Relay Manufacturers

Americor Electronics, Ltd., based in Elk Grove Village, IL, specializes in manufacturing and supplying power relays. They also produce solenoids, axial fans, terminal blocks, connector systems, and custom cable assemblies. The ISO-9001-2015 certified and RoHS compliant company provides dependable and cost-efficient electronic components for various applications.

Based in Newell, WV, ATC Diversified Electronics manufactures general purpose relays. Their durable series of relays is specifically engineered for tough, repetitive-use applications. The company, part of the Marsh Bellofram Group, provides robust electronic components for industrial needs.

Based in Hoffman Estates, IL, Omron Automation directly manufactures dependable electromechanical relays. Their industrial automation components are designed for reliability, ease of testing, and compatibility with momentary voltage drops. Omron sets high standards for industrial B2B applications, serving various sectors.

American Zettler, Inc. directly manufactures a comprehensive range of relays, including power, industrial, electric vehicle charging, latching, and appliance relays, as well as contactors. They provide high-quality relay solutions for diverse applications. The company also offers displays, controls, and magnetics as additional product lines.

Basler Electric, now part of Littelfuse, Inc., is a global leader in energy technology, specializing in high-quality power system solutions. Based in Highland, IL, the company provides protective relay systems, excitation systems, voltage regulators, and genset controls. They offer tailored solutions for diverse sectors, solving complex energy challenges for over eight decades.

Based in Setauket, NY, BC Systems, Inc. designs and manufactures custom military and aerospace power supplies and power control products. The company utilizes solid-state technology to produce quality power supplies and relay units for various military platforms, including ground, air, and shipboard applications.

Benshaw Inc. manufactures bimetallic-style overload relays, essential for protecting circuits and motors against overloads, phase failure, and stalling. They also provide a comprehensive line of low and medium voltage solid-state and electro-mechanical motor control technologies. The company offers rugged motor control solutions for heavy-duty industrial applications.

Bracke Manufacturing, LLC, based in Newport Beach, CA, specializes in producing manual, transfer, and relay RF switches. They offer a comprehensive range with various connector types like SMA, N-Type, and 3.5mm. The company also manufactures other RF components, including adapters, attenuators, balanced mixers, and circulators.

Based in Burlingame, CA, CIMI specializes in manufacturing customized relays designed and built to client specifications. The company offers expertise in precision die-casting and speciality magnets. CIMI focuses on creating precisely engineered relay solutions for various industrial needs.

Based in Rogers, MN, CIT Relay & Switch manufactures a broad range of relays and switches. Their product portfolio includes automotive, telecom, security, and industrial applications, offering both thru-hole and surface mount options, alongside solid state relays and other components.

Based in Smithfield, RI, Comus International manufactures a wide range of relays, including reed relays, for industrial and commercial applications. The company also produces a diverse portfolio of sensors, such as tilt switches, proximity sensors, and liquid level sensors, serving various market needs.

CR Magnetics, Inc. provides a comprehensive line of sensors, transducers, and components, specializing in AC and DC relays with ranges from 0.01A to 100A. The company offers custom-designed products and expert engineering assistance for various applications.

Based in Prospect, IL, E-T-A Engineering Technology manufactures high voltage relays, including the HVR10, designed for electrified powertrains in buses, trucks, construction machinery, and specialty vehicles. The company provides solutions for overcurrent protection and power distribution products, serving industrial and commercial applications with robust engineering.

Based in Buffalo Grove, IL, Carlo Gavazzi manufactures solid state relays for PCB, DIN rail, and panel mount applications. The company also provides solid state timers, smart laser sensors, and energy management systems, supporting industrial automation and industries transitioning to low-GWP refrigerants.

Greenstone USA manufactures vacuum relays for applications such as RF switching, antenna tuners, and electric vehicles. The company also produces vacuum capacitors, tubes, contactors, and interrupters. With an ISO 9001 certified factory, it offers both standard and custom vacuum products to OEMs.

Based in Lake Forest, CA, Hongfa America, Inc. is a direct manufacturer of various relay products. They specialize in a wide range of relays, including automotive relays, serving diverse industrial and commercial applications. The company provides comprehensive solutions for customers requiring high-quality and reliable relay components.

Based in Rohnert Park, CA, KG Technologies, Inc. specializes in manufacturing high-quality latching relays and current sensors. The company provides switching solutions for energy management, developing products to support the growth of the smart meter market. They offer customized solutions and have extensive manufacturing capabilities.

Leach International Corporation manufactures a wide range of military-qualified miniature, subminiature, and half-crystal can relays, contactors, control devices, and solid state controllers. Their products support dry-circuit switching from low level to high current (up to 700A DC and 385A AC) for power distribution applications.

Based in Waukesha, WI, Macromatic Industrial Controls specializes in manufacturing industrial relays. Their product range includes time delay relays, three-phase monitor relays for motor protection, and liquid level control relays for conductive liquids. These compact, DIN-rail mounted solutions are ideal for OEM panels and industrial applications.

Based in Two Rivers, WI, Manitowoc Relay & Protectors, Inc. manufactures electrical relays for the North American market. They specialize in RVA potential relays for compressor motors and pumps in air conditioning, refrigeration systems, and other hard start applications.

NK Technologies designs and assembles a range of current sensing switches, voltage transducers, and ground fault relays in the USA. Their product line includes AC and DC current transducers, power transducers, and signal converters for various electrical protection and monitoring applications. They provide solutions designed to meet NEC requirements.

Based in Temecula, CA, Opto 22 designs and manufactures solid-state relays (SSRs) and real-time I/O sensing and control products. Founded in 1974, the company offers reliable, open standards-based hardware and software for industrial automation, process control, and IIoT applications, all designed and made in the U.S.A.

Based in Kenosha, WI, Patco Industries Inc. provides various styles of railroad relays, tools, and equipment essential for railway operations. The company offers new products, including indication contact posts, alongside specialized repair and return services for relays and switch machines, ensuring efficient railway functionality.

Based in Middletown, PA, Phoenix Contact manufactures a range of industrial electrical engineering and automation solutions. The company produces monitoring relays for various system parameters, alongside other control and interface components. They serve industrial and commercial markets.

Struthers-Dunn, Inc. is a US-based manufacturer specializing in a broad range of relays. Their product line includes general purpose, traffic cabinet, power, motor, latching/sequencing, special purpose, hermetically sealed, sensitive, timer/sensor, and reed relays. The company serves diverse industrial and commercial applications.

Based in Carpinteria, CA, Rincon Power, LLC manufactures high-performance, high voltage contactors, relays, and switches. These hermetically sealed products are engineered for harsh environments and demanding applications in an electrified future. The company handles product design, testing, and manufacturing in its state-of-the-art facility.

Based in Campbell, CA, Ross Engineering Corporation designs, manufactures, and tests high voltage electronic and electro-mechanical devices, including relays, probes, and switches. The company serves power electronic, power utility, laboratory, and test industries worldwide with its precision, quality-engineered products.

Texas Instruments designs and manufactures a broad portfolio of semiconductor products, including solid-state relays. They offer integrated circuits that combine power and signal transfer over an isolation barrier in a single chip. The company focuses on making electronics more affordable, efficient, and reliable through advances in integrated circuit technology.

Utility Relay Company manufactures microcontroller-based, true-RMS solid-state trip units for AC and DC power circuit breakers, along with trip unit retrofit conversion kits. They offer solutions like Smart 1-Line™ for monitoring AC-PRO® and AC-PRO-II® networks, aiming to enhance breaker control and data analysis.

Based in Richmond, VA, Weidmuller manufactures industrial connectivity and automation products, including high-quality safety relays. These relays are designed for seamless integration into distributed control systems (DCSs), providing superior features and ensuring safe operating conditions for various industrial applications.

Based in Irvine, CA, Zettler Controls manufactures and supplies a comprehensive portfolio of electromechanical relays. The company also produces contactors, temperature controls, and motors & drives for diverse industrial and commercial applications.

Based in Vista, CA, ZETTLER New Energy Solutions manufactures high-quality electromechanical components, including relays. These robust components are engineered for critical applications in renewable energy, such as solar inverters, and electric vehicle charging devices.

Aleph America specializes in manufacturing a diverse range of reed relays, including high power, high voltage, and RF series. The company serves various sectors such as electronics, automotive, office automation, and security industries.

Bluewater Enterprises manufactures heavy-duty, marine-grade relays designed for high-current 12V systems. They specialize in sealed and rugged electronic components, providing reliable solutions for marine power needs. The company also offers quality switches, cables, and other electrical components at accessible prices.

Based in San Francisco, Leach International designs and manufactures electrical and aircraft relays. The company provides hermetically sealed relays and control devices, leveraging expertise for power distribution and control equipment. They serve the aerospace and rail industries with solutions-oriented products and maintenance services.

US Relays & Technology, Inc. specializes in the development and manufacturing of special reed relays. The company provides custom-built relay solutions, catering to designers who require components tailored for their particular application needs.

Based in Carlsbad, CA, IDEC Corporation is an established industrial manufacturer specializing in relays, offering a wide selection for many decades. The company also produces advanced safety wheel drives for AGV/AMR systems, photoelectric sensors, and safety controllers, providing comprehensive industrial automation solutions.

Based in Edison, NJ, Fuji Electric Corp. of America manufactures power electronics and electronic equipment, including thermal overload relays and mini contactors. They offer a range of quality products within their Distribution & Control lines, providing world-class engineering and application expertise for industrial customers.

Based in Minneapolis, MN, Banner Engineering manufactures industrial automation products, specializing in machine safety solutions. The company provides safety relays and safety controllers engineered to monitor primary safety devices, protecting personnel from accidents. Their comprehensive product line also includes sensors, wireless solutions, and connectivity technology for various industrial applications.

Based in Bloomingdale, IL, Core Components, Inc. manufactures HVAC and automation components, including multi-voltage relay modules, control transformers, and power supplies. Specializing in electromechanical relays, the company has served industrial and commercial clients since 1974. Their products are ideal for Building Automation and HVAC Controls applications.

Crown Technical Systems designs and manufactures reliable power distribution products, including protective relay panels, switchgear, and control enclosures. They serve utilities, data centers, renewables, industrial, and transport industries, aiming to make the power grid safe, smart, and dependable.

Elcon Precision LLC manufactures precision components and assemblies, specializing in brazed ceramic-to-metal and metal-to-metal assemblies. They produce coaxial switches for high-speed switching radar systems, serving aerospace, medical, and defense industries with critical manufacturing solutions.

Kelco Industries manufactures Made-in-USA electromechanical relays, engineered for aerospace, defense, and industrial power systems. They specialize in high-amperage and hermetically sealed designs. With in-house engineering and rapid prototyping, Kelco provides scalable production. The company holds AS9100/ISO and ITAR certifications.

Maven Performance Products specializes in manufacturing high-performance automotive components, including robust high-current relays. Their relays are designed to handle over 100 amps at 24V, accommodating up to 4-gauge cable for demanding applications. The company also produces turbo mounts, ignition coil brackets, and throttle cable brackets for the automotive industry.

Based in Rancho Santa Margarita, CA, Menlo Microsystems designs and manufactures high-performance micro-mechanical relays (MEMS switches). Their innovative technology combines the strengths of traditional relays with transistor merits, producing smaller, faster, and more efficient switching solutions for various demanding applications.

Based in Conshohocken, PA, Relay & Power Systems (RPS) is an ISO manufacturing and engineering firm. They specialize in custom-built relay panels and high-speed auxiliary relays for medium and high voltage electrical power systems. RPS provides turnkey protection and control solutions for utilities, industrials, and oil & gas clients in the US.

Rockwell Automation manufactures industrial relays and timers, designing and testing them to meet demanding worldwide standards. This global company offers high-quality relays as part of its comprehensive automation solutions, serving diverse industrial applications for customers in the United States and internationally.

Based in Cupertino, CA, Sequent Microsystems designs and manufactures stackable HATs for Raspberry Pi, featuring integrated relays for diverse automation needs. Their products include multi-channel relay boards with various voltage and current ratings, alongside digital and analog inputs/outputs for industrial, home, and building automation.

Based in Pompano Beach, FL, Song Chuan Precision Americas manufactures power electromechanical and electronic relays. An IATF-16949 certified company with over 50 years of experience, they provide solutions for industrial, automotive, power supply, and solar applications, offering custom R&D.

Based in Fairfield, OH, Standex Detect designs and manufactures custom relays, including reed, Photo-MOSFET, and optocoupler solutions. Their precision-engineered relays ensure reliability for System-on-Chip (SoC) test systems, data centers, automated test equipment (ATE), and harsh agricultural environments.

Based in Aurora, IL, AMETEK NCC manufactures advanced, reliable electronic controls and timers. They specialize in industrial products, including time-delay relays, temperature monitors, and voltage monitors. Their durable, cost-effective solutions are designed for various industrial applications and food service equipment.

Teledyne Defense Electronics, through its Teledyne Relays division, provides high-reliability relays tailored for demanding aerospace and defense applications. They leverage advanced technology to ensure mission-critical performance in extreme conditions, supplying rugged components for various defense and aerospace systems.

Teledyne Relays, a division of Teledyne Aerospace & Defense Electronics, manufactures high-performance relays. These robust components are engineered for demanding applications in aerospace, defense, oil & gas exploration, and industrial control. They leverage advanced technology to ensure survival in rugged conditions.

American Relays, Inc. specializes in the manufacturing of Reed Relays, offering a comprehensive array of these devices. The company focuses on Reed Relay Technology, providing solutions for various applications that require magnetic and transformer components.

Based in East Greenwich, RI, Coto Technology manufactures advanced switching and magnetic sensing solutions. They produce CotoClassic™ reed relays, BGA relays, and solid-state MOSFET relays. Coto also offers magnetic sensors and serves industries like battery management, automation, and medical sectors.

Based in Southfield, MI, DENSO Auto Parts manufactures high-quality automotive relays. Engineered to meet stringent automaker standards, their relays offer excellent shock resistance, arcing protection, and thermal management. DENSO provides reliable and durable components, serving the automotive industry with parts designed for optimal performance across various vehicle systems.

Functional Devices, Inc. designs and manufactures American-made devices for the HVAC, Building Controls, and Energy Management industries. The company specializes in producing a comprehensive range of products, including a strong focus on relays, current sensors, and power supplies, serving commercial and industrial applications across the United States.

Dow-Key Microwave, founded in 1945, is an RF switch manufacturer based in the United States. The company applies its extensive decades of experience to deliver radio frequency switching solutions for various applications, establishing itself as a long-standing provider in the industry.

Panasonic Industrial Devices manufactures a broad portfolio of electronic components, specializing in relays and contactors for industrial applications. They offer mechanical relays ideal for signal control with nominal switching capacities below 2A. With over 150,000 part numbers, they provide components for various sectors, including transportation and agriculture.

Based in Tempe, AZ, Radiall specializes in the design and manufacturing of high-performance RF and microwave switches. The company offers a comprehensive range of interconnect solutions, including these specialized switches, serving military & aerospace, industrial, and instrumentation markets globally.

Based in Boston, MA, Schneider Electric is a global specialist in energy management and automation. They manufacture a diverse range of industrial automation and control products, including various relays. Their offerings, such as the SE Relays 841 series current sensor, provide precise current sensing for industrial and commercial applications.

Sensata Technologies, through its Crydom brand, manufactures solid state relays and contactors. They offer a broad range of these electrical components in various mounting styles, covering a wide spectrum of voltage and current requirements. These products serve diverse industrial and commercial applications.

Solid State Optronics (SSO) specializes in the design and manufacture of miniature Solid State Relays (SSRs) and other optically isolated semiconductor devices. As an industry pioneer, SSO provides advanced solid-state relay technology and optoelectronic components, offering innovative solutions for diverse industrial applications.