End of Year sale on GTO Gate Drivers
Darrah Electric
Company
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Published 07/15/2019

ISOLATED SCR MODULES Integral Water Cooled

Darrah offers Isolated SCR Modules featuring standard dual SCR modules witg integral water cooled bases. Our improved design has eliminated thermal barriers associated with separate cooling bases. This product line features industry standard dual SCR modules with integral water cooled bases. Our improved design has eliminated thermal barriers associated with separate cooling bases. This has increased current ratings by as much as 15%. In addition, because the water connections are directly tapped to the module base, water leaks are virtually eliminated. To further enhance water integrity, each unit is 100% pressure tested at 150 PSI for one minute.
Another significant feature is that the modules are vacuum filled with a high performance, flame retardant silicone-based material at final assembly which eliminates hidden voids inside the package and prevents dust and dirt from penetrating which may cause premature failure. All cooling bases are copper, then nickel plated.
Our modules are recognized under the Recognized
Component Program of Underwriters Laboratories, Inc. USA.

Water Requirements:
Amps RMS is achieved with a cooling flow rate of 1.2 gallons (4-5 liters) per minute at 400 C water temperature.
Water Connections:
1/4-18 NPT tapped holes Thermostat:
All modules are supplied with an encapsulated thermostat sensor, 500 C open on rise and isolated to base to 2000 Volts. Thermostat leads are 24 inches long.
Options include: R/C snubber, MOV's and bus bars.
Duty Cycles and mechanical drawings are available for each model.
All Modules are also available in BSPT pipe threads.

DARRAH
PART NUMBER
WELDING RATING
AMPS RMS AT
10% DUTY CYCLE
WELDING RATING
AMPS RMS AT
50% DUTY CYCLE
WELDING RATING
AMPS RMS AT
100% DUTY CYCLE
SCR VOLTAGE
RATING
(PIV) (VRRM)
WATER CONNECTION
LOCATION
PACKAGE
DESIGN
Q20001 1592 1278 717 1800V SIDE 1-1/2" CENTERS MP03
Q20002 1592 1278 717 1800V BOTTOM 1-1/2" CENTERS MP03
Q20003 1592 1278 717 1800V SIDE 2" CENTERS MP03
Q20006 1592 1278 717 1800V SIDE 1-1/2" CENTERS MP03
Q20008 1068 755 450 1800V SIDE 2" CENTERS MP02
Q20009 1068 755 450 1800V BOTTOM 2" CENTERS MP02
Q20011 2797 1522 1097 1800V SIDE 1-1/2" CENTERS MP04
Q20012 2797 1522 1097 1800V BOTTOM 1-1/2" CENTERS MP04
Q20013 2797 1522 1097 1800V SIDE 2" CENTERS MP04

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For any questions or custom designs email or call us at 800-621-0014