Allen-Bradley 815-C0V16 Thermal Overload Relay

The Allen-Bradley 815-COV16 Thermal Overload Relay is a manual-reset overload protection device used to safeguard motors in industrial control circuits. It is part of the Allen-Bradley Bulletin 815 family of overload relays, designed to provide thermal protection in the motor starter path and to interrupt current when temperatures exceed preset limits, with an operator-initiated reset after a trip. Suffixes in 815 models indicate configuration variants within the family.

The 815-COV16 variant represents a specific configuration within the 815 series, typically used in control panels with contactors to protect AC motors in industrial machinery and process equipment. This family is associated with manual-reset overload protection panels and is designed to integrate with standard motor-control assemblies.

In practice, these relays provide localized thermal protection as part of the motor-starting circuit, acting as a protective element alongside the accompanying contactor in the control enclosure. The 815 family is chosen when a dedicated, manual-reset overload function is required for reliable motor protection in industrial applications.