Nihon SCR Contactors 
Darrah offers a full line of drop in and replacements of the Japanese style Nihon SCR Contactors. Installation instructions are provided upon request.
| Nihon Part # |
Welding Rating 100% Duty Cycle |
| WTH-A18J | 220 AMPS |
| WTH-C18J | 550 AMPS |
| WTH-D18J | 900 AMPS |
| WTH-E18J | 1100 AMPS |
| WTH-F18J | 1600 AMPS |
| WTH-G18J | 2200 AMPS |
| WTH-H18J | 3000 AMPS |
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Please contact us for any questions, pricing and/or lead times at 800-621-0014
