3-Digit single Red display, Low cost temperature controller with J, K input, Relay output, 48 x 48mm size, 90 to 270V AC / DC
| Brand |
Selec
|
| Model No. |
DTC503
|
| Input Type |
Thermocouple, RTD
|
| Display Type |
3 Digit/7 Segment
|
| Country of Origin |
Made in India
|
Specifications (existing/cleaned up)
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Model: Selec DTC503
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Display Size: 48 × 48 mm panel cutout
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Input Type: Thermocouple J-type / K-type (selectable)
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Control Output: Relay / SSR drive (model-dependent)
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Display: Dual display (Process Value + Set Value), LED
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Supply Voltage: 85–270V AC/DC (universal)
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Control Action: ON/OFF or PID (model-dependent)
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Accuracy: ±0.5% of FS (typical for Selec DTC series)
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Mounting: Panel flush mounting with mounting clamps
What is this product?
The Selec DTC503 is a compact digital temperature controller that reads temperature from a J-type or K-type thermocouple and drives a heating or cooling output to hold a set temperature. Its small 48×48mm size makes it ideal for space-constrained control panels where multiple controllers need to fit together.
Where is it used?
- Small industrial ovens and drying chambers
- Plastic molding and extrusion machine zone control
- Packaging machinery heat-sealing stations
- Lab incubators and test chambers requiring stable temperature
- Food processing equipment (baking trays, proofing chambers)
Key technical advantages
The DTC503 stands out for its compact 48×48mm footprint, letting you fit more controllers into a single panel row compared to larger 72×72mm or 96×96mm models — a real advantage on multi-zone machines like extruders needing 4-6 temperature zones controlled side by side. Its dual-display design shows process value and set value simultaneously, so operators can check status at a glance without cycling through screens. The selectable J/K thermocouple input means the same physical unit can be configured for whichever sensor is already installed on your machine, reducing the need to stock multiple controller variants. Selec's build quality also holds up well against electrical noise from nearby contactors, VFDs, and heater loads, avoiding the erratic readings that cheaper unbranded controllers are prone to in busy industrial panels.
Why buy from Voltkart?
Voltkart is an authorized dealer for Selec, so the DTC503 you receive is 100% genuine with full manufacturer warranty — not a counterfeit or clone unit. Every order comes with a proper GST invoice, PAN India delivery with fast dispatch from our Delhi (Bhagirath Palace) warehouse, and direct WhatsApp support (+91 98996 68881 / 8800754881) for help with J/K configuration, wiring guidance, or bulk order pricing.
FAQs
Q: Can the DTC503 be switched between J-type and K-type thermocouple input?
A: Yes, the DTC503 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 without buying a different model.
Q: Is the DTC503 suitable for multi-zone machines needing several controllers in one panel?
A: Yes, its compact 48×48mm size is specifically suited for multi-zone applications like extruders or ovens where several controllers need to be mounted close together in a limited panel space.
Q: Does the DTC503 support PID control for precise temperature stability?
A: This depends on the specific DTC503 variant — some models offer basic ON/OFF control while others support PID control for tighter accuracy. Let us know your application's precision requirement and we'll confirm which variant fits best.
Related Products & Collections
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