Wattco™ Temperature Control Panels

Control panels are used to maintain the heating system’s stability and heat transfer efficiency to prevent issues such as overheating and chemical disintegrations of a fluid. To provide the precise safety mechanism of the heating system, control panels can also be entirely customized to meet most of the requirements of the target application.

Terminal boxes in Wattco™ temperature control panels

Various terminal boxes are available depending on the protection required- moisture-proof, explosion-proof, waterproof, and dustproof. A NEMA 1 standard terminal box is normally suitable for non-hazardous area operations.

NEMA 4 terminal boxes (weather-resistant enclosures) are commonly used for outdoor operation, which requires protection against moisture and humidity. Digital temperature controllers are installed to monitor the ambient and set-point temperature. A typical control panel set possesses of switching and fusing devices, including internal wirings.

Safety sensors for temperature control panels

Along with the temperature sensor tools such as RTD and thermocouples, Wattco’s control panels will ensure maximum heat generation safety for various voltage ranges. The support and safety documentation (with schematics support, drawings, and bills of material) would ensure the control panels will be installed and operated perfectly as designed. Industrial control panels regulate temperature and provide safety mechanisms to prevent overheating your liquid and protect your heating elements.

Temperature control panels for hazardous operations

Control panels come in many different terminal boxes – standard NEMA 1 terminal boxes, dust proof boxes, waterproof boxes and explosion-proof boxes for hazardous areas. Digital controllers are used to display ambient and target temperatures of your solution. They contain contactors, relays, fuses, on–off disconnect switches, and other components to help regulate your Wattco™ heater in a safe environment. In conjunction with thermocouples or RTD sensors, temperature controllers are the “brains” of the system and determine the heat intensity of your heaters.

Voltages for temperature control panels

Heating control panels are typically available for heaters generating at least 30 Amps to over 200 Amperes. Special accommodations can be made for systems that are over 200 Amperes. NEMA 4 terminal boxes are typically used for outdoor applications where concerns of moisture and humidity is a factor. Flow switches can also be used for circulation heaters. All Wattco™ control panels come with circuit schematics and support documentation that might be required for configuration purposes.

Get a quote on a control panel today. Wattco™ also manufactures other industrial heating products such as circulation heaters, infrared heaters, immersion heaters and more. Click here to view all of our products.



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  • Options
  • Basic Controls

    Type 4 weather resistance enclosure (hinged door). Fused magnetic contactor(s). On-off switch and pilot light. Fused control circuit. Transformer including 120V secondary control voltage. Terminal blocks for external control devices.

  • Advanced Controls

    Type 4 weather resistant enclosure (hinged door) Disconnect switch including door interlock Fused magnetic contactor(s) for definite purpose On-off switch Fused control circuit transformer including 120V secondary control voltage Digital indicating configurable processor based temperature Electronic high limit (manual or auto reset) Pilot lights: “heat on”;”system on”;”high limit”

  • Multi-Stage Controls

    A modulating temperature control with step control, bringing contactor stages. Type 12 dust tight enclosure. Disconnect with door interlock 2-12 fused contactors. Fused control circuit transformer. On/off selector switch and pilor light. High limit trip pilot light. Digital indicating control (on site or factory configurable). Manual reset limit.

  • Step Controls and SCR Solid state power control

    Type 12 dust tight enclosure Disconnect with door interlock Fused contactors Fused control circuit transformer On/off selector switch and pilot light High limit trip pilot light Heating stages pilot light Process control Manual reset limit

Double digital control panel with Contactors NEMA 4
Dustproof Standard Dual Wattco Temperature Control Panels
Integrated control Panel
Internal Temperature Control Panel Controls
Multi circuit controls
Stand Alone Temperature Control Panel with Step Controllers
Standard Wattco Dual Temperature Control Panel
Standard Wattco Temperature Control Panel
Temperature Interior Control Panel
Touch Screen Wattco Temperature Control Panel
WATER Resistant Wattco Temperature Control Panel
WATTCO Dual Stainless Steel Temperature Control Panel
WATTCO SCR Temperature Control Panel
Wattco Stainless Steel Dual Temperature Control Panel
Wattco Step Controller with 4 Circuits
WATTCO Temperature Control Panel (Single)
  • Control panels with voltages up to 4000 amps, 600V;
  • Basic models: CPP, TBD (remote mounted controls available upon request);
  • Fully-equipped models:
  • Contactor power switching
  • Stage contactor
  • Solid state switching)
  • Package includes:
  • Design drawings
  • Replacement parts
  • Operating instructions
  • Component manuals   
Basic Controls For electric heaters with thermostats, limit controls, percentage timers or other control components
Advanced Controls Ideal for various electrical installations
Contactor Stages Suitable for multi-stage heaters
Base-Load – SCR Contactor stages controlled by a step control and SCR solid state power control
  • Remote set point;
  • Proportioning;
  • Process variable retransmission;
  • Alarms;
  • Remote annunciation;
  • Dual energy and peak load controls;
  • Current/voltage/wattage metering  and interfacing PLCs.
  • NEMA 4 moisture proof panels are available


  • Reliable
  • Cost effective
  • Ready-to-connect
  • Compatible with different materials (dust, oil, water, corrosive, dangerous materials)