Voltage Versatility: Rated for up to 250 VAC

fixed-setting high pressure cut-out switch engineered for maximum system protection in refrigeration and R410A HVAC applications

Measuring 10 inches in diameter and 8 inches in width

The Cleveland Controls NS2-0221-00 is a high-performance air pressure sensing switch designed for residential and light commercial HVAC furnace applications

Common Questions Which boiler models are compatible with the 550001939 kit

Resideo L8124G1020 Relay 318518-761 Voltage Versatility: Rated for upThe Resideo L8124G1020 Relay is a specialized Triple Aquastat Relay designed for forced hydronic heating systems that require high limit protection, low limit control, and circulator management. This immersion type controller features SPST high and low limit switching to maintain boiler water temperature and ensure efficient domestic hot water service. For multi zone applications, this unit allows for independent control by using an R845 Relay for