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iSMA – RAC18-IP Room Application Controller

The RAC18-IP is a multifunctional device providing comfort in a single room or a zone in the building. 18 onboard I/O’s with Ethernet and serial port make the controller a versatile system for comfort management, light and blind control, and integration and monitoring. The RAC18-IP controller has a built-in nano EDGE ENGINE – the cutting-edge software that allows for constructing multiple applications and provides a set of libraries and components tailored to create cycle-driven user applications. This solution provides an automatic BACnet exposure and real-time programming.
Maintenance and programming of the device are possible from anywhere in real time with a dedicated, free-of-charge tool.
The RAC18-IP ensures an easy replacement process with a system and applications on a removable SD card.

£362.50 (£435.00 incl. VAT)

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• Room and zone IP management
• Openness and reliability
• Seamless programming and maintenance
• Built-in nano EDGE ENGINE
• Cycle-driven multithreaded application
• Favorable licensing system
• Reference linking method
• Clear and logical structure
• 150 Data Points
• System and applications on SD card
• 2 fail-safe Ethernet ports with a built-in switch
• Native BACnet IP
• Modbus RTU
• Built-in real-time clock (RTC)
• Support for over 20 types of temperature sensors
• Digital inputs with fast pulse counter
• Triac outputs for thermal actuators


RAC18-IP – Datasheet V1.0
RAC18-IP – Installation Instruction v1.0
RAC18-IP – Hardware Manual V1.0


Power supplyDC: 24 V ± 20%, 10 W; AC: 24 V ± 20%, 23 VA
Voutmax. 5W, max. 40 V DC – depends on the input supply voltage

23 V DC for 24 V DC input supply voltage

33 V DC for 24 V AC input supply voltage

Universal inputs4x voltage, current, resistance, temperature measurement, dry contact inputs
Digital inputs4x dry contact inputs, high-speed pulse counter up to 100 Hz
Digital outputs5x relay output;

Resistive load max. 3 A @ 230 V AC, 3 A @ 30 V DC

Inductive load max. 75 VA @ 230 V AC, 30 W @ 30 V DC

Analog outputs3x 0-10 V DC output, maximum load up to 20 mA per channel
Triac outputs2x 0,5 A; maximum voltage up to 230 V AC
Interfaces2x Port 10/100 Ethernet Switch with failsafe protection; RS485; USB type C
Ingress protectionIP20 – for indoor installation
TemperatureOperating: 0°C to +50°C (32°F to 122°F) Storage -40°C to +85°C (-40°F to +185°F)
Relative humidity5 to 95% RH (without condensation)
ConnectorsRS485 connector: Separable, screwless max 1.5 mm2 (24 … 16 AWG) + RJ45 Other connectors: Separable max 2.5 mm2 (18 … 12 AWG)
Dimensions123,5 x 137 x 55 mm (4.86 x 5.39 x 2.16 in)
MountingDIN rail mounting (DIN EN 50022 norm)
Housing materialPlastic, self-extinguishing PC/ABS

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