TCR9C Series - Littelfuse TCR9C Relays Provide Exceptional Temperature Control

Series: TCR9C
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The solid-state TCR9C Series Relays are designed for dedicated temperature control of resistive loads. These relays feature a single setpoint controller with high-current, solid-state output. The TCR9C relay is a low-cost, modular approach to accurate temperature control and supports loads up to 20 A. The efficient mounting surface allows for utilization of equipment as the heat sink.

Operation Setpoint Control: TCR9C is a single setpoint temperature controller. When the thermistor resistance is high (above the setpoint), the solid-state output is ON. When the thermistor resistance decreases (temperature increases) to the setpoint or below, the output turns OFF. It should be noted that temperature differential (under and overshoot) is largely due to the system as a whole. The mass of the system, size of the heaters, and sensor all play an important part. Single setpoint control is best when there is little or no lag time between the heater and sensor, and when the heater is not oversized.

Features

  • NTC thermistor sensing
  • Solid-state output
  • External setpoint adjustment
  • Metalized mounting surface
  • Encapsulated

Product Literature

Access specifications, certifications, check availability and order parts below

Catalog #Input
Voltage (V)		Output
Form		Termination TypeMounting MethodWeight (lbs/g)Control TypeDielectric BreakdownHumidityInput AC Line Frequency (Hz)Input Tolerance (%)Open State Leakage Current (A)Minimum Output Load Current (A)Output Load Rating (VA)Output TypeOutput Voltage Drop (V)StockSamples
TCR9C120 - 240 VacNon-isolated single pole zero voltage switching0.25 in. (6.3 mm) male quick connect terminalsSurface mount with one #10 (M5 x 0.8) screw0 KgSingle setpoint; negative temperature coefficient resistance sensing≥2000 terminals to mounting surface95% non-condensing50 / 60±15%≅5 @230 Vac100Steady state: 20 A; Inrush: 200 ASolid state≅2.0 at rated currentCheckOrder

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