|Minimum Order Quantity||1 Piece|
|Input Type||RTD, Thermocouple|
|Country of Origin||Made in India|
|Temperature||-80.0 to 100.0 C|
|Interface||Serial (RS232/RS485) for PC interface|
|Data Logging||Real Time with programmable log and storage time|
|Output||DC pulses to drive external SSR for Air Heater, Boiler Heater, Compressor and High Alarm Buzzer|
|Accuracy Better than||0.1%|
|Display||2 digit for unit C or Rh, 4 digit each for process, 6 digit for RTC|
|Control Action||On/Off for Heat, Cool, Humidity & De-humidity.|
|Enclosure||Metal Powder Coated.|
|Panel cut out||188 x 92 mm /- 0.5 mm|
|Size||192 x 96 x 200 mm|
|Supply||230 / 110 VAC +- 10% (10VA), 50/60Hz or 24VDC @ 500mA|
|Data Storage||2K to 128K memory bank|
Our range of microprocessor-based Humidity & Temperature Controller (for Stability chambers) is best used for stability chambers. It has manual tuning of PID values.
HTC-3003: Microcontroller based Temperature & %RH PID-On/Off controller (2 AI + 2 DI and 4 DO) with RTC, Printer port, RS-485 Serial port and Extra 256KB memory bank.
|Minimum Order Quantity||1 Number|
|Type||Solid State Relay|
|Usage/Application||Heater Power Controller|
|Available Ratings||3KW to 60KW @ 3 phase 415/440VAC|
|Output||0 to 230VAC or 0 to 415/440 VAC variable on/off duty cycle directly proportional to the control|
|Load Type||Suitable for resistive heaters.|
|Incomer Supply Voltage||415/440 VAC,50/60 Hz. (User should specify)|
|Dimensions||165 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 Panel||Thyristor module can be mounted on the base plate of the control panel. ( User must AIR circulation)|
|Mounting Holes||4mm x 4 @ 150 H x 90 W mm / 5.5mm x 4 @ 120 H x 168 W mm|
|Model||As specified in the above table|
|Heater Load||Three phase 3 or 4 wire star or 3 wire close delta.|
|Control Action||Zero cross over firing|
|Control Signal||12 to 24VDC logic pulse or contact from external PID/DDC controller.|
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
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.