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  1. akrus

    Hipot versus Isulation Resistance Test

    I agree with this in a general sense and I'm not trying to argue otherwise. The conflicting information is things like which test to run first, whether a particular test is for qualification or production, etc. The application is typically low voltage DC and tested per MIL-STD-202G Methods 301...
  2. akrus

    Hipot versus Isulation Resistance Test

    Thanks to all for your input. @AK2DM Your post is a good example of what I'm talking about with conflicting information. I agree that usually IR is performed before hipot, and could easily find some sources saying so, but the pdf you linked says to do it afterwards. I also agree that 500VAC...
  3. akrus

    Hipot versus Isulation Resistance Test

    I have been reading a lot about the distinctions between Dielectric Withstand (Hipot) and Insulation Resistance testing. There is a lot of conflicting information out there about the merits of each, especially if you read a response from a manufacturer of particular test equipment. I...
  4. akrus

    Relay outputs and inductive loads

    All- I appreciate the responses. iceworm - I agree that the current for the solenoids is 420mA. itsmoked – I believe 2A is the output rating of per contact and 10A per common. I think a low value like 100mA would be for solid state outputs. Maybe I should reframe my question a little. I...
  5. akrus

    Relay outputs and inductive loads

    I have an application where among other things I need to control some solenoids and motors from a PLC. One of the project requirements is that I must keep leakage current as low as possible and therefore I must use relay outputs instead of solid state. The datasheet for the module says that...
  6. akrus

    Contactor for compressor: IEC or definite purpose?

    Thank you everyone. I’m glad I’m not the only one who doesn’t like the DP contactors. Regarding the wiring, would using only two of the three poles have any effect on the life of the contactor? Even though this is for an OEM application, I think the volume is low enough that the slight...
  7. akrus

    Contactor for compressor: IEC or definite purpose?

    Hello I need to select contactors for some 220V single-phase compressors. I have experience with three-phase motor control but I’m not familiar with typical practices in single-phase applications. I’m trying to decide between using an IEC contactor or a definite purpose contactor. I haven’t...

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