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In electronics and electrical engineering, a fuse is an electrical safety device that operates to provide overcurrent protection of an electrical circuit. Its essential component is a metal wire or strip that melts when too much current flows through it, thereby stopping or interrupting the current.
Automotive fuses are typically housed inside one or more fuse boxes (also called an integrated power module (IPM)) within the vehicle, typically on one side of the engine compartment and/or under the dash near the steering wheel. Some fuses or circuit breakers may nonetheless be placed elsewhere, such as near the cabin fan or air bag controller.
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.
In electric power systems and industrial automation, ANSI Device Numbers can be used to identify equipment and devices in a system such as relays, circuit breakers, or instruments. The device numbers are enumerated in ANSI / IEEE Standard C37.2 Standard for Electrical Power System Device Function Numbers, Acronyms, and Contact Designations .
In electrical engineering, IEC 60269 is a set of technical standards for low-voltage power fuses. [1] The standard is in four volumes, which describe general requirements, fuses for industrial and commercial applications, fuses for residential applications, and fuses to protect semiconductor devices.
Fuses of these ratings should be interchangeable and be readily identified." [ 53 ] The original BS 1363:1947 specified fuse ratings of 3 A, 7 A and 13 A. [ 54 ] The current version of the fuse standard, BS 1362:1973, allows any fuse rating up to 13 A, with 3 A (coloured red) and 13 A (coloured brown) as the preferred (but not mandated) values ...
Fuse – over-current protection, one time use; Circuit breaker – resettable fuse in the form of a mechanical switch; Resettable fuse or PolySwitch – circuit breaker action using solid state device; Ground-fault protection or residual-current device – circuit breaker sensitive to mains currents passing to ground
Recolored the ATO fuse yet again (was to similar to maxi fuse), made strokes of maxi fuse thinner: 04:30, 1 September 2013: 870 × 520 (83 KB) Havarhen: Fixed some more font problems: 04:26, 1 September 2013: 870 × 520 (83 KB) Havarhen: Fixed some font problems, changed some text alignment: 03:51, 1 September 2013: 870 × 520 (83 KB) Havarhen