Libratherm Instruments Private Limited
Libratherm Instruments Private Limited
Dahisar East, Mumbai, Maharashtra
SEND SMS
SEND EMAIL

Thyristor Power Switch Zero Cross Over Control

Thyristor power switch (one/two/three phase) - zero cross (zc) over controlled (solid state contractor)

Single Phase Zero Cross Over SCR Power Regulator POW-1-ZC

Single Phase Zero Cross Over SCR Power Regulator POW-1-ZC
  • Single Phase Zero Cross Over SCR Power Regulator POW-1-ZC
  • Single Phase Zero Cross Over SCR Power Regulator POW-1-ZC
  • Single Phase Zero Cross Over SCR Power Regulator POW-1-ZC
Get Best Quote
Approx. Price: Rs 4,500 / UnitGet Latest Price

Product Details:

Load TypeSuitable for resistive and inductive / transformer load
Available Ratings2KW to 8KW @ 230VAC, single phase.
On or Off Duty cycle2 to 20 seconds (user adjustable) using on card potentiometer.
Voltage Output0 to 230VAC variable on/off duty cycle proportional to the control signal.
PhaseSingle Phase
SizeAs per the Thyristor selection table given Model Wise Descriptions.
Control ActionZero cross over Burst firing, time proportional with variable duty cycle. (Pulse width modulated)
Max Current Load10A @ 2KW, 20A @ 4KW, 30A @ 6KW and 40A @ 8KW
Control Signal(4-20) mA / (0-5) VDC / (0-10) VDC / Potentiometer or 5-24VDC pulse.
Available ConfigurationSingle phase with respect to neutral
MountingOn Base plate of the control panel
Supply Voltage230VAC +/- 10%, 50/60 Hz.
TypeManual, Automatic, Semi-automatic
BrandLIBRATHERM

Model Wise Descriptions:

ModelProductSIZE (HxWxD)
POW-1-ZCLOW RATINGS SINGLE PHASE THYRISTOR
POW-1-ZC-10A (2KW)Single phase Zero Cross over PWM based thyristor power regulator - suitable for max. 2KW /10A @ 240VAC (PANEL MOUNT)190 X 110 X 100
POW-1-ZC-20A (4KW)Single phase Zero Cross over PWM based thyristor power regulator - suitable for max. 4KW /20A @ 240VAC (PANEL MOUNT)190 X 110 X 100
POW-1-ZC-30A (6KW)Single phase Zero Cross over PWM based thyristor power regulator - suitable for max. 6KW/30A @ 240VAC (PANEL MOUNT)190 X 120 X 115
POW-1-ZC-40A (8KW)Single phase Zero Cross over PWM based thyristor power regulator - suitable for max. 8KW /40A @ 240VAC (PANEL MOUNT)190 X 130 X 115

ONE/TWO PHASE THYRISTORS ( 5 to 190KW) # 4 - 5
POW-1-ZCMEDIUM AND HIGH RATINGS SINGLE PHASE THYRISTORS (5KW TO 110KW)
POW-1-ZC-25A (5KW)Single phase Zero Cross over PWM based thyristor power regulator - suitable for max. 5KW @ 240VAC (PANEL MOUNT)215 x 133 x 210
POW-1-ZC-50A (10KW)Single phase Zero Cross over PWM based thyristor power regulator - suitable for max. 10KW @ 240VAC (PANEL MOUNT)215 x 133 x 210
POW-1-ZC-100A (20KW)Single phase Zero Cross over PWM based thyristor power regulator - suitable for max. 20KW @ 240VAC (PANEL MOUNT)215 x 133 x 210
POW-1-ZC-150A (36KW)Single phase Zero Cross over PWM based thyristor power regulator - suitable for max. 36KW @ 240VAC (PANEL MOUNT)325 X 184 X240
POW-1-ZC-250A (60KW)Single phase Zero Cross over PWM based thyristor power regulator - suitable for max. 60KW @ 240VAC (PANEL MOUNT)325 X 184 X240
POW-1-ZC-300A (72KW)Single phase Zero Cross over PWM based thyristor power regulator - suitable for max. 72KW @ 240VAC (PANEL MOUNT)325 X 184 X240
POW-1-ZC-400A (96KW)Single phase Zero Cross over PWM based thyristor power regulator - suitable for max. 96KW @ 240VAC (PANEL MOUNT)385 X200 X240
POW-1-ZC-500A (120KW)Single phase Zero Cross over PWM based thyristor power regulator - suitable for max. 120KW @ 240VAC (PANEL MOUNT)385 X200 X240
Request
Callback


Additional Information:

  • Item Code: POW-1-ZC
  • Pay Mode Terms: T/T (Bank Transfer)
  • Port of Dispatch: Mumbai
Yes! I am interested

Two Phase Zero Cross Over PWM SCR Power Regulator POW-2-ZC

Two Phase Zero Cross Over PWM SCR Power Regulator POW-2-ZC
  • Two Phase Zero Cross Over PWM SCR Power Regulator POW-2-ZC
  • Two Phase Zero Cross Over PWM SCR Power Regulator POW-2-ZC
  • Two Phase Zero Cross Over PWM SCR Power Regulator POW-2-ZC
Get Best Quote
Approx. Price: Rs 6,000 / UnitGet Latest Price

Product Details:

MountingOn Base plate of the control panel
On or Off Duty cycle2 to 20 seconds (user adjustable) using on card potentiometer.
Voltage Outputvariable on/off duty cycle proportional to the control signal.
Control Signal(4-20) mA / (0-5) VDC / (0-10) VDC / Potentiometer or 5-24VDC pulse.
Control ActionZero cross over Burst firing, time proportional with variable duty cycle. (Pulse width modulated)
Available Ratings4KW to 207KW @ 415/440 VAC, two phase.
SizeAs per the Thyristor selection table given Model Wise Descriptions.
Load TypeSuitable for resistive and inductive / transformer load
PhaseThree Phase
Supply Voltage415/440 VAC +/- 10%, 50/60 Hz.
Type Semi-automatic, Manual, Automatic

Model Wise Descriptions:

ModelProductSIZE (HxWxD)
POW-2-ZCLOW RATINGS TWO PHASE THYRISTOR
POW-2-ZC-10A (4KW)Two  phase Zero Cross over PWM based thyristor power regulator - suitable  for max. 4KW /10A @ 415/440 VAC  (PANEL MOUNT)190 X 110 X 100
POW-2-ZC-20A (8KW)Two  phase Zero Cross over PWM based thyristor power regulator - suitable  for max. 8KW/20A @ 415/440 VAC  (PANEL MOUNT)190 X 110 X 100
POW-2-ZC-30A (12KW)Two  phase Zero Cross over PWM based thyristor power regulator - suitable  for max. 12KW/30A@ 415/440 VAC  (PANEL MOUNT)190 X 120 X 115
POW-2-ZC-40A (16KW)Two  phase Zero Cross over PWM based thyristor power regulator - suitable  for max. 16KW/40A  @ 415/440 VAC (PANEL MOUNT)190  X 130  X 115
POW-2-ZCMEDIUM AND HIGH RATINGS  TWO PHASE THYRISTORS (10KW TO  207KW)
POW-2-ZC-25A (10KW) Two phase Zero Cross over PWM based thyristor power regulator  - suitable  for max. 10KW @ 415VAC (PANEL MOUNT)215 x 133 x 210
POW-2-ZC-50A (21KW) Two phase Zero Cross over PWM based thyristor power regulator  - suitable  for max. 21KW @ 415VAC   (PANEL MOUNT)215 x 133 x 210
POW-2-ZC-100A (42KW) Two phase Zero Cross over PWM based thyristor power regulator  - suitable  for max. 42KW @ 415VAC  (PANEL MOUNT)215 x 133 x 210
POW-2-ZC-150A (62KW) Two phase Zero Cross over PWM based thyristor power regulator  - suitable  for max. 62KW @ 415VAC  (PANEL MOUNT)325 X 184 X240
POW-2-ZC-250A (103KW) Two phase Zero Cross over PWM based thyristor power regulator  - suitable  for max. 103KW @ 415VAC (PANEL MOUNT)325 X 184 X240
POW-2-ZC-300A (124KW) Two phase Zero Cross over PWM based thyristor power regulator  - suitable  for max. 124KW @ 415VAC (PANEL MOUNT)325 X 184 X240
POW-2-ZC-400A (166KW) Two phase Zero Cross over PWM based thyristor power regulator  - suitable  for max. 166KW @ 415VAC  (PANEL MOUNT)325 X 184 X240
POW-2-ZC-500A (207KW) Two phase Zero Cross over PWM based thyristor power regulator  - suitable  for max. 207KW @ 415VAC   (PANEL MOUNT)325 X 184 X240
Request
Callback


Additional Information:

  • Item Code: POW-2-ZC
  • Pay Mode Terms: T/T (Bank Transfer)
  • Port of Dispatch: Mumbai
Yes! I am interested

3 Phase Zero Cross Over PWM SCR Power Switch POW-3-ZC

3 Phase Zero Cross Over PWM SCR Power Switch POW-3-ZC
  • 3 Phase Zero Cross Over PWM SCR Power Switch POW-3-ZC
  • 3 Phase Zero Cross Over PWM SCR Power Switch POW-3-ZC
  • 3 Phase Zero Cross Over PWM SCR Power Switch POW-3-ZC
  • 3 Phase Zero Cross Over PWM SCR Power Switch POW-3-ZC
Get Best Quote
Approx. Price: Rs 16,500 / UnitGet Latest Price

Product Details:

Available Ratings3KW to 360KW @ 415VAC, 3 phase.
Control Signal(4-20) mA / (0-5) VDC / (0-10) VDC / Potentiometer or 0-12VDC pulse.
On or Off Duty cycle2 to 20 seconds (user adjustable) using on card potentiometer.
Output0 to 230VAC or 0 to 415VAC variable on/off duty cycle proportional to the control signal.
Available ConfigurationThree phase (2 leg and 3 leg control) 3 wire star or delta.
Load TypeSuitable for resistive and inductive / transformer load (25A to 500A @ 230/415 VAC)
Supply Voltage415/440 VAC, 50/60 Hz. (User should specify)
Control ActionZero cross over Burst firing, time proportional with variable duty cycle.
Size Power PackAs per Std. (Sizes can be given on request-based on the model)
Available ModelsAs given in the above table (Under Model wise description)
Type Semi-Automatic, Manual, Automatic, Analog
ModelPOW-3-ZC

Model Wise Descriptions:

ModelProductSIZE (HxWxD)
POW-3-ZCTHREE PHASE THYRISTORS FOR 3 WIRE STAR/CLOSE DELTA CONNECTED LOAD (2 or 3 leg control)
POW-3-ZC-2L-25A (16KW)Three phase Zero Cross over PWM based thyristor power regulator - 2 leg control suitable for max. 16 KW @ 415/440 VAC in star or delta configuration (PANEL MOUNT)250 X 160 X 180
POW-3S-ZC-3L-25A (16KW)Three phase Zero Cross over PWM based thyristor power regulator - 3 leg control suitable for max. 16 KW @ 415/440 VAC in only star configuration (PANEL MOUNT)250 X 160 X 180
POW-3-ZC-2L-50A (33KW)Three phase Zero Cross over PWM based thyristor power regulator - 2 leg control suitable for max. 33 KW @ 415/440 VAC in star or delta configuration (PANEL MOUNT)275 X 185 X 210
POW-3S-ZC-3L-50A (33KW)Three phase Zero Cross over PWM based thyristor power regulator - 3 leg control suitable for max. 33 KW @ 415/440 VAC in only star configuration (PANEL MOUNT)275 X 185 X 210
POW-3-ZC-2L-100A (72KW)Three phase Zero Cross over PWM based thyristor power regulator - 2 leg control suitable for max. 72 KW @ 415/440 VAC in star or delta configuration (PANEL MOUNT)325 X 185 X240
POW-3S-ZC-3L-100A (72KW)Three phase Zero Cross over PWM based thyristor power regulator - 3 leg control suitable for max. 72 KW @ 415/440 VAC in only star configuration(PANEL MOUNT)325 X 185 X240
POW-3-ZC-2L-400A (288KW)Three phase Zero Cross over PWM based thyristor power regulator - 2 leg control suitable for max. 288 KW @ 415/440 VAC in star or delta configuration (PANEL MOUNT)455 X 360 X 360
POW-3-ZC-3L-400A (288KW)Three phase Zero Cross over PWM based thyristor power regulator - 3 leg control suitable for max. 288 KW @ 415/440 VAC in only star configuration (PANEL MOUNT)455 X 360 X 360
POW-3-ZC-2L-500A (360KW)Three phase Zero Cross over PWM based thyristor power regulator - 2 leg control suitable for max. 360 KW @ 415/440 VAC in star or delta configuration (PANEL MOUNT)500 X 400 X 300
POW-3-ZC-3L-500A (360KW)Three phase Zero Cross over PWM based thyristor power regulator - 3 leg control suitable for max. 360 KW @ 415/440 VAC in only star configuration (PANEL MOUNT)500 X 400 X 300
Request
Callback


Additional Information:

  • Item Code: POW-3-ZC
  • Pay Mode Terms: T/T (Bank Transfer)
  • Port of Dispatch: Mumbai
Yes! I am interested

Three Phase Zero Cross Over Heater Power Switch POW-12

Three Phase Zero Cross Over Heater Power Switch POW-12
  • Three Phase Zero Cross Over Heater Power Switch POW-12
  • Three Phase Zero Cross Over Heater Power Switch POW-12
  • Three Phase Zero Cross Over Heater Power Switch POW-12
  • Three Phase Zero Cross Over Heater Power Switch POW-12
Get Best Quote
Approx. Price: Rs 12,500 / UnitGet Latest Price

Product Details:

Load TypeSuitable for resistive and inductive / transformer load
SizeAs per the Thyristor selection table given Model Wise Descriptions.
On or Off PWM Duty cycle2 to 20 seconds (user adjustable) using on card potentiometer.
BrandLIBRATHERM
Control Signal(4-20) mA / (0-5) VDC / (0-10) VDC / Potentiometer or 5-24VDC pulse.
Outputon/off duty cycle proportional to input control signal from external controller.
Supply Voltage415/440 VAC, 50/60 Hz. (User should specify)
Available Ratings1.5KW to 24KW @ 415VAC/440VAC, 3 phase.
ModelPOW-12
MountingPower pack can be mounted on the base plate of the control panel
Available ConfigurationThree phase (2 leg and 3 leg control) 3 wire star or delta.
Control ActionZero cross over Burst firing, time proportional with variable duty cycle.
ApplicationIndustrial Use

Model Wise Description:


ModelProductSIZE (HxWxD)
POW-12-ZC-2LLOW RATINGS 2 LEG THREE PHASE THYRISTORS (STAR/DELTA CONNECTED LOAD)
POW-12-ZC-2L-10A (6KW)Three phase Zero Cross over PWM based thyristor power regulator - 2 leg control suitable for 3 to 6 KW @ 415/440 VAC in star or delta configuration (PANEL MOUNT)235 X 200 X 75
POW-12-ZC-2L-20A (12KW)Three phase Zero Cross over PWM based thyristor power regulator - 2 leg control suitable for 7 to 12 KW @ 415/440 VAC in star or delta configuration (PANEL MOUNT)235 X 200 X 75
POW-12-ZC-2L-30A (18KW)Three phase Zero Cross over PWM based thyristor power regulator - 2 leg control suitable for 13 to 18 KW @ 415/440 VAC in star or delta configuration (PANEL MOUNT)235 X 200 X 75
POW-12-ZC-2L-40A (24KW)Three phase Zero Cross over PWM based thyristor power regulator - 2 leg control suitable for 19 to 24 KW @ 415/440 VAC in star or delta configuration (PANEL MOUNT)235 X 200 X 75
POW-12S-ZC-3LLOW RATINGS 3 LEG THREE PHASE THYRISTORS (ONLY FOR STAR CONNECTED LOAD)
POW-12S-ZC-3L-10A (6KW)Three phase Zero Cross over PWM based thyristor power regulator - 3 leg control suitable for 3 to 6 KW @ 415/440 VAC in star configuration (PANEL MOUNT)235 X 200 X 75
POW-12S-ZC-3L-20A (12KW)Three phase Zero Cross over PWM based thyristor power regulator - 3 leg control suitable for 7 to 12 KW @ 415/440 VAC in star configuration (PANEL MOUNT)235 X 200 X 75
POW-12S-ZC-3L-30A (18KW)Three phase Zero Cross over PWM based thyristor power regulator - 3 leg control suitable for 13 to 18 KW @ 415/440 VAC in star configuration (PANEL MOUNT)235 X 200 X 75
POW-12S-ZC-3L-40A (24KW)Three phase Zero Cross over PWM based thyristor power regulator - 3 leg control suitable for 19 to 24 KW @ 415/440 VAC in star configuration (PANEL MOUNT)235 X 200 X 75
Features:
  • 3 phase versions
  • Auto / Manual operation.
  • Accepts (4-20)mA / (0-5)VDC / (0-10)VDC or 8 to 24VDC pulse as the control signal.
  • Simple and Modular design for easy servicing of cards and thyristors.
  • Suitable for both inductive and resistive heating loads.
  • Finds application in 3 phase Air heaters in AHU / HVAC.
  • Compatible with DDC/PID/PLC of any brand.
Request
Callback


Additional Information:

  • Item Code: POW-12-ZC
  • Pay Mode Terms: T/T (Bank Transfer)
  • Port of Dispatch: Mumbai
Yes! I am interested

Three Phase Thyristor Based Solid State Relay PWM Control Module POW-12-ZC

Three Phase Thyristor Based Solid State Relay PWM Control Module POW-12-ZC
  • Three Phase Thyristor Based Solid State Relay PWM Control Module POW-12-ZC
  • Three Phase Thyristor Based Solid State Relay PWM Control Module POW-12-ZC
  • Three Phase Thyristor Based Solid State Relay PWM Control Module POW-12-ZC
Get Best Quote
Approx. Price: Rs 12,500 / NumberGet Latest Price

Product Details:

Minimum Order Quantity1 Number
Available Ratings3KW to 60KW @ 3 phase 415/440VAC
Control Signal12 to 24VDC logic pulse or contact from external PID/DDC controller.
ModelAs specified in the above table
Output0 to 230VAC or 0 to 415/440 VAC variable on/off duty cycle directly proportional to the control
Load TypeSuitable for resistive heaters.
Incomer Supply Voltage415/440 VAC, 50/60 Hz. (User should specify)
Mounting Holes4mm x 4 @ 150 H x 90 W mm / 5.5mm x 4 @ 120 H x 168 W mm
Heater LoadThree phase 3 or 4 wire star or 3 wire close delta.
Control ActionZero cross over firing
Dimensions165 x 170 x 145 (h x w x d) mm. for 25A and 50A module. 230 x 190 x 170 (h x w x d) mm. for 100A
Mounting In PanelThyristor module can be mounted on the base plate of the control panel. ( User must AIR circulation)
Phase3 Phase
BrandLibratherm
MountingIndustrial Mounting
Voltage TypeAC

Model Wise Descriptions
Model Product Description
SIZE (H x W x D) mmSSR-3-ZC-2L-25
SSR-3S-ZC-3L-25Three Phase Thyristor based 2 leg or 3 leg solid state relay module - suitable for 3 phase heaters connected in 3 wire Star or Delta configuration (3 to 15KW @ 415/440VAC) - Natural Air Cooled.165 x 170 x 145SSR-3-ZC-2L-50
SSR-3S-ZC-3L-50Three Phase Thyristor based 2 leg or 3 leg solid state relay module - suitable for 3 phase heaters connected in 3 wire Star or Delta configuration (16 to 30KW @ 415/440VAC) - Natural Air Cooled.165 x 170 x 145SSR-3-ZC-2L-100
SSR-3S-ZC-3L-100Three Phase Thyristor based 2 leg or 3 leg solid state relay module - suitable for 3 phase heaters connected in 3 wire Star or Delta configuration (31 to 60KW @ 415/440VAC) - Force Air Cooled (through FAN).230 x 190 x 170
Features
Uses High PIV Semikron make SCR modules (SKKT series)
3 phase load / 2 leg star/delta or 3 leg star control.
Accepts DC pulse (12-24) VDC as the control signal from external controller.
Simple and Modular design for easy servicing of cards and thyristors.
Suitable for resistive heating loads.
Finds application in 3 phase Air heaters in Ovens/Furnace/AHU / DHU/ HVAC etc
Compatible with DDC/PID/PLC of any brand.
Description of Thyristor based 3 phase Solid State Relay (SSR)
Libratherm offers ready to use 3 phase Zero Cross over thyristor based solid state relay module model SSR-3-ZC-2L and SSR-3S-ZC-3L for electrical heating loads ranging from 3KW to 60KW @ 415/440VAC. This SSR module comprises of Libratherm make triggering card, which generates the zero cross over firing pulses to control suitably rated back to back connected SCRs, which is duly mounted on the heat sink with input terminal for control signal and heavy duty bus bars for heaters and incomer AC power supply. The entire assembly is mounted in MS powder coated enclosure, 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.

Request
Callback


Additional Information:

  • Item Code: SSR-3-ZC-2L_SSR-3S-ZC-3L
  • Pay Mode Terms: T/T (Bank Transfer)
  • Port of Dispatch: Mumbai
Yes! I am interested
View PDF
X

Explore more products



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



Call Us

Share Us

F GT L


Send E-mailSend SMS