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- Littelfuse Circuit Protection - Manufacturing and designing circuit protection including fuses, PTC and circuit breakers for automotive, electrical and electronic applications.
- Arc flash calculator, short circuit analysis. - Power distribution system balanced symmetrical and unbalanced short circuit analysis needed for arc flash protection boundary, incident energy calculation, selection of electrical equipment, circuit protection devices. Bolted 3-phase, line to earth, double phase to ground, phase to phase, single phase open faults through zero and above zero impedance can be resolved.
- Circuit Breaker Industries Ltd - CBI - Manufacturer of miniature and moulded case circuit breakers for overload and short circuit protection. From South Africa.
- Electromotor Protection Co.,Ltd - Manufacturing electric protection unit control, for circuit, transformer and electromotor protection, electric transducer and bus monitor control.
- Schurter, Inc. - Manufacturer of circuit protection devices including fuses, holders, circuit breakers for equipment, connectors, power entry modules, cordsets and switches.
- Bill Switchgear - Manufactures circuit breakers, circuit protection and control.
- Rowe Hankins Components Ltd - Distributor of circuit protection devices, switches,hydraulic,magnetic circuit breakers, switchgear, traction components and measuring systems.
- Electrical Designer's Reference - Fault current calculator, motor circuit design and protection.
- Wickmann - Manufacturer of miniature, subminiature, surface mount (SMT) and automotive fuses, protectors and circuit protection components.
- Airpax Power Protection Products - Designs and manufactures magnetic circuit breakers and related products for telecommunications, industrial, power conditioning, HVAC, and information processing applications.
Wikipedia Articles
- Conditional short circuit current - Conditional short-circuit current is the value of the alternating current (a.c) component of a prospective current, which a switch without intergral short-circuit protection, but protected by a suitable short circuit protective device (SCPD) in series, can withstand under specified conditions of use and behaviour integral of the square of the current over a given time interval (t0,t1)
- Integrated Circuit Topography Act - The Integrated Circuit Topography Act ("An Act to provide for the protection of integrated circuit topographies and to amend certain Acts in consequence thereof", C-37) is legislation passed by the Parliament of Canada in 1990 that regulates the intellectual property of integrated circuit topographies. It came into force in 1993.
- Protection From Abuse - A Protection From Abuse (commonly abbreviated as PFA) is an injunction to protect a person or persons in or just out of an abusive relationship with a romantic partner or family member, similar to a restraining order. Enforcement varies from state to state, but it is most often a circuit court order that allows intervention by police before abuse occurs.
- Supervisory circuit - Supervisory circuits are semiconductor devices that detect and monitor voltage levels in power supplies, microprocessors, and other systems. They are protection circuits that monitor one or more system parameters.
- Extra-low voltage - The use of extra-low voltage (ELV) in an electrical circuit is one of several means to provide protection against electrical shock. The International Electrotechnical Commission and its member organizations define an ELV circuit as one in which the electrical potential of any conductor against earth (ground) is not more than either 50 volts RMS (70 volts peak) for alternating current, or 120 volts for direct ...