Libratherm Instruments Private Limited
Libratherm Instruments Private Limited
Dahisar East, Mumbai, Maharashtra
GST No. 27AABCL1732A1Z5
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Three Phase Thyristor Power Controllers

Phase Angle Controllers

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

Three Phase Thyristor Power Controller POW-12-PA-CL
  • Three Phase Thyristor Power Controller POW-12-PA-CL
  • Three Phase Thyristor Power Controller POW-12-PA-CL
  • Three Phase Thyristor Power Controller POW-12-PA-CL
  • Three Phase Thyristor Power Controller POW-12-PA-CL
Get Best Quote
Approx. Price: Rs 19,425 / PieceGet Latest Price
Product Brochure

Product Details:

BrandLibratherm
Part NumberPOW-12-PA-CL (Part No.: 2501)
Country of OriginMade in India
Available Load ConfigurationsThree phase (3 or 4 wire star and 3 or 6 wire delta).
Control ActionLinear and Proportional using Phase angle control technique (self-synchronized).
Control Signal(4-20) mA / (0-5) VDC / (0-10) VDC / Potentiometer (user selectable).
Load Type / CurrentSuitable for Resistive/Inductive load (10A to 35A @ 110/230/415 VAC).

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. 
Technical Specification

ParametersDescription
Available Load ConfigurationsThree phase (3 or 4 wire star and 3 or 6 wire delta).
Control ActionLinear 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 controlUsing external potential-free relay contacts to enable or disable the Thyristor or voltage output to the load.
Voltage Output0 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 ControlAdjustable 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).
SettingsMax / Min output voltage settings for each phase.
Load Type / CurrentSuitable for Resistive/Inductive load (10A to 35A @ 110/230/415 VAC).
Current ControlBuilt-in current limit and overload trip features.
Aux. Supply Voltage230VAC +/- 10%, 50/60 Hz.
Load Supply Voltage40 to 440VAC -3 phase through mains or through a step-down transformer.
TerminationHeavy-duty terminals for 2.5 to 6.0 sq.mm cable.
Dimensions / Weight255 x 170 x 85 / Approx. 3 Kg.
MountingThe regulator can be mounted on the base plate of the control panel using 4 x M6 bolts
PrecautionsUsers must ensure proper Air circulation inside the mounting panel using external FAN.

Ordering Information

ModelProduct DescriptionSize (H x W x D) mm.Part No.
POW-12-PA-CL-10AThree-phase thyristor power regulator - suitable for max. 6KW/10A@ 415/440VAC with current control and overload protection255 x 170 x 852501
POW-12-PA-CL-20AThree-phase thyristor power regulator - suitable for max. 12KW/20A@ 415/440VAC with current control and overload protection255 x 170 x 852502
POW-12-PA-CL-25AThree phase thyristor power regulator - suitable for max. 18KW/30A@ 415/440VAC with current control and over load protection255 x 170 x 852503
POW-12-PA-CL-30AThree phase thyristor power regulator - suitable for max. 21KW/30A@ 415/440VAC with current control and over load protection255 x 170 x 852504
POW-12-PA-CL-35AThree phase thyristor power regulator - suitable for max. 24KW/35A@ 415/440VAC with current control and over load protection255 x 170 x 852505
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Three Phase Thyristor Power Controller POW-3-PA-CL

Three Phase Thyristor Power Controller POW-3-PA-CL
  • Three Phase Thyristor Power Controller POW-3-PA-CL
  • Three Phase Thyristor Power Controller POW-3-PA-CL
  • Three Phase Thyristor Power Controller POW-3-PA-CL
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Approx. Price: Rs 24,675 / PieceGet Latest Price
Product Brochure

Product Details:

Usage/ApplicationIndustrial
BrandLibratherm
Part NumberPOW-3-PA-CL (Part No.: 2603-1)
Input Signal(4-20)mA / (0-5)VDC / (0-10)VDC / Potentiometer - user selectable.
Country of OriginMade in India
Available Ratings36KW/50A to 360KW/500A

POW-3-PA-CL – Three Phase SCR Power Regulator for Three Phase Heater connected in 3 or 4 Wire Star or 3 Wire Close or Open Delta Configurations with Current Control/Current Limit and Over Load Protection.

Key Features:
  • Digital Firing Cards for single-phase/two phase/three phase are Field-proven for 25+ years.
  • Semikron make SCR Modules – SKKT Series are used for AC to AC control and SKKT / SKKH Series are used for AC to DC control.
  • Auto-detection of phase sequence and auto-synchronization.
  • Heatsinks are mounted with thermistors to protect against overheating and auto cut-off of firing in case of over temperature.
  • Built-in Current Limit and Overcurrent Trip facility to limit the desired current through heaters. This feature saves on the cost of using external safety fuses.
  • Soft start and Soft stop voltage across the load.
  • Separate auxiliary supply of 230 VAC with built-in RFI/EMI filter – Thereby electronics are safe against line voltage fluctuations and RFI/EMI electrical noise.
  • SCR Modules are protected by suitable RC snubber and surge suppressors.
  • High-speed ball bearing type cooling fan – To keep Thyristor cool.
  • Built-in safety fuse for the cooling fan and Auxiliary supply.
  • Current control feature avoids the need for external Fuse in series with the load.
  • Rugged metal enclosure & modular design – easy to install & easy to maintain.
Ordering Information

MEDIUM AND HIGH RATINGS THREE PHASE THYRISTORS (3 OR 4 WIRE STAR / 3 WIRE CLOSE DELTA 6 WIRE OPEN DELTA CONFIGURATION) (36KW TO 360KW)
ModelProduct DescriptionSize
(H x W x D) mm
Part. No.
POW-3-PA-CL-35 (24KW)Three-phase thyristor power regulator - suitable for max. 24KW/35A @
415/440VAC with current control and overload protection (PANEL MOUNT)
305 x 185 x 2202603-1
POW-3-PA-CL-50 (36KW)Three-phase thyristor power regulator - suitable for max. 36KW/50A
@ 415/440VAC with current control and overload protection (PANEL MOUNT)
305 x 185 x 2202603-2
POW-3-PA-CL-100 (68KW)Three-phase thyristor power regulator - suitable for max. 68KW/95A
@ 415/440VAC with current control and overload protection (PANEL MOUNT)
325 x 185 x 2452603-3
POW-3-PA-CL-150 (104KW)Three-phase thyristor power regulator - suitable for max. 104KW/145A
@ 415/440VAC with current control and overload protection (PANEL MOUNT)
345 x 185 x 2852603-4
POW-3-PA-CL-200 (144KW)Three-phase thyristor power regulator - suitable for max. 144KW/200A
@ 415/440VAC with current control and overload protection (PANEL MOUNT)
425 x 285 x 3002603-5
POW-3-PA-CL-250 (178KW)Three-phase thyristor power regulator - suitable for max. 178KW/250A
@ 415/440VAC with current control and overload protection (PANEL MOUNT)
425 x 285 x 3002603-6
POW-3-PA-CL-300 (215KW)Three-phase thyristor power regulator - suitable for max. 215KW /300A
@ 415/440VAC with current control and overload protection (PANEL MOUNT)
450 x 350 x 3502603-7
POW-3-PA-CL-400 (287KW)Three-phase thyristor power regulator - suitable for max. 287KW/400A
@ 415/440VAC with current control and overload protection (PANEL MOUNT)
450 x 350 x 3502603-8
POW-3-PA-CL-500 (360KW)Three-phase thyristor power regulator - suitable for max. 360KW/500A
@ 415/440VAC with current control and overload protection (PANEL MOUNT)
625 x 350 x 3502603-9
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SCR Power Regulator

SCR Power Regulator
  • SCR Power Regulator
  • SCR Power Regulator
  • SCR Power Regulator
  • SCR Power Regulator
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Approx. Price: Rs 10,000 / UnitGet Latest Price

Product Details:

Minimum Order Quantity1 Unit
TypeAutomatic
PhaseSingle Phase
Power Load3 Kw to 300 KW
Size115 x 80 x 90 mm
Control Input0-5V, 0-10V, 4-20mA (DIP switch selectable)
Mounting35 mm. DIN rail.

Single Phase SCR Power Regulator/ Controller for single phase heaters.

Libratherm offers ready to use SCR power controller for electrical heating loads ranging from 3 KW/Single phase to 300KW/3-phase. This power pack module comprises of suitable triggering card model LTC-12 or LTC-13 or LTC-15, suitably rated back to back connected SCR module (with electrically isolated base)- mounted on the appropriately rated heat sink (natural air or forced air cool), input and output clip-on type heavy duty connectors or copper bus bars, semiconductor fuses and thermal cutouts. The entire assembly is mounted on MS powder coated plate, which in turn can be easily mounted inside the closed control panel as desired. Complete ready to use control panel with suitable PID / Program temperature controller can also be supplied as per the user’s specifications and requirement.
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Additional Information:

  • Item Code: POW-1
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Thyristor Power Regulator

Thyristor Power Regulator
  • Thyristor Power Regulator
  • Thyristor Power Regulator
  • Thyristor Power Regulator
  • Thyristor Power Regulator
  • Thyristor Power Regulator
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Approx. Price: Rs 10,000 / UnitGet Latest Price

Product Details:

Minimum Order Quantity1 Unit
Input Voltage(0-5)VDC / (0-10)VDC
TypeAutomatic, Semi-automatic, Manual
PhaseThree Phase
Output Voltage0 to 230VAC or 0 to 415VAC
Power3 KW- 300KW

Libratherm offers ready to use SCR power controller for electrical heating loads. This power pack module comprises of suitable triggering card model LTC-12 or LTC-13 or LTC-15, suitably rated back to back connected SCR module (with electrically isolated base)- mounted on the appropriately rated heat sink (natural air or forced air cool), input and output clip-on type heavy duty connectors or copper bus bars, semiconductor fuses and thermal cutouts. The entire assembly is mounted on MS powder coated plate, which in turn can be easily mounted inside the closed control panel as desired. Complete ready to use control panel with suitable PID / Program temperature controller can also be supplied as per the user’s specifications and requirement.
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Additional Information:

  • Item Code: POW-1-CL
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Reviews & Rating

3.9/5

★★★★★★★★★★

Reviewed by 22 Users

  • 5★41%
  • 4★27%
  • 3★5%
  • 2★9%
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  • User Satisfaction
  • Response100%
  • Quality     100%
  • Delivery   66%

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Response from Seller (14-December-21)

Thank you

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11-October-21
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Response from Seller (07-December-21)

Thank you very much for your feedback. We look forward for long term buiseness association with J J Technologies




Reach Us
Kamlesh Panchal (Managing Director)
Libratherm Instruments Private Limited
No. 401-403, Diamond Industrial Estate, Ketki Pada Road
Dahisar East, Mumbai - 400068, Maharashtra, India


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