Watlow PM8C4CJ-AAFJFAA Controller

The Watlow PM8C4CJ-AAFJFAA Controller from Thermal Devices, an authorized Watlow distributor. The EZ-ZONE PM panel mount controller offers control options that reduce system complexity and thermal loop ownership cost. It can be ordered as a PID controller, an over/under limit controller or its functions can be combined into an integrated controller. An option to integrate a high amperage power controller output with a high-performance PID controller and an over/under limit controller in one space-saving, panel mount package is also available. Many communications options are offered to support connectivity needs.

Usually Ships in 4-6 Business Days



Watlow PM8C4CJ-AAFJFAA Controller

  • Integrated functions and high amperage power control output lower ownership costs
  • Current monitoring detects heater current flow and provides alarm indication of a failed output device or heater load
  • Features a wide range of serial communications capabilities
  • Dual-channel controller provides two PID controllers in one space-saving package
  • Configuration communications with software saves time and improves reliability of controller setup

Watlow PM8C4CJ-AAFJFAA Controller



Product Line

PM Controls


Please contact a Thermal Devices Sales engineer at 301-831-7550 to verify form, fit, and function when replacing an obsolete or legacy product with this product

Line & Load Voltage

20 to 28VAC or 12 to 40VDC, plus 2 digital I/O points

Watlow Code Number


Input 1

PID controller with universal input


Call us at 301-831-7550 for mode description

Output 1 and 2

Switched DC/open collector, Mechanical relay 5A, Form A

Output 3 and 4

Universal process, Mechanical relay 5A, Form A


1/8 DIN



Lead Time

4-6 Business Days (Call us at 301-831-7550 for next day shipping)

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