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Vital questions to ask when you need a current switch
Vital questions to ask when you need a current switch
October 31, 2019

Current Switch Questions we will ask you to make sure you get the right product for your application:
(*Required)


Re: The current in the wire we are sensing

  1. *AC or DC Current?

  2. *Min/Max Current range in Amps?

  3. At what Voltage?

  4. *Outside diameter of the wire? (to make sure it fits through switch)

  5. *Solid core or Split Core style? (solid requires access to end of wire)

  6. What is the ambient temperature range where switch will be installed?

Re: The output required from the switch

  1. *Switching AC or DC on output relay contacts?

  2. *Max Current being switched through relay output contacts?

  3. *Voltage being switched through relay output contacts?

  4. *Normally Open or Normally Closed relay contact?

    a) N.O. relay contact – Output is open if no current or current flow below set-point
    b) N.C. relay contact –Output is closed if no current or current flow below set-point

  5. Setpoint adjustment type? Fixed, Factory set, Field Adjustable

  6. Require indication?

  7. Require transmitter output too?

Re: Power required to operate the switch

  1. *Power for current switch?
    a) Self-powered? (gets power from wire being measured)
    b) AC Powered? (typically 120 VAC or 24VAC)
    c) DC Powered? (typically 24 VDC)

Re: Approvals required

  1. Do you require UL or CSA approval?

    See all of our current switch options here http://modtronics.vestranet.com/current-switches-67-1098.html

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Mod Tronic Instruments Limited
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