Sunday, February 24, 2019

MDI 100 Amp Mercury Relays

Sords Electric Sells 100 Amp Mercury Relays from MDI

Mercury Relays are devices that use Mercury to conduct and electrical circuit to turn on and off an electrical circuit. The Mercury Relays or contactors can switch very quickly and have a very long life. Mercury relays are a preferred method to turning on electrical resistance heating elements. Mercury relays are also excellent in traffic control as they have a very high ambient temperature resistance.

Mercury Relay features:


  • ADVANTAGES OVER ELECTROMECHANICAL AND SOLID STATE RELAYS
    1. Superior Performance and Reliability
      1. Long life
      2. Durable
    2. Compact Size
    3. Low, Predictable Contact Resistance
    4. Reduced RFI for Improved Interface Capability
    5. Handles a Variety of Loads
      1. Increases design flexibility
    6. Rapid On-Off Cycling Capability
      1. Mercury quickly dissipates contact heat
    7. Low Coil Power Requirements
    8. Minimal Derating Due to Higher Ambient Temperatures
    9. Quiet Action
  • DESIGN and CONSTRUCTION
    1. Contacts are within a hermetically sealed steel body
      1. Impervious to adverse conditions
      2. No external arcing
    2. Arcing is in a gaseous atmosphere
      1. Quenches the arc
      2. Extends relay life
    3. Only one moving part (the plunger)
      1. No buttons to pit, weld or burn out
    4. One coil for each set of contacts
      1. Assures consistent switching
      2. Minimizes pull-in variation between contacts
    5. Epoxy encapsulated
      1. Moisture resistant
      2. High dielectric strength
      3. Permanently fixes contacts to coil; eliminating possible misalignment
      4. Helps dissipate heat and noise
      5. Rugged (impact resistant)
  • BENEFITS
    1. Reduction of Operational and Maintenance costs
    2. Increases Utilization and Productivity of Equipment
      1. By reducing down-time
    3. Installation and service is a routine operation
      1. Simple to install
      2. No sophisticated equipment is required
      3. Easy to trouble-shoot




  • MDI Mercury relays come in single pole, double Pole, 3 pole and 4 pole versions and both normally open and normally closed. Normally open are more common for heaters. The voltage rating is for the contractor coil.  All the MDI mercury contractors can switch their rated amperage and up to 600 volts.

    Single Pole MDI 100 Amp Mercury Contactors




    MDI 100NO120A, 100 amp Mercury Contactor, Single Pole, 120vac Coil
    MDI 100NO24A, 100 amp Mercury Contactor, Single Pole, 24vac Coil
    MDI 100NO220A, 100 amp Mercury Contactor, Single Pole, 220vac Coil

    MDI 100NO480A, 100 amp Mercury Contactor, Single Pole, 480vac Coil

    MDI 100NO24D, 100 amp Mercury Contactor, Single Pole, 24vdc Coil

    Double Pole MDI 100 Amp Mercury Contactors



    MDI 2100NO120A, 100 amp Mercury Contactor, Two Pole, 120vac

    MDI 2100NO24A, 100 amp Mercury Contactor, Two Pole, 24vac

    MDI 2100NO220A, 100 amp Mercury Contactor, Two Pole, 220vac

    MDI 2100NO480A, 100 amp Mercury Contactor, Two Pole, 480vac

    MDI 2100NO24D, 100 amp Mercury Contactor, Two Pole, 24vdc

    Three Pole MDI 100 Amp Mercury Contactors



    MDI 3100NO120A, 100 amp Mercury Contactor, Three Pole, 120vac

    MDI 3100NO24A, 100 amp Mercury Contactor, Three Pole, 24vac

    MDI 3100NO220A, 100 amp Mercury Contactor, Three Pole, 220vac

    MDI 3100NO480A, 100 amp Mercury Contactor, Three Pole, 480vac

    MDI 3100NO24D, 100 amp Mercury Contactor, Three Pole, 24vdc

    Four Pole MDI 100 Amp Mercury Contactors







    MDI 4100NO120A, 100 amp Mercury Contactor, Four Pole, 120vac

    MDI 4100NO24A, 100 amp Mercury Contactor, Four Pole, 24vac

    MDI 4100NO220A, 100 amp Mercury Contactor, Four Pole, 220vac

    MDI 4100NO480A, 100 amp Mercury Contactor, Four Pole, 480vac

    MDI 4100NO24D, 100 amp Mercury Contactor, Four Pole, 24vdc

    Contact Sords Electric

    Sords Electric
    216-7656-4230
    www.sordselectric.com