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  1. jlr899

    Foxboro/Eckart SRD991 Positioners Overheating

    Replacing old Bailey control valve positioners with Foxboro-Eckardt SRD991 intelligent positioners on our waste heat boilers. Worked fantastic until the warmer ambient temps reach into the 90'S at which time they started to overheat and fail until they cool down. Foxboro stated temp rating at...
  2. jlr899

    Foxboro SRD991 Positioners Overheating?

    Replacing old Bailey control valve positioners with Foxboro-Eckardt SRD991 intelligent positioners on our waste heat boilers. Worked fantastic until the warmer ambient temps reach into the 90'S at which time they started to overheat and fail until they cool down. Foxboro stated temp rating at...
  3. jlr899

    GE MicroVersaTrip Plus Trip Unit Sizing?

    Very helpfull, Thanks to all!
  4. jlr899

    GE MicroVersaTrip Plus Trip Unit Sizing?

    Installing an air compressor with a 400Amp motor, will be powering from a GE AKR-9D-30H 800A frame breaker. The breaker currently has a 800Amp MicroVersaTrip Plus Trip unit (A208LSG) in it. My question is can I just replace the 800A (TR8B800)chip with a 400Amp chip (TR4B400)or do I also need a...
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