (RCBO)

  9. Distribution board - Wikipedia

    en.wikipedia.org/wiki/Distribution_board

    A distribution board (also known as panelboard, circuit breaker panel, breaker panel, electric panel, fuse box or DB box) is a component of an electricity supply system that divides an electrical power feed into subsidiary circuits while providing a protective fuse or circuit breaker for each circuit in a common enclosure.

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