As an Amazon Associate, we earn from qualifying purchases.
Broan - Nutone S0521B000 Relay For Central Vac-NUT-S0521B00
The NuTone S0521B000 is a genuine Broan Nutone Central Vacuum Relay Repair Kit. It replaces part 0521-B000 and fits models 352, CV350, CV352, CV353, CV550, CV553, CV353W, CV400, CV400C, CV450W, and CV-450W. Units manufactured before May 1997 have 5 wires, requiring the cap-off of two extra wires with wire nuts, which are not included.