Schneider Electric B40.0 Thermal Overload Relay, also listed as Square D B40.0, is a B40-series thermal overload relay unit. This thermal unit is a dedicated overload protection device identified by the B40.0 model designation for use in electrical control circuits. When ordering or cataloging, reference the exact B40.0 variant from Schneider Electric/Square D to ensure you match the intended part in the B40 family.
