Proton Power controls

2,3,4,5,6 AC Controller MTNL (Voltage & Current Protection)

AC Controllers For MTNL Two, Air Conditioner Controllers, Manufacturer, Supplier, Exporter, Proton Power Control, Pune, Maharashtra, India

2ac-controller-mtnl
2ac-controller-mtnl
MICROCONTROLLERS with their inherent advantages are being increasingly used in the industry. With growing shortage and escalating cost of Electrical Energy, accurate monitoring of Air Conditioning parameters has become necessary.6A/C CONTROLLER is most useful for controlling A/Cs. This instrument is able to maintain Room Temperature with an accuracy of 0.1° C by automatic measurement of Room temperature and accordingly controlling A/C ON/OFF. It also protects Costly Air conditioner from ‘Unhealthy conditions’ such as over load/under load etc. by automatically cutting off the supply.


  • Input Voltage : 3 Phase 415 V, 50Hz (R, Y, B, N) to MCB.
  • Supply Voltage : 230 V AC, 50 Hz ± 15% separate for each A/C.
  • Contact Rating : 7A at 230 V AC for Compressor Live Outputs to Contactor coil & 10 A at 250 V AC for Alarm Potential Free Outputs(C, N/O).
  • Temperature Sensor : 40Amp single pole contactor for each A/C (230VAC) for ALARM contact.
  • Temperature Sensing Range : 0.0°C to 55.0 °C
  • Resolution: 1V for Voltage, 0.1 A for Current & 0.1°C for temperature.
  • Indications :
    1] Supply ON for A/C1 & A/C2, A/C3, A/C4, A/C5, A/C6. Colour: Green
    2] Underload / Overload Fault: Colour: Red
    3] Sensor Fail fault Colour: Red
    4] Room High fault Colour: Red
    5] Fire alarm Colour: Red
    6] Healthy Colour: Green
    7] Keys: 4 key keypad for settings.
    1] SET Key: To enter into FUNCTION SET Mode/To view the next set pt.
    2] Up Arrow Key: To increment the set point
    3] Down Arrow Key: To decrement the set point.
    4] ENTER Key: To come out of FUNCTION SET mode/To enter into menu/To accept the password
  • Mounting: Wall mounting
  • Sensing :
    1. Inbuilt current sensing for compressor.
    2. Temperature Sensing by precise Temp. Sensor.
    3. Fire Alarm sensing.
  • Terminals:
    1. Separate O/P s for each Compressor.
    2. Temperature sensor.
    3. Alarm relay o/p.
  • Alarms/ Protections:
    1. Over load protection set point user settable.
    2. Under load protection set point user settable.
    3. High/low temperature alarm set point user settable.
  • RUN MODE PARAMETERS :
    1. Room Temperature
    2. CP1, CP2 CP3 CP4 CP5 CP6 Amp.
    3. Fault message if any
  • FAULTS/PROTECTION :
    1. Primary Fault related to protections of, A/C1, A/C2, A/C3, A/C4, A/C5, A/C6 Under load (UL) & Room Low.
    2. Secondary Fault related to protections of, A/C1, A/C2, A/C3, A/C4, A/C5, A/C6:- Overload (OL).
    3. Room Temperature High
    4. Room sensor fail / Room High protection.
    5. Fire Alarm Protection.
    6. MCB is used for Short circuit protection.
  • Fully programmable.
  • Complete protection for A/C from unhealthy condition.
  • All set points programmable from keypad.
  • Password protection for controller.
  • Four key interface for on site programming.
  • Separate alarm contacts for A/C fail alarm.
  • Automatic display of A/C parameters one by one in Run Mode.
  • Status, Healthy & Alarm indication by LED on front panel.
  • Room temperature sensing by precise sensor.
  • Direct display of actual current drawn by each compressor.
  • Direct display of actual room temperature.
  • Sequencing of comp. for equal run hours, site selectable.
  • Automatic Timer mode operation if Room sensor fails.
  • All Faults are Auto resettable.