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• Schneider Electric LC1D TeSys D contactor. Schneider Electric TeSys D contactors are highly reliable contactors with long mechanical and electrical life. This series is designed for control system integration and can be used to create motor starters in a variety of applications. TeSys D contactors are quick and easy to set up while maintaining compliance with international standards. Features and benefits: Built-in auxiliary contacts for enhanced switching Screw connection: Supports both North American and international terminal markings IP20 finger protection terminal Supports panel or DIN rail mounting with Screws Bidirectional peak limiting diode suppressor for coil protection Easy-to-install accessories Flexible control circuits for a wide range of applications What do TeSys contactor usage categories AC1 and AC3 mean? Contactor usage categories define make/break current values based on the Type of load being controlled and operating cycle conditions. AC-1: Applies to all AC equipment with a power factor of 0.95 or greater. Examples of use: resistive loads, heaters, power distribution, etc. AC-3: Applicable to three-phase squirrel cage motors where a break occurs during motor operation. Examples of use: all three-phase cage motors, elevators, escalators, conveyors, bucket elevators, compressors, pumps, mixers, air conditioning units, etc. What accessories are available? Auxiliary Contact Block with sawtooth wiping motion Front-mounted dust-proof Auxiliary Contact Block Pneumatic time-delay block Transient voltage Surge Suppressor interface module and electronic timer Mechanical Latch Block Is the TeSys D series a double-break pole Type contactor? Yes, the TeSys D series offers parallel pole double-break. Features of the LC1DT20FD Schneider Electric LC1D TeSys D contactor for resistive load applications. AC-1 category: 690 V ac 25 → 400 Hz (power circuit), < = 300 V dc (power circuit rated voltage) 20 A < (:60 °C ) @ < = 440 V ac AC-1 (power circuit Ie current rating) DC standard circuit circuit voltage: 110 V dc 1 NO + 1 NC auxiliary contact overvoltage Category III rated breaking capacity: 250 A @ 440 V (power circuit complies with IEC 60947). Complete with protective cover. Plate and rail mounting IP2x front according to IEC60529.