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A reference designator unambiguously identifies the location of a component within an electrical schematic or on a printed circuit board.The reference designator usually consists of one or two letters followed by a number, e.g. C3, D1, R4, U15.
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 ...
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.
The Circuit Breaker is a design pattern commonly used in software development to improve system resilience and fault tolerance. Circuit breaker pattern can prevent cascading failures particularly in distributed systems. [1] In distributed systems, the Circuit Breaker pattern can be used to monitor service health and can detect failures dynamically.
This three-wire single-phase system is common in North America for residential and light commercial applications. Circuit breaker panels typically have two live (hot) wires, and a neutral, connected at one point to the grounded center tap of a local transformer. Usually, one of the live wires is black and the other one red; the neutral wire is ...
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)
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)
Vacuum interrupter with ceramic housing. In electrical engineering, a vacuum interrupter is a switch which uses electrical contacts in a vacuum. It is the core component of medium-voltage circuit-breakers, generator circuit-breakers, and high-voltage circuit-breakers.