Allen-Bradley 815-C0V49 Overload Relay

Allen-Bradley 815-C0V49 Overload Relay (also shown as 815-COV49) is a size-2 motor overload protection device designed to be used with compatible Allen-Bradley contactors in motor starter assemblies. This relay provides thermal overload protection by monitoring motor current and opening the circuit if the load exceeds the preset threshold, helping prevent motor damage from nuisance trips or stall conditions. When paired with a compatible Allen-Bradley contactor in a control panel, it serves as the primary safeguard against overheating motors in AC applications. Typical applications include conveyors, pumps, fans, and other driven loads where motor protection is required in industrial automation. Some aftermarket listings note a maximum operating voltage of up to 600 VAC for this model, and the 815-COV49 designation aligns with the tradition of Allen-Bradley’s serial‑numbered overload relays in the 800/8000 family; however, verify the exact voltage and current rating against the official catalog to ensure compatibility with your motor's full-load amps and supply voltage. The 815 family is designed for straightforward integration with standard NEMA frame contactors and offers a compact, modular form factor to simplify panel layouts and replacement. This particular variant, 815-C0V49, is referenced across multiple distributors under the same model code, underscoring its role as a motor protection relay within the Allen-Bradley ecosystem.