55151 Balboa ® Circuit Board VS520SZ w/ M7 technology

55151 Balboa ® Circuit Board, VS520SZ Balboa Water Group ® Spa Control Circuit Board.  Designed to be used in Balboa's patented M7 ® temperature and water flow sensing technology   Features: Chip VS520SZR1A Phone style (RJ45) plug connection Product specifications: Cable: 8-Pin Software version: 43 Power requirements: 240 VAC, 60Hz, 40A, class A, (Circuit breaker rating=50A max) Alternate part number:  55151-01 Documents:  55151 Tech sheet Balboa's chips cross reference Circuit boards are not "plug and play - they will require correct component voltage set-up and dipswitch configuration. Please follow the wiring schematics on the back side of the spa pack cover. Do not buy a circuit board based on appearance, as many boards look the same and manufacturers can change board appearance. Refer to this tech tip before buying a replacement board What to Look for When Buying a Circuit Board €“ Spa Parts Experts SKU: 55151MPN: 55151Model:  VS520SZR1AUPC:  753610463023Manufacturer: B