Tempco Custom Heater Manufacturing


April 29, 2020

Often Tempco will receive requests for control panels with custom requirements. Recently we completed two variations of table-top control panels that allow for portability and convenience. Both variations feature power cords and outlets as well as receptacles for sensor inputs. These features eliminate the need for qualified installation personnel to:

  • Create new space/plan for where the installation would be most effective
  • Run new conduit • Mount control panels to suitable fixtures (usually a concrete wall)
  • Install new circuit protection rated for the control panel installation


2-zone table-top control panel

When Tempco was approached by an existing customer in the textile industry who needed a table-top solution for a batch mixing process. The unit needed to be portable and “plug-and-play” because it would be frequently moved around from batch to batch. Tempco furbished a 24A rated, ramp-and-soak control panel with two zones. The controller for Zone 1 initialized the controller for Zone 2 after a preset period of time. Then it allowed both zones to operate for another preset period of time. Each zone utilized Harding multi-pin connectors and a 20-ft. power cord with plug for easy set-up. The challenge for this unit was to utilize an enclosure that fit the dimensions available from the customer. A “consolet” enclosure was used because it was well-suited for benchtop viewing and operation. A custom sub-panel was fabricated to mount the internal components since space was hard to come by.


3-zone table-top control panel

A customer who specializes in innovative solutions for industry found Tempco’s website and contacted us regarding a similar control panel. They needed a 3-zone control panel with high limit over-temperature devices. As they were unsure of the amount of current needed for each zone, the entire control panel was made with a total capacity of 15 amps. Additional requirements of the control panel were:

  • “Plug-and-Play” power and communication – Tempco provided a 6-ft. power cord as well as twist-lock receptacles and pin/socket connectors.
  • RS-485 Communication for remote control over the customer’s network - Process Temperature Retransmission
  • Alarm outputs to indicate when the process value (temperature) was within a pre-determined range.

The main challenge of this project was the customer requirement that all inputs and outputs be located in the rear of the enclosure while all controls needed to be mounted on the front. This created a wiring challenge that and was solved by fabricating a custom sub-panel with stand-off’s and large openings that allowed wires to be transferred from the door to the back wall.

Controls Engineer


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Tempco Electric Heater Corporation

607 North Central Avenue
Wood Dale, IL 60191-1452 USA
Phone: 630.350.2252   Toll Free: 888.268.6396
Fax: 630.350.0232   Email: [email protected]

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Email: [email protected]
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