Siemens OLR0803 Overload Relay is a Siemens Allis motor-protection relay rated 55-80A, designed to protect three-phase motors by interrupting current when overload conditions are detected. It is specified for use with Siemens Allis CXL30 3-NEMA Size 3 contactors, and is commonly paired with the 3TB48 contactor model as part of a motor starter assembly. In operation, the relay provides overload protection in motor circuits, coordinating with the contactor to safeguard equipment in typical industrial drive setups.
