Dairymaster Liquid Level Controller Contactor Thermal Overload Relay (Single Phase) The Dairymaster liquid level controller contactor thermal overload relay (single phase) is a replacement contactor unit designed for use with Dairymaster single-phase liquid level controller systems , ensuring safe, reliable switching and overload protection during tank filling and wash cycles. This component is rated at 7A–10A , providing the correct operating range for most single-phase Dairymaster controller setups. Replacing a worn or faulty contactor helps maintain accurate level control, consistent pump operation, and protection against electrical overload , supporting smooth system performance and reducing the risk of unexpected shutdowns. Contactor and overload units are exposed to frequent start–stop cycles, moisture, and heat within dairy environments. Over time, contacts can wear or overload triggers may weaken, leading to unreliable operation or nuisance tripping. Installing a new Dairymaster liquid level controller contactor thermal overload relay (single phase) restores dependable functioning and prevents interruptions to milking or wash routines. This unit is supplied as a complete co
