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Rectangular transparent DIN controller with dual red LED display

Tempco

Tempco TEC-8100 34018 HVAC Control 90-250VAC 1/8 DIN 4-20mA

SKU CH-SEVN-BY89B

Digital temperature controller with PID control, 4-20mA output, dual red LED display, and 90-250V AC input for HVAC systems

  • Product colorTransparent
  • PID control mode maintains stable temperature regulation
  • Wide 90-250VAC input voltage suits global power supplies
  • Compact 1/8 DIN dimensions 3.75 in by 1.87 in by 3.12 in fit tight panels
  • 4-20mA output provides standard industrial signal compatibility
  • CE, CSA and UL certifications confirm safety compliance

HVAC Control 90-250VAC

The Tempco TEC-8100 34018 is a digital temperature controller built for HVAC systems. It accepts TC or RTD sensor types and delivers a 4 to 20 mA output. The unit fits a 1/8 DIN cutout and operates on 90 to 250V AC. Dual red LED displays show process values clearly.

Replaces basic thermostats

Upgrade from simple on-off thermostats when a process needs PID control and programmable sensor flexibility. The jump is worth it for applications that demand tighter temperature stability and alarm relay contacts rated at 2A. It suits panels where a 1/8 DIN footprint is already specified.

Limits of 4-20mA loop

The 4 to 20 mA output suits standard industrial current loops but cannot drive voltage-input devices without a shunt resistor. Loop length and supply voltage set the maximum load resistance, so very long cable runs may need a higher compliance supply. The controller draws 15 VA and meets CE, CSA and UL standards.

How it compares

Measured against everything we stock in Heating & Cooling Controllers, at today’s prices. Recalculated every night.

Price $207.99
Pricier than about 83% of the 1,762 comparable items (median $45.99).

Specifications

Product
Brand nameTEMPCO
Product colorTransparent

Questions about this item

What panel cut-out does the 1/8 DIN body of the TEC-8100 require?

The controller measures 3.75 in long, 1.87 in wide and 3.12 in deep; allow a matching 1/8 DIN aperture with clearance for the rear terminals.

Which wiring step on the 90-250 V AC supply terminals is most often missed?

Installers frequently forget to bridge the sensor type selection jumpers before applying power, so the PID loop reads the wrong input range.

When should the dual red LED display or the 4-20 mA output be checked for drift?

Verify display accuracy and loop current annually, or after any process upset, because the 15 VA supply and relay alarms can mask gradual calibration shift.

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