Three Phase Thyristor Power Controller – POW-12-PA-CL

Name: Three Phase Thyristor Power Controller - POW-12-PA-CL
SKU: 5415
Availability: InStock

₹19,425 – ₹21,525

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.

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SKU: N/A Categories: Phase Angle Controllers, Three Phase Thyristor Power Controllers, Thyristor Power Controllers

Description
Technical Specification
Ordering Information

Libratherm offers ready to use compact Three Phase SCR Power Regulator for electrical heating loads ranging from 6 KW to 15KW @ 380/415/440VAC 3-phase supply. This Phase Angle Controlled Thyristor Power Pack Module comprises of SCR Triggering Card model LTC-18, 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, a 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 Thyristor Power Controller 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.

Key Features:

Suitable for 3 phase resistive heater load in all above load configurations.
Auto / Manual Operation.
Accepts (4-20)mA / (0-5)VDC / (0-10)VDC control input from external controller.
Soft increase/decrease for smooth control.
Gradual and linear variation of 3 phase voltage proportional to control input.
Adjustable power limit.
Current limit and overload trip protection.
Simple and Modular design for easy installation and operation.

Application:

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 and accurate temperature/power control is required. There is a significant power saving when compared to the 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.

Technical Specification

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 60 seconds).
Settings	Max / Min output voltage settings for each phase.
Load Type / Current	Suitable only for Resistive load (10A to 30A @ 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 - 200 (H) x 155 (W) center to center holes.
Precautions	Users must ensure proper Air circulation inside the mounting panel using external FAN.

Ordering Information

Model	Product Description	Max. KW / Amps @ 380 - 440VAC	Part No.
POW-12-PA-3-10A	Three Phase SCR Power Regulator – suitable for 3 phase heaters connected in Star or Delta configuration.	Max. 6 KW / 10A @ 415VAC	2501
POW-12-PA-3-20A	Three Phase SCR Power Regulator – suitable for 3 phase heaters connected in Star or Delta configuration.	Max. 12 KW / 20A @ 415VAC	2502
POW-12-PA-3-30A	Three Phase SCR Power Regulator – suitable for 3 phase heaters connected in Star or Delta configuration.	Max.18KW/ 30A @ 415 VAC	2503