TWO-STAGE CONTROLLER MT-518R. DESCRIPTION MT 518 CONTROLS AND INDICATES TEMPERATURE BEING EQUIPPED WITH A SENSOR AND TWO OUTPUTS, WHICH ALLOW EITHER THE ACTIVATION OF REFRIGERATION, HEATING OR BOTH ACCORDING TO CONFIGURATION. APPLICATIONS:- IN REFRIGERATION IT CONTROLS TWO STAGES. IN AIR CONDITIONING IT CAN WORK IN THE AUTOMATIC WINTER/SUMMER SYSTEM WITH NEUTRAL ZONE.- IN A THIRD APPLICATION, IT CONTROLS TEMPERATURE IN THE 1ST STAGE AND HAS THE 2ND STAGE CONFIGURABLE FOR ALARM (INSIDE OR OUTSIDE THE RANGE).TECHNICAL SPECIFICATIONS- DIRECT POWER SUPPLY, WITH INTERNAL TRANSFORMER: 220 VAC. OTHER AVAILABLE UNDER SPECIFICATION: 110 VAC OR 12 VDC/VAC – 24 VDC/VAC- CONTROL TEMPERATURE: -50 TO 105ºC (DECIMAL RESOLUTION BETWEEN -10 AND 100°C)- MAXIMUM CURRENT PER OUTPUT: 5 AMPS (RESISTIVE LOAD)- DIMENSIONS: MT-518R: 70 X 28 X 60 MM- OPERATING TEMPERATURE: 0º TO 60 ºC- OPERATING HUMIDITY: 10 TO 90% RH (NON-CONDENSING)