DARE Electronics, Inc. - Troy, OH
Manufacturer
Manufacturer of custom & standard mil-spec time delay relays; voltage, phase, & frequency sensors; power monitors; flashers; current sensors; electro-mechanical and solid-state relays.
www.dareelectronics.com/products/frequency-...

Marsh Electronics, Inc. - Locations
Distributor, Service Company
Stocking distributor of frequency, heavy duty, high voltage and transistorized relays. Vendor managed inventory (VMI) and internet replenishment programs available. RoHS complaint. Meets IPC A620 standards. CE and CSA certified. UL listed. JIT and Kan Ban delivery.
Brand Names: Adam, Agastat, American Zettler, Cole Hersee, Crydom, Deltrol, Finder, Littelfuse, Magnecraft,...
catalog.marshelectronics.com/category/all-c...

Altech Corp. - Flemington, NJ
Distributor, Manufacturer
ISO 9001:2000 certified manufacturer & distributor of frequency relays & low voltage relays. Features include high quality voltage range, high breakdown voltage, high creeping distance, compact size, crown contacts, high switching voltage & quality control check for each safety relay. Applications include emergency stop modules, safety door controls, pressure mat controls, speed controls, safety gates, light barriers & emergency stop switches. Relays are UL® listed, CSA® approved, CE listed & RoHS compliant.
www.altechcorp.com/HTML/SafetyRelays-A.html

Schneider Electric - Magnecraft - Des Plaines, IL
Manufacturer
Manufacturer of PCB mount solid state relays for frequency applications. Specifications of relays include 47 Hz to 63 Hz operating frequency range, 8 VAC to 280 VAC output voltage range, 3 VDC to 32 VDC input voltage range, 5 mA to 25 mA input current, 1 VDC release voltage, 5 A rated load current, 25 A to 300 A surge current protection, 8.3 milliseconds turn on/off time, 10 mA leakage current, & minus 40 degrees C to plus 85 degrees C operating temperature. CE & CSA certified, UL listed, & RoHS compliant.
Brand Names: Magnecraft
www.serelays.com/

Bender, Inc. - Coatesville, PA
Manufacturer
ISO 9001 certified manufacturer of frequency relays for monitoring over & under frequency up to 60 Hz frequency. Types of relays include voltage, current sensing, asymmetry, phase sequence or failure, continuity, electronic & alarm relays. Frequency relays are suitable for AC systems, generators & electrical energy supply systems.
www.bender.org/frequency_relays.aspx

Spectrum Industries, Inc. - Peabody, MA
Distributor, Service Company
Distributor of protector relays including frequency and synchro-check or synchronizing relays. Specifications include 0.1% to 0.5% accuracy, 50 Hz to 400 Hz frequency. Custom relays available.
www.spectrumind.com/protectormeters.html#Pr...

Onlinecomponents.com - Santa Monica, CA
Distributor, Manufacturers' Rep
Manufacturer's rep. & distributor of electronic components such as directional, dry circuit, electromechanical, electronic & frequency relays.
Brand Names: Agastat, Allied Controls, Carlo Gavazzi, Clare, Cynergy3, Eaton, Hartman, Honeywell, IDEC, Kilovac,...

Steven Engineering - South San Francisco, CA
Distributor, Custom Manufacturer
Distributor of relays including flasher relays, high frequency relays, high speed relays & high temperature relays. Same day shipping & JIT delivery available.
Brand Names: Baldor, Crouzet, Custom Sensors & Technologies, Cynergy3, Data Instruments, Edwards Signaling,...

Honeywell Sensing and Control - Golden Valley, MN
Manufacturer, Custom Manufacturer
Six Sigma capable & AS 9100, ISO 14001, ISO 9001, TS 16949, & QS 9000 certified manufacturer of emergency stop relays, frequency relays, general purpose relays, high temperature relays, & industrial control & power relays. Applications include power & logic control for factory machines & control panels. Current rating of 3 A, 5 A, & 10 A. Operate times of 25 ms & 20 ms max. Contact material used is silver cadmium oxide, fine silver, & gold plated silver

Siemens One - Alpharetta, GA
Manufacturer, Custom Manufacturer, Service Company
Manufacturer of safety relays for applications such as emergency stop shutdown, protective door monitoring & protection of presses or punching machines. Electronic enable circuits exhibit permanent function monitoring & low-wear operation as well as high switching frequency

Symcom, Inc - Rapid City, SD
Manufacturer
Manufacturer of electronic motor protection overload relays phase monitor, protection relays & UL approved.

E-Max Instruments, Incorporated - Englewood, CO
Manufacturer
Manufacturer Of Ground Fault Monitors & Power Supplies

General Electric Company - Fairfield, CT
Manufacturer, Custom Manufacturer, Service Company
Electrical Supplies, Lighting Systems, Generators

Jameco Electronic Components & Computer Products - Belmont, CA
Distributor, Manufacturer, Custom Manufacturer
Distributor of relays including high frequency relays. Automotive, delay, digital I/O modules, DIP, general purpose, miniature, power, reed, small signal, octal, PC & surface mount & solid state relays are also available. Markets served include corporations, educational institutions, OEM's & hobbyists.
Brand Names: Jameco

Masline Electronics, Inc. - Rochester, NY
Distributor, Custom Manufacturer
ISO 9001:2000 certified distributor of relays & solenoids including frequency relays, high frequency relays, high speed relays, high temperature relays, & high voltage relays. Varieties include socket compatible & flange mounted relays & latching, sequence & stepper relays. Features include printed circuit terminals & solder plug-in. Services include JIT delivery, project specified sorting, inspection & testing, packaging, & 24 hour emergency service. Industries served include aircraft, automotive, aerospace, & telecommunication.
Brand Names: Agastat, Axicom, Coto, Crouzet, Deltrol, Gordos, Guardian, Infitec, Kilovac, Magnecraft, Midtex,...

Zenith Controls, Inc. - Chicago, IL
Manufacturer
Manufacturers Of Automatic Transfer Switches, Paralleling Switchgear, SCADA Systems, Contactor Relays, Program Clocks & Timing Controls

LLC & Networks Electronic Company - Chatsworth, CA
Manufacturer
Current Sensitive

Siemens Hearing Instruments - Piscataway, NJ
Manufacturer, Custom Manufacturer, Service Company
Manufacturer of safety relays for applications such as emergency stop shutdown, protective door monitoring & protection of presses or punching machines. Electronic enable circuits exhibit permanent function monitoring & low-wear operation as well as high switching frequency

OSRAM SYLVANIA - Danvers, MA
Manufacturer, Custom Manufacturer
Manufacturer of safety relays for applications such as emergency stop shutdown, protective door monitoring & protection of presses or punching machines. Electronic enable circuits exhibit permanent function monitoring & low-wear operation as well as high switching frequency

Siemens Corp. - Washington, DC
Manufacturer, Custom Manufacturer, Manufacturers' Rep, Service Company
Worldwide manufacturer of frequency & high frequency relays including numerical voltage, frequency & overexcitation protection relays. Features auxiliary voltages of 24 VDC, 48 VDC, 60 VDC, 110 VDC, 125 VDC, 220 VDC, 250 VDC & 115 VAC, local operation & LCD for setting & analysis. Used for protection of generators & transformers.

PC & S - Stanhope, NJ
Distributor, Manufacturer
Electrical Transducers & Meters For Measurement & Protection Of Current, Voltage, Power, Frequency, Phase Balance/Loss In Electrical Systems

Esterline Power Systems - LEACH - Buena Park, CA
Distributor, Manufacturer
ISO 9001:2000 & AS 9100:2004 certified manufacturer of dry circuit & frequency relays. DC, electronic, hermetically sealed, interlocking, magnetic latching, motor starting, polarized, solenoid operating, subminiature, auxiliary, circuit breaker, current sensing, delayed action, impulse, plug-in type, printed circuit board (PCB), rotary, solid state & switching relays are also available. Specifications of relays depending upon models include 0.5 A, 1 A, 2 A, 5 A, 10 A, 12 A, 15 A, 25 A, 50 A & 75 A at 28 VDC rated contact, 0.41 in. x 0.81 in. x 0.64 in., 1.01 in. x 0.51 in. x 1.12 in. & 3.71 in. x 3.00 in. x 3.20 in. dimension, 1 PDT to 6 PDT contact arrangement & 0.034 lbs., 0.064 lbs. & 1.42 lbs. weight. Meets Military Spec.
Brand Names: Leach

Lake Shore Electric Corporation - Bedford, OH
Manufacturer
Manufacturer of frequency relays. Specifications of frequency relays include input voltage of 120 VAC, input frequency ranging from 0 Hz to 100 Hz & weight of 20 oz. Other specifications include operating temperature ranging from minus 20 degrees C to plus 60 degrees C & storage temperature ranging from minus 40 degrees C to plus 80 degrees C. Features include single phase sensing with dry contact. Applications include monitor the ascending voltage & frequency of an emergency generator. UL approved.

Switches Unlimited - Woodside, NY
Distributor, Manufacturer, Custom Manufacturer, Service Company
Distributor of switches, circuit breakers, connectors, contacts, controls, controllers, counters, drives, electrical relays, fuses, relays, terminal blocks, terminals, cable ties, timers.

Siemens Venture Capital, Inc. - Boston, MA
Manufacturer, Custom Manufacturer, Service Company
Manufacturer of safety relays for applications such as emergency stop shutdown, protective door monitoring & protection of presses or punching machines. Electronic enable circuits exhibit permanent function monitoring & low-wear operation as well as high switching frequency