Delta DTC3000 12.9 mm Slim DIN-Rail Temperature Controller

DTC3000 12.9 mm slim DIN-rail temperature controller

The Delta DTC3000 is a slim temperature controller that is only 12.9 mm wide and snaps onto a standard DIN rail. It has no large display; instead seven LED indicators show power, communication, output action and control mode, and the module is designed to be monitored over RS-485. That makes it a space-saving choice when a cabinet has to hold dozens of heating loops. Seven Star LLC supplies the DTC3000 in Oman and the GCC as an independent supplier in Muscat.

DTC3000 is a model name, not a configurable ordering code, and the product page publishes a single specification set. There are no option digits to decode, so the selection work is about sensor type, output wiring and how the unit will be commissioned from a PLC, HMI or PC.

DTC3000 technical specifications

How the DTC3000 saves cabinet space

A conventional 48 × 48 mm controller needs a panel cut-out per loop. The DTC3000 moves the loop electronics onto the DIN rail inside the cabinet, so the front door can stay free for an HMI that shows all loops at once. Delta’s own application example, a wafer wet-processing tool with 24 loops, claims that the same control setup needs roughly half the cabinet area when slim modules are used. That figure is Delta’s example, not a guarantee, but it shows the intended use: many loops, little room.

The control core is the same family technology as the DTX500: a 2-DOF PID algorithm tuned for disturbance resistance, a 20 ms sampling option, enhanced cold junction compensation and protection functions including anomaly detection and a loop break alarm. The seven LEDs give a quick local status check without a display.

Outputs and wiring on the DTC3000

The control output is a 12 V pulse designed to drive a solid-state relay, with a 0.1 to 60 s cycle. The subsidiary output is a relay contact rated at 250 V AC and 3 A resistive. It can act as an alarm output or as a second control output, for example a cooling element, but its 10 to 60 s output cycle and finite electrical life of at least 100,000 operations mean it should not be used for fast cycling. For rapid switching, put the load on the pulse output and an SSR.

Wiring is through terminal blocks on the front of the module: 24 V supply, RS-485 pair, the SUB relay contact, the OUT pulse pair and the sensor input. Keep sensor and RS-485 cabling separated from power cabling, and terminate the RS-485 line properly on long runs.

Where the DTC3000 fits and related parts

Within Delta’s range the DTC3000 is the cabinet-mounted option between the DTX500 mini panel controller, which has a front display, and the DTDM modular series, which handles up to 32 PID loops with EtherCAT to a host. If you need operator-visible values at each loop, the DTX500 is easier; if you want one network and one HMI for many loops, the DTC3000 is the better fit. Supporting items such as 24 V DC power supplies, SSRs, thermocouples and RS-485 converters can be quoted with the controllers.

Selection and ordering checklist for the DTC3000

• Number of loops and how they will be addressed on RS-485 (unique Modbus address and baud rate per module).
• Sensor type: thermocouple letter, RTD type or analog signal, and the measuring range.
• Output plan: SSR on the pulse output, relay on SUB for alarm or secondary use.
• 24 V DC supply capacity for all modules, at 1.5 W or less per module.
• Mounting: standard DIN rail with 12.9 mm pitch, and cabinet depth for 90 × 72.6 mm module faces.
• Operator access: the unit has LEDs only, so decide whether a PLC, HMI or PC will show values and handle setpoints over Modbus.

Installation, commissioning and maintenance

Fit the modules side by side on the rail, leaving ventilation space between heat-producing items such as SSRs and power supplies. Commission one loop at a time: input type and range, output cycle, alarm and loop-break settings, then PID tuning on the real load. Save the parameter set from the first module and use it as a template for the others so that replacements can be reloaded quickly.

Routine maintenance covers sensor verification, checking SSR and relay condition, and watching the status LEDs and communication health. If a relay on SUB has been cycled aggressively, plan its replacement around the 100,000-operation life rating.

Typical applications for the DTC3000 in Oman and the GCC

Delta lists electronics manufacturing, packaging machinery, food and beverage production, woodworking machinery and industrial ovens. For Gulf industry this translates into multi-zone ovens, packaging and sealing lines, water-treatment or chemical dosing skid heaters, laboratory test rigs and OEM machines with many small heater zones. Panels in Oman should be designed to hold the specified 0 to 50 °C ambient: shade, ventilation or cabinet cooling are the main design points, and dust-tight enclosures help in desert sites. The DTC3000 is a general-purpose controller and we do not claim hazardous-area suitability.

Information to send with a DTC3000 RFQ

• Quantity of modules and total number of loops.
• Sensor types and ranges per loop.
• Heater power and the switching device (SSR or contactor).
• Host system for RS-485 Modbus: PLC, HMI or PC software.
• Cabinet environment and ambient temperature.
• Delivery location in Oman or the GCC.

Documents and quotation

A datasheet is not attached to this page. Send us the part number DTC3000 and we will confirm which official documents are available, along with lead time and commercial terms.

Seven Star LLC is an independent supplier in Muscat and not an official representative of Delta. We quote against the part number and quantity you provide.