EN 60947, VDE 0660. Schneider Electric LC2D TeSys D Reversing Contactors. TeSys D reversing Contactors from Schneider Electric combine long mechanical and electrical life to offer a high reliable contactor. The LC2D series is preassembled with reversing power busbar and has been designed for motor control or resistive load applications. The TeSys D contactors offer quick simple setup while maintaining compliance with international standards. Features and Benefits. Built-in auxiliary contacts for added switching capability Pre-installed interlock Screw connections: IP20 finger-safe terminals with both North American and International terminal markings Can be panel mounted with screws or DIN Rail mounted Easily installed accessories Flexible control circuit to suit a wide range of applications. What does the utilisation category AC1 and AC3 mean for the TeSys contactors . Contactor utilisation categories define the current making and breaking values, based on the type of load to be controlled and the operating cycle conditions. AC-1: This applies to all AC devices with a power factor of at least 0.95. Example of use: resistive load, heating, distribution. AC-3: This applies to squirrel cage motors where breaking occurs while the motor is running. Example of use: all squirrel cage motors, lifts, escalators, conveyors, bucket elevators, compressors, pumps, mixers, air conditioning units. What is a reversing contactor . A reversing contactor is an assembly of two of standard contactors, with a mechanical and electrical interlock connecting them. The interlocks allow only one contactor to be closed (giving power supply to the motor) at any time. Is the TeSys D range a double break pole type contactor . Yes the Tesys D range uses linear translation movement that provides double breaking of the poles.