Design Features:

• NEMA enclosure
• Choice of temperature controller
  • Model TEC-4400 1/4 DIN or TEC-9400 1/16 DIN
    temperature control, dual display with auto-tuning and bright LCD displays using NFPA/IEC standard colors
  • Model TEC-410 1/4 DIN or TEC-910 1/16 DIN high limit control with FM approval and manual reset pushbutton switch
  • Additional models are available from our complete line of TEC Temperature Controllers
• Circuit breaker or fused disconnect with turn handle option
• Class CC & J fusing offers best-in-class current limitation offering reliable interruption of all overcurrents with protection up to 200kA
• Main Power: Up to 600 VAC three-phase
• Heater Power: Up to 600 VAC three-phase
• High limit safety contactor
• Power On pilot lamp
• Control transformer, fused primary and secondary
• Power output connections hardwired to fuse holders
• Sensor input connections hardwired to labeled
  terminal blocks
• Paperless data logger
• PLC based control with touch panel display
• Ventilation fan and filter, heat-tube, air conditioning or other cooling methods
• Anti-condensation enclosure heater
• Twist-lock or jack panel connections available for external connection
• Audible/Visual alarms
• Hazardous Locations
• Agency Approvals: File #: E307875
  

Heater Power Output

• SCR output device and fused sub-circuits
• Solid state relays with individual relays per fused sub-circuit
• Mechanical Contactors or optional Mercury relays

Range in Capacity: from 4.8KW through 332KW.

Designed to run process heating systems using circulation heaters, duct heaters or any other resistive load.

Factory pre-wired in accordance with the National Electrical Code, NFPA79, UL508A and any special local electrical codes required by the customer.
UL508A certification available when requested.

Control systems are based on SCR power controls, solid state relays or mechanical contactors.

Standard Features:

• Silicon Controlled Rectifier (SCR) Power Controls are solid state devices that provide infinitely variable power to accurately maintain setpoint temperature and extend heater life by maintaining a stable process temperature.
  • Single-phase systems use single-phase zero cross SCRs
  • Three-phase systems use 2-leg zero cross or 3-leg phase-angle SCRs dependant on load type
• Solid State Relays offer many of the benefits of SCRs often at a lower cost, but are limited to an 80 Amp load.
• Mercury Relays offer a low-cost alternative to SCRs and SSRs for process heating applications and provide longer life than a mechanical contactor due to their self-renewing mercury contacts.