Three Phase Thyristor Power Controller – POW-12-PA-CL
₹16,800 – ₹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.
Thyristor-based Power Regulator has varied applications and is commended for smooth and steady-state control. It 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. Compared to conventional contactor-based temperature/power control systems, there is a significant advantages of a Thyristor-based control system, such as consistent heating, enhanced heater life, power saving, accurate control and reduced maintenance cost. The POW-12 can be used for small laboratory ovens, furnaces, Air heaters, etc….
Libratherm offers a ready-to-use compact 3-phase power regulator for electrical heating loads ranging from 6 KW to 27KW @ 380/415/440VAC 3 phase supply. This power pack module comprises SCR- triggering card, a rightly rated back-to-back connected SCRs (with electrically isolated base)- mounted on the Aluminum heat sink. Suitable RC snubbers are provided to protect SCR devices.
Heavy-duty Terminal connectors are provided for the 3-phase AC supply, the Heater wires at one end, and control signals at another. The complete assembly is mounted on an aluminium heat sink and enclosed with an MS powder-coated enclosure, which can be easily fixed inside the closed control panel. Potentiometric settings are accessible for on-site calibrations, max/min voltage output and ramp up / ramp down time adjustments, and current limit and overload settings. This model accepts the control signal from an 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.
Libratherm offers a ready-to-use control panel comprising PID or Ramp/Soak temperature controller, 3 phase Thyristor of required ratings and heavy-duty switch gears. Such control panels are used for AHU control, Furnace control, Hot Air dryers, Electrical Boilers, etc…
- Self-synchronized six-pulse SCR firing card
- Semikron – Germany brand 3 phase SCR device.
- 1 x AI, 1 x AO, 1 x DI, 2 x DO
- User selectable control signal (4-20)mA/(0-5)VDC/(0-10)VDC/Potentiometer(1 x AI)
- Auto-detection of phase sequence and auto-synchronization
- Built-in cooling fan for 21KW to 27KW models.
- Heatsinks are mounted with thermistors – protection against over-heating
- Facility to start/stop thyristor using external potential free contact (1 x DI)
- Front Panel LEDs indicate the status of over current, over temperature, phase reversal etc…
- Built-in Current Control and Overcurrent Trip facility to limit the desired current through heaters
- Retransmission of 4-20mA or 0-10V proportional to the load current (1 x AO)
- Trip Contact Relay and Healthy Relay Contacts (2 x DO)
- Gradual Soft increases and decreases of voltage across the load, unlike the ON-OFF type.
- Separate auxiliary supply of 230VAC, 50/60Hz
- SCR devices are protected by RC snubbers and surge suppressors
- Current control feature avoids needing an external Fuse in series with the load.
- Rugged metal enclosure & modular design – easy to install & easy to maintain.
- Libratherm Thyristor power regulators are time-tested & field-proven in all major industries.
- More than 2000 installations have taken place across India & abroad and the number is growing rapidly.
- CE Certified
- Furnace/Oven control
- AHU and De-Humidifier
- Hot Air Generator
- Industrial Heating control
|Available Load Configurations||Three-phase (3 or 4 wire star and 3 or 6 wire delta – as shown above)|
|Control Action||Linear and Proportional using Phase angle control technique (self-synchronized).|
|Control Signal (AI)||(4-20) mA / (0-5) VDC / (0-10) VDC / Potentiometer (user selectable).|
|Retransmission (AO)||4-20mA or 0-10V proportional to the heater load current (Optional)|
|Using external potential-free relay contacts to enable or disable the Thyristor or voltage output to the load.|
|Relay O/Ps (DOx2)||Relay contacts (C-NO) provided when Thyristor power is ON and it is Enabled. Relay contact (C-NO) provided when overload condition occurs.|
|Front Panel LED|
|For Power ON, Phase Sequence OK, Enable/Disable mode, Healthy Relay, Over Load, Over Heat and Current Limit mode|
|Voltage Output||0 to 230VAC (for star-connected loads) or 0 to 415/440VAC (for delta-connected loads) variable voltage across the heater/transformer load, proportional to the input control signal.|
|Smooth Control||Adjustable Ramp Up and Ramp Down Time for the soft increase and decrease of output voltage. (Settable in the range of 2 to 20 seconds)|
|Load Type / Current||Suitable for Resistive/Inductive load (10A to 40A @ 110/230/415 VAC).|
|Settings||A current Limit potentiometer is accessible to the user in the front.|
|Current Control||Built-in current limit and overload trip features. Trip Reset switch is provided for easy access to the user.|
|Aux. Supply Voltage||230VAC +/- 10%, 50/60 Hz. (110VAC +/-10%, 50/60 Hz. – optional)|
|Load Supply Voltage||40 to 440VAC -3 phase from mains power or a step-down transformer.|
|Termination||Heavy-duty terminals for 2.5 to 6.0 sq. mm cable.|
|Dimensions / Weight||As given in the above table 1 / Approx. 3 Kg.|
|Mounting||POW-12 can be mounted on the base plate inside the control panel using 4 x M6 bolts.|
|Precautions||The user must ensure proper Air circulation inside the mounting panel using the external exhaust FANs and dust Filters.|
|CE Certification||Low Voltage Directives - 2014/35/EU and EMC Directives – 2014/30/EU|
|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 150 x 85||2501|
|POW-12-PA-CL-15A||Three-phase thyristor power regulator - suitable for max. 12KW/15A @ 415/440VAC with current control and overload protection.||255 x 150 x 85||2502|
|POW-12-PA-CL-20A||Three-phase thyristor power regulator - suitable for max. 15KW/20A @ 415/440VAC with current control and overload protection.||255 x 150 x 85||2503|
|POW-12-PA-CL-25A||Three-phase thyristor power regulator - suitable for max. 18KW/25A @ 415/440VAC with current control and overload protection.||255 x 150 x 85||2504|
|POW-12-PA-CL-30A||Three-phase thyristor power regulator - suitable for max. 21KW/30A @ 415/440VAC with current control and overload protection.||255 x 150 x 135||2505|
|POW-12-PA-CL-35A||Three-phase thyristor power regulator - suitable for max. 24KW/35A @ 415/440VAC with current control and overload protection.||255 x 150 x 135||2506|
|POW-12-PA-CL-40A||Three-phase thyristor power regulator - suitable for|
max. 27KW/40A @ 415/440VAC with current
control and overload protection.
|255 x 150 x 135||2507|
₹6,300 – ₹10,500
₹28,875 – ₹168,525