| Horstmann_Gmbh Manufacture of faulted circuit indicators, earth fault indicators, voltage detectors and phase comparators. |
| Inter-Cel Manufacturer of thermal circuit breakers, thermal switches, bimetal thermostats, high temperature regulators, thermal protectors. |
| Jaker_Electric_Co_,_Ltd_ Manufacturer of load break switch, power fuse mounting base. From Taiwan. |
| Jensen_Devices_AB Manufacturer of gas discharge tubes. |
| Kusum_Engineering_Works Manufacturer based in India, of circuit breakers, switchgear, fusegear, and motor control gear. |
| Lexor_Electronic_Laboratories_Ltd_ Delay line and filter network manufacturers. |
| LG_Industrial_Systems Korean manufacturer of circuit breakers. |
| Littelfuse_Circuit_Protection Manufacturing and designing circuit protection including fuses, PTC and circuit breakers for automotive, electrical and electronic applications. |
| Loresco_International Manufacturer of carbon backfill and related products for the cathodic protection and electrical grounding industries. |
| Luhfser Expulsion fuse links protect high voltage transformers against fault currents, reduce loss during energy transmission. From Colombia. |
| MD_Semiconductor,_Inc_ High current surge, transient voltage suppression device manufacturer. |
| Mechanical_Products_Co_ Manufacturer of circuit breakers. |
| MEM_Low_Voltage_Products Manufacturers of circuit breakers, switchgear, fusegear, low voltage switchboards, capacitors, TVSS and motor control gear. |
| Merlin_Gerin The electrical distribution information website for Merlin Gerin brand of Schneider Electric. |
| 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 Flo |
| National_Fuse_Products US supplier of domestic and foreign fuses, blocks, switches, and OEM/MRO accessories. |
| Ningbo_Final_Best_Co_,_LTD China manufacturer and distributor of fuses, fuse holders,switches and rocker switches |
| Ningbo_Switchgear_Electric_Co_,Ltd Manufacture of low voltage fuses, switch-fuse combination, thermal over-load relays and a complete set of switch equipment. |
| Orion_Italia Manufacturer of electrical measure and protection relays. |
| Portex_ Manufacturers and exporters of thermal and current controls of electrical equipment. |
| Precision_Controls_Company Manufacturer of circuit breakers, motor protectors and thermal discs. |
| Rebeck_Enterprise_Co_,_Ltd_ Manufacturer of motor, circuit breaker, contactor, transformer, electrical/ HVAC components, relay, motor starter. |
| 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. |
| Rowe_Hankins_Components_Ltd Distributor of circuit protection devices, switches,hydraulic,magnetic circuit breakers, switchgear, traction components and measuring systems. |
| Safe_Line_S_L_ Manufactures protection devices for overvoltage, low voltage, surge arrester and lightning. From Spain. |
| Safety_Design,_Inc_ US supplier of a lockout system that can be retrofitted to any electrical panel or circuit breaker. |
| Sankosha_USA Manufacturer of gas tube surge arresters and gas discharge tubes for over voltage surge protection from lightning and other transient voltages. |
| Schurter,_Inc_ Manufacturer of circuit protection devices including fuses, holders, circuit breakers for equipment, connectors, power entry modules, cordsets and switches. |
| Shenzhen_Ampron_Sensitive_Components_Co_,_Ltd_ Manufacturer of PTC thermistor. From China. |
| Sleek_Co_,_LTD Manufacturer of fuses, micro fuses and resetable fuses. |
| Sri_Venkateswara_Precision_Components Manufacturer of the final pole assemblies, cluster assemblies, isolating contacts and mechanism assemblies of breakers. |
| Stanley_Switch_Gear_Products Manufacturing switchgears for industrial, heavy industries and for agricultural pumps. |
| Taiwan_Switch_Co_,_Ltd_ Switch manufacturer; producing molded case circuit breakers, earth leakage circuit breakers, magnetic starters, fuses, control switches and sensitive devices. |
| Tyco_Electronics__Raychem_Division Manufacturer of overcurrent resettable devices, thyristor surge protectors, protected power switches and magnetics products. |
| Vimar_Spa Manufacturer from Italy of Circuit Breakers, RCBOs,interlocked socket-outlets, fuses, fuse holders and transient voltage suppressors. |
| Wickmann Manufacturer of miniature, subminiature, surface mount (SMT) and automotive fuses, protectors and circuit protection components. |
| Wujin_Zhenhui_Electronic_Co_,Ltd_ Manufacturer based in China supplying fuses, fuse holders, automotive fuses and thermal fuses. |
| Yueh_Jyh_Metal_Industrial_Co_,_Ltd_ Manufacturer based in Taiwan of fuses, circuit breakers, fuse holders and fuse blocks. |
| American_National_Standards_Institute Offers up-to-date resources on national and international standards activities. |
| CEBEC Brussels, Belgium based service company providing electrotechnical certification for ENEC and CEBEC low-voltage product certification within the European Union (EU). Site lists applicable EU laws. |