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Relays Overview


Relays
Relays

We offer the broadest range of relays and contactors in the world. Our line includes leading brands such as AGASTAT, AXICOM, CII, HARTMAN, KILOVAC, OEG, P&B, PRODUCTS UNLIMITED and SCHRACK, as well as TE Connectivity.

Switching capabilities range from dry circuit to 1,600A, up to 70kV, and as high as 6 GHz. Electromechanical, solid state and hybrid types range from SMT PC board mount devices to large panel mount units. Our broad line of relays features expansive sets of options for enclosure, termination, input, contact arrangement and rating. High performance types are designed specifically to operate in extremely rigorous environments (shock, vibration, temperature, altitude) such as encountered in military and aerospace applications.

Documents & Resources

Products

    Aerospace, Ground Power and Industrial High Performance Contactors
  • Designed for application in demanding conditions (extremes of temperature, shock, vibration
  • Typically either hermetically or gasket sealed, they are offered for panel, plug-in and bus bar mounting.
  • Many are customized to specific customer requirements and offer complex auxiliary switch arrangements in addition to their main contacts.
    Automotive Relays & Modules Data Sheets
  • Automotive relays and modules are optimized for use in motor vehicles (lower voltage dc loads).
  • Modules package one or more relays with other circuitry.
  • Panel mount, plug-in and PC board versions of these products are offered.
    Communication/Signal PC Board Relays
  • Designed to switch signal-level loads in communications systems, test gear, thermostats, instrumentation, consumer electronics and industrial equipment.
  • Some switch maximum currents up to 5 amps, but they usually switch only milliamps in application.
  • Most are sealed, and some offer surface mount terminals.
    Contactors
  • These contactors, typically rated 20 amps and higher, are designed for use in HVAC systems for industrial equipment and in other such applications
  • From one to four poles, utilize double-make/double-break contacts
  • Contactors, the contact motion is typically linear, whereas the contacts usually move in a slight arc in power relays.
    High Performance Solid State Relays and Power Controllers
  • Designed for application in demanding conditions (extremes of temperature, shock, vibration, etc.)
  • Some incorporate circuit protection or other logic functions in addition to their switching capability.
  • PC board and panel mount types
    High Performance Time Delay Relays
  • Designed for application in demanding conditions (extremes of temperature, shock, vibration, etc.)
  • They combine an internal timer, fixed or adjustable, with either an electromechanical or solid state output relay.
  • Many of these products are custom designed to meet a customer's specific requirements.
    High Voltage Relays
  • These relays are specifically designed to switch high voltages. Some switch only several hundred volts, and others switch up to 70kV.
  • Perform their switching function in either a vacuum or a gas-filled chamber.
  • Some make and break loads, while others only carry current.
    Low Signal High Performance Relays
  • Hermetically sealed relays, rated five amps or less, are designed for application in demanding conditions
  • Offer from one to six poles, and some can switch up to 6GHz.
  • Enclosures range from TO-5 and 0.100 grid relays to full size (crystal can).
  • PC board, plug-in and panel mount types are offered.
    Mid-Range High Performance Relays
  • Rated to carry maximum currents from three to 20 amps in a broad range of commercial and industrial applications.
  • The splash-resistant, flux-tight and sealed models in this category were specifically designed for mounting on a printed circuit board.
    Mid-Range PC Board Relays
  • Rated to carry maximum currents from three to 20 amps in a broad range of commercial and industrial applications.
  • The splash-resistant, flux-tight and sealed models in this category were specifically designed for mounting on a printed circuit board.
    Plug-in/Panel Mount General Purpose Relays
  • Typically rated to carry maximum currents from 5 to 20 Amps in a variety of commercial and industrial applications.
  • One to eight poles, originally designed to be plugged into a socket or mounted to a panel, but PC terminals are an option.
    Power PC Board Relays
  • Rated to carry maximum currents greater than 20 Amps in a broad range of applications.
  • The open, enclosed, flux-tight and sealed models are designed for PC board mounting.
    Power Relays
  • Rated to carry maximum currents greater than 20 Amps in a broad range of applications.
  • The open and enclosed models were originally designed for mounting on a panel, but some models offer PC terminals as an option.
  • Auxiliary switches are available on some of these one- or two-pole relays.
    Force Guided Contact Relays
  • Designed for safety with contacts that are mechanically linked so normally open and normally closed contacts cannot be closed simultaneously.
  • Used in critical applications (elevators, escalators, light curtains, press controls, etc.)
    Sensors & Protective Relays
  • Uses internal electronic circuits to detect, monitor and/or sense current, voltage, frequency, phase and/or power, opening or closing circuits
  • Hermetic or gasket seal models are available.
    Solid State Relays & Input/Output Modules
  • Perform their switching function with solid state components, offer one, two or four outputs, can switch up to 125 Amps.
  • Input/output modules are designed for industrial automation systems.
  • They are available for panel or PC board mounting and are used in many diverse applications.
    Time Delay Relays & Timing Modules
  • Designed for application in a broad range of commercial and industrial applications.
  • Combine an internal timer, fixed or adjustable, with either an electromechanical or solid state output.
  • Contacts rated up to 10 amps, while timing modules typically control an external relay that performs load switching.
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