₹19,425 – ₹23,625
Prices are inclusive of Delivery Charges.
POW-12-PA-CL – Three Phase SCR Power Regulator suitable for Three Phase Heaters connected in Star or Delta Configuration.
Libratherm offers ready to use compact 3 phase SCR power regulator for electrical heating loads ranging from 6 KW to 24KW @ 380/415/440VAC 3-phase supply. This power pack module comprises of SCR triggering card, rightly rated back to back connected SCRs (with electrically isolated base)- mounted on the Aluminum heat sink. SCR devices are protected by suitable RC-snubbers. Heavy-duty Terminal connectors are provided for 3 phase AC supply, control signal, and heater cables. The entire assembly is mounted on an aluminum Heat sink and enclosed with MS powder-coated enclosure, which in turn can be easily fixed inside the closed control panel as desired. Potentiometric settings are accessible to the user for on-site calibrations, max/min voltage output and ramp up / ramp down time adjustments, and for current limit and overload settings. This model accepts the control signal from external DDC, PID, or PLC controller in the form of (0-5)V, (0-10)V, or (4-20)mA, user selectable through DIP switch settings.
Thyristor-based Power Regulator has a varied application and can be used with heating elements like Nichrome, Tungsten, Kanthal, Infra-Red, Ceramic, etc. where precise, accurate, and continuously variable temperature/power control is required. There is a significant power saving when compared to conventional contactor type power/temperature control system, which also depends on various other factors. It can be used for small laboratory ovens, furnaces, Air heaters, etc…. Thyristor-based controls are recommended for smooth and steady-state control, which enhances the heater life and thereby reduces the maintenance cost.
Parameters | Description |
---|---|
Available Load Configurations | Three phase (3 or 4 wire star and 3 or 6 wire delta). |
Control Action | Linear and Proportional using Phase angle control technique (self-synchronized). |
Control Signal | (4-20) mA / (0-5) VDC / (0-10) VDC / Potentiometer (user selectable). |
Remote On/Off control | Using external potential-free relay contacts to enable or disable the Thyristor or voltage output to the load. |
Voltage Output | 0 to 230VAC (for star connected loads ) or 0 to 415VAC (for delta connected loads) the variable voltage across the heater load, proportional to the control signal. |
Smooth Control | Adjustable Ramp Up and Ramp Down Time for the soft increase and decrease of the output voltage. (Settable in the range of 2 to 20 seconds). |
Settings | Max / Min output voltage settings for each phase. |
Load Type / Current | Suitable for Resistive/Inductive load (10A to 35A @ 110/230/415 VAC). |
Current Control | Built-in current limit and overload trip features. |
Aux. Supply Voltage | 230VAC +/- 10%, 50/60 Hz. |
Load Supply Voltage | 40 to 440VAC -3 phase through mains or through a step-down transformer. |
Termination | Heavy-duty terminals for 2.5 to 6.0 sq.mm cable. |
Dimensions / Weight | 255 x 170 x 85 / Approx. 3 Kg. |
Mounting | The regulator can be mounted on the base plate of the control panel using 4 x M6 bolts |
Precautions | Users must ensure proper Air circulation inside the mounting panel using external FAN. |
Model | Product Description | Size (H x W x D) mm. | Part No. |
---|---|---|---|
POW-12-PA-CL-10A | Three-phase thyristor power regulator - suitable for max. 6KW/10A@ 415/440VAC with current control and overload protection | 255 x 170 x 85 | 2501 |
POW-12-PA-CL-20A | Three-phase thyristor power regulator - suitable for max. 12KW/20A@ 415/440VAC with current control and overload protection | 255 x 170 x 85 | 2502 |
POW-12-PA-CL-25A | Three phase thyristor power regulator - suitable for max. 18KW/30A@ 415/440VAC with current control and over load protection | 255 x 170 x 85 | 2503 |
POW-12-PA-CL-30A | Three phase thyristor power regulator - suitable for max. 21KW/30A@ 415/440VAC with current control and over load protection | 255 x 170 x 85 | 2504 |
POW-12-PA-CL-35A | Three phase thyristor power regulator - suitable for max. 24KW/35A@ 415/440VAC with current control and over load protection | 255 x 170 x 85 | 2505 |