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Toll Free, US (888) 584-6078
Montreal, PQ (514) 400-0518
Fremont, CA (510) 371-8111
London, UK (20) 3004 9222
Portland, ME (207) 922-9900
Toll Free, US (888) 584-6078
Montreal, PQ (514) 400-0518
Fremont, CA (510) 371-8111
London, UK (20) 3004 9222
Portland, ME (207) 922-9900
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[ RC520DU-UL ] Control Module by Seiko
Stock Status: Confirmed: 11/2/2025
We supply obsolete business quality parts for use in 
manufacturing environments including power plants and other facilities.
RC520DU-UL Control Module RC520DU-UL  Control Module RC520DU-UL circuit board
All products conform to ETL or other  nationally recognized safety certifications.
Click below for bulk pricing or manufacturer specifications.

Volume / Reseller Pricing Available