Littelfuse Circuit Protection
Manufacturing and designing circuit protection including fuses, PTC and circuit breakers for automotive, electrical and electronic applications.
http://www.littelfuse.com/

Ningbo Switchgear Electric Co.,Ltd
Manufacture of low voltage fuses, switch-fuse combination, thermal over-load relays and a complete set of switch equipment.
http://www.nk-only.com/

Schurter, Inc.
Manufacturer of circuit protection devices including fuses, holders, circuit breakers for equipment, connectors, power entry modules, cordsets and switches.
http://www.schurterinc.com/

Bill Switchgear
Manufactures circuit breakers, circuit protection and control.
http://www.bill-switchgear.com/

Horstmann Gmbh
Manufacture of faulted circuit indicators, earth fault indicators, voltage detectors and phase comparators.
http://www.horstmanngmbh.com/

Dianxing Electrical Appliance Industry Co., Ltd.
AC voltage regulator manufacturer and exporter in China that supplies AC voltage regulators.
http://www.dianxing-kebo.com/

Orion Italia
Manufacturer of electrical measure and protection relays.
http://www.orionitalia.com

Portex.
Manufacturers and exporters of thermal and current controls of electrical equipment.
http://www.portexindia.com

MEM Low Voltage Products
Manufacturers of circuit breakers, switchgear, fusegear, low voltage switchboards, capacitors, TVSS and motor control gear.
http://www.memonline.com

EFEN Engineers
Manufacturer of electrical, power and industrial fuses.
http://www.efen.com

Loresco International
Manufacturer of carbon backfill and related products for the cathodic protection and electrical grounding industries.
http://www.loresco.com/

Electromotor Protection Co.,Ltd
Manufacturing electric protection unit control, for circuit, transformer and electromotor protection, electric transducer and bus monitor control.
http://www.mingyang.com.cn/

Lexor Electronic Laboratories Ltd.
Delay line and filter network manufacturers.
http://www.lexor.demon.co.uk/

Hepol Electric Enterprise
Manufacturer of circuit breakers, concators, fuses, relays, distribution boards and sockets plugs. from China.
http://www.c45n.com/

Precision Controls Company
Manufacturer of circuit breakers, motor protectors and thermal discs.
http://www.precision-controls.com

Miami Breaker, Inc.
Manufactures replacement circuit breakers and automatic and manual transfer switches and is a distributor of motor controls, remanufactured breakers, GFI receptacles and electronic ballasts. From Florida, USA.
http://www.miamibreaker.com/

Luhfser
Expulsion fuse links protect high voltage transformers against fault currents, reduce loss during energy transmission. From Colombia.
http://www.luhfser.com/english/Index.html

Airpax
Thermal protection, electronic packaging and power protection products.
http://www.airpaxcorp.com/

Bender Inc.
Industrial protection for measuring voltage, current, phase loss, phase reversal, frequency and other conditions in AC and DC systems up to 690V.
http://www.benderrelay.com

Fuse Holders Corp
Manufacturer of various fuse holders and clips.
http://www.fuseholders.com

Hi-Tech Fuses, Inc.
Manufacturer of high-voltage current-limiting fuses, including backup and full-range types, for protecting electrical distribution equipment.
http://www.hi-techfuses.com/

Jaker Electric Co., Ltd.
Manufacturer of load break switch, power fuse mounting base. From Taiwan.
http://www.jaker.com.tw/

Wickmann
Manufacturer of miniature, subminiature, surface mount (SMT) and automotive fuses, protectors and circuit protection components.
http://www.wickmannusa.com/

Sleek Co., LTD
Manufacturer of fuses, micro fuses and resetable fuses.
http://www.microfuse.com/

Advanced Protection Technologies
Manufactures surge suppressors for the home and industry.
http://www.apttvss.com/

Safe Line S.L.
Manufactures protection devices for overvoltage, low voltage, surge arrester and lightning. From Spain.
http://www.safeline.es/

Stanley Switch Gear Products
Manufacturing switchgears for industrial, heavy industries and for agricultural pumps.
http://www.stanleyswitch.com/

Sri Venkateswara Precision Components
Manufacturer of the final pole assemblies, cluster assemblies, isolating contacts and mechanism assemblies of breakers.
http://www.svpcindia.com

Cutler-Hammer, Inc
Manufacturer of circuit breakers, conductors, interrupters, surge protectors and breaker boxes.
http://www.fireguard.info

Rowe Hankins Components Ltd
Distributor of circuit protection devices, switches,hydraulic,magnetic circuit breakers, switchgear, traction components and measuring systems.
http://www.rowehankins.com/

Arc Fault detection
Information site about Arcfault detection systems, the site providing information on the causes and prevention thereof.
http://www.arcfault.org/

Sankosha USA
Manufacturer of gas tube surge arresters and gas discharge tubes for over voltage surge protection from lightning and other transient voltages.
http://www.sankosha-usa.com

Yueh Jyh Metal Industrial Co., Ltd.
Manufacturer based in Taiwan of fuses, circuit breakers, fuse holders and fuse blocks.
http://www.yuehjyh.com

Vimar Spa
Manufacturer from Italy of Circuit Breakers, RCBOs,interlocked socket-outlets, fuses, fuse holders and transient voltage suppressors.
http://www.vimar.it

Gamma Fuses
Distributor based in Florida USA, Gamma is a specialist fuse supplier of industrial fuses, and accessories.
http://gammafuses.com

Wujin Zhenhui Electronic Co.,Ltd.
Manufacturer based in China supplying fuses, fuse holders, automotive fuses and thermal fuses.
http://www.chinafuse.com

Poco Sales Inc.
US distributor of circuit breakers by Airpax, CBI, Eaton, ETA, Carlingswitch, Heinemann, Schurter. Featuring circuit breaker specifications, engineering drawings and design guides.
http://www.pocosales.com/

LG Industrial Systems
Korean manufacturer of circuit breakers.
http://www.lgis.com

Controlab Inc.
Canadian manufacturer of phase failure and ground fault monitors.
http://phaselossprotection.com

Safety Design, Inc.
US supplier of a lockout system that can be retrofitted to any electrical panel or circuit breaker.
http://www.powerbloc.com

Rebeck Enterprise Co., Ltd.
Manufacturer of motor, circuit breaker, contactor, transformer, electrical/ HVAC components, relay, motor starter.
http://www.contactor.com.tw/

Kusum Engineering Works
Manufacturer based in India, of circuit breakers, switchgear, fusegear, and motor control gear.
http://www.kewelectricals.com

Ningbo Final Best Co., LTD
China manufacturer and distributor of fuses, fuse holders,switches and rocker switches
http://www.ec21.net/finalbest

National Fuse Products
US supplier of domestic and foreign fuses, blocks, switches, and OEM/MRO accessories.
http://www.fuses.cc

Tyco Electronics: Raychem Division
Manufacturer of overcurrent resettable devices, thyristor surge protectors, protected power switches and magnetics products.
http://www.circuitprotection.com/

Mechanical Products Co.
Manufacturer of circuit breakers.
http://www.mechprod.com/

Reuter Hanney, Inc.
Provider of electrical testing, power quality studies, system design and coordination services to commercial, industrial and institutional facilities throughout the mid-Atlantic region.
http://www.reuterhanney.com/

Shenzhen Ampron Sensitive Components Co., Ltd.
Manufacturer of PTC thermistor. From China.
http://www.ampron.com

Ferraz Shawmut, Inc.
Develops and manufactures fuses, blocks and switches. Product specifications, news, and details of employment opportunities.
http://www.ferrazshawmut.com/

Inter-Cel
Manufacturer of thermal circuit breakers, thermal switches, bimetal thermostats, high temperature regulators, thermal protectors.
http://www.inter-cel.pl

Hinode Electric co., Ltd.
Manufacturer of semiconductor fuses.
http://www.hinodedenki.co.jp

EL-CO
Manufacturer of ceramic fuses, holders, household ceramic based sockets, plugs and connectors.
http://www.el-co.ro

Jensen Devices AB
Manufacturer of gas discharge tubes.
http://www.jensendevices.com/

Fusetek
Canadian fuse manufacturer.
http://www.gofusetek.com

Merlin Gerin
The electrical distribution information website for Merlin Gerin brand of Schneider Electric.
http://www.merlingerin.com

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.
http://www.arcadvisor.com

Electrical Designer's Reference
Fault current calculator, motor circuit design and protection.
http://www.edreference.com

FuseOne
Sells fuses for electric circuit protection from overstock and surplus supplies.
http://www.fuseone.com/

MD Semiconductor, Inc.
High current surge, transient voltage suppression device manufacturer.
http://www.mdesemiconductor.com/

Airpax Power Protection Products
Designs and manufactures magnetic circuit breakers and related products for telecommunications, industrial, power conditioning, HVAC, and information processing applications.
http://www.airpax.net/

BONEGA Velkoobchod spol. s.r.o.
Development, production and distribution of electrical installation devices, miniature circuit breakers, residual current devices, and switches.
http://www.bonega.cz/

Cirlock
Makes circuit breakers and fuse holders for safety lockout systems.
http://www.cirlock.com.au/

Circuit Breaker Industries Ltd - CBI
Manufacturer of miniature and moulded case circuit breakers for overload and short circuit protection. From South Africa.
http://www.atc.co.za/