Signal Conditioners, Temperature Transmitters and Controllers
Modbus RTU, Modbus TCP, Canbus, PLC's and Hmi's.
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  • Temperature Controller DRR245.

    • UL, CE.
    • DIN Rail Mount Temperature Controller
    • PC Programmable
    • Memory Card Programmable
    • Isolated
    • 2 Relays
    • SSR
    • 4-20 mA output
    • Modbus RS485

DIN RAIL Mounted Temperature Controller, DRR245

General Description

The DRR245 DIN Rail Mounted Temperature Controller is designed to be installed in a control room or MCB and comes standard with 2 Relays, SSR output and Modbus RTU. There is also a digital input to activate a process which allows soft start and gradient temperature rise. Also as standard is a Current Transformer input.
The DRR245 accepts inputs from most sensors including Thermocouples K, J, R and S. RTD PT100, PT500, PT1000 NI100. Thermistors PTC1K and NTC10K. Process signals 4-20 mA, 0-20 mA, 0-10 Volts, 0-40 mV and Potentiometers with a range up to 150 K Ohms
The DRR245 has two 4 digit displays, one for the Process variable and the other for the Set point.
The DRR245 also has 2 relays and a Solid State Output with On-Off Control, Proportional Control, Proportional Integral Control, Proportional Integral and Derivative Control. This control can be set up manually or with Auto tuning.
The DRR245 can be programmed with the front panel keypad or PC based software and multiple units can be cloned with the use of a memory card enabling high speed configuration. The PC based software can also be used to monitor several Temperature Controllers.

4-20mA, 0-20mA
0-10V, 0-40mV
4-20mA, 0-20mA
2 Relays
Modbus RS485

Power Supply Voltage
24 to 230 Vac Vdc
Front panel Keyboard
PC Configurable.
Memory Card.
For Industrial environments
Immunity EN 61000-6-2
Emission EN 6100-6-4
Material self-extinguishing
Dimensions W x H x T
1 7/8 " x 1 7/8 " x 4 1/4"
48 x 48 x 90 mm
Weight 6 oz 195 g
Operating Temperature 32°F +113°F 0°C +45°C
Humidity (non condensing) 35-95%



Input °F °C
K Type Thermocouple -436 to 2480°F -260 to 1360°C
S Type Thermocouple -40 to 3200°F -20 to 1760°C
R Type Thermocouple -40 to 3200°F -20 to 1760°C
J Type Thermocouple -328 to 2192°F -200 to 1200°C
RTD PT100 -328 to 1112°F -200 to 600°C
RTD PT500 -328 to 284°F -200 to 140°C
NI 100 -76 to 356°F -60 to 180°C
NTC 10K Ohm Thermistor -40 to 257°F -40 to 125°C
PTC 1K Ohm Thermistor -40 to 302°F -40 to 150°C
PT500 -148 to 1112°F -100 to 600°C
PT1000 -148 to 1112°F -100 to 600°C
Output: 1 X Relays 5 A. SSR.
Power Supply: 24 to 240Vac/Vdc.
Power Consumption: 4VA max.
Temperature rating: Operative- 32°F +113°F -0°C +45°C
Humidity: (non condensing) 35-95%.
Housing: Polycarbonate UL94V2 self-extinguishing
Dimensions: 1 7/8 " x 1 7/8 " x 4 1/4", 48 x 48 x 108 mm.
Weight: 3 oz 100 g.
EMC. For industrial environments.
  Immunity: EN 61000-6-2.
  Emission: EN 61000-6-4.
Configuration: PC Configurable, Memory Card


Power supply DRR245-21ABC-T
Positive Terminal 23
Negative Terminal 24
Current and Voltage
Positive Terminal 12
Negative Terminal 11
Relay 1
Normally Closed Terminal 1
Common Terminal 2
Normally Open Terminal 3
Relay 2
Normally Closed Terminal 6
Common Terminal 5
Normally Open Terminal 4
Modbus RS485 Negative 20
Positive 21
SSR Output Negative 11
Positive 12
Sensor Input
Thermocouples Positive 13
Positive 14
Thermistor Terminal 14
Terminal 15
Potentiometer Terminal 14
Terminal 35
Digital Input
Terminal 16
Terminal 17
Current Transformer
Terminal 18
Terminal 19



  • DIN Rail Mounted Temperature Control.
Back to General Description Din Rail Mounted Temperature Controller DRR245.