Description
The Raypak 600890B is a 140°F high-limit temperature controller (auto-reset) for Raypak pool and spa heaters. It is a small, round thermal limit switch-approximately 7/8″ diameter with a 1/2″ body-that uses two insulated leads exiting a black plastic base (no pre-attached connectors) for hardwired connection. Compatible with Spa-Pak/heater models 53A and 53B and select 055A/055B units; some listings show OEM/catalog reference 6233-05.
