Selec DTC231-TC input j or k type, 72*72 Temperature Controller

3-Digit single Red display, Low cost temperature controller with J, K input, Relay output, 72 x 72 mm size, 90 to 270V AC / DC

Specifications (existing/cleaned up)

• Model: Selec DTC231
• Display Size: 72 × 72 mm panel cutout
• Input Type: Thermocouple J-type / K-type (selectable)
• Control Output: Relay / SSR drive (model-dependent)
• Display: Dual display (Process Value + Set Value), LED
• Supply Voltage: 85–270V AC/DC (universal)
• Control Action: ON/OFF or PID (model-dependent)
• Accuracy: ±0.5% of FS (typical for Selec DTC series)
• Mounting: Panel flush mounting with mounting clamps

What is this product?

The Selec DTC231 is a digital temperature controller that reads temperature from a J-type or K-type thermocouple and controls a heating or cooling output to maintain a set temperature. It's designed for compact panel mounting where precise, reliable temperature regulation is needed.

Where is it used?

• Industrial ovens and furnaces for heat treatment
• Plastic extrusion and injection molding machines (barrel zone control)
• Food processing equipment (baking, drying chambers)
• Packaging machinery (heat sealing stations)
• Laboratory and testing equipment requiring stable temperature control

Key technical advantages

The DTC231 stands out for its dual-display design, showing both the current process temperature and the set point simultaneously, so operators don't need to toggle between screens to check status — a real time-saver on busy shop floors. Its selectable J/K thermocouple input means one controller model can be configured for different sensor types already in use across your plant, reducing spare-parts inventory. The compact 72×72mm footprint fits standard panel cutouts used across most Indian machine builders, and Selec's robust build handles the electrical noise common in industrial environments (near contactors, VFDs, motors) without erratic readings — a common issue with cheaper unbranded controllers.

Why buy from Voltkart?

Voltkart is an authorized dealer for Selec, so the DTC231 you receive is 100% genuine with full manufacturer warranty — not a counterfeit or clone unit. Every order comes with a proper GST invoice for clean accounting, PAN India delivery with fast dispatch from our Delhi (Bhagirath Palace) warehouse, and direct WhatsApp support (+91 98996 68881 / 8800754881) for help choosing between J-type and K-type configurations, wiring guidance, or bulk order pricing.

FAQs

Q: Can the DTC231 be switched between J-type and K-type thermocouple input?
A: Yes, the DTC231 supports selectable J-type and K-type thermocouple input via internal configuration settings, so you can match it to whichever sensor type is already installed on your machine.

Q: Does the DTC231 support PID control or only ON/OFF control?
A: This depends on the specific DTC231 variant — some models offer simple ON/OFF control while others support PID control for tighter temperature stability. Let us know your application and we'll confirm which variant suits your accuracy requirements.

Q: What output does the DTC231 use to drive a heater or contactor?
A: The DTC231 typically drives the load through a relay output or SSR (solid-state relay) drive signal, depending on the model — for heavy heater loads, we recommend using it with an external contactor or SSR rather than switching the load directly through the controller's relay.

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