Littelfuse TCSH2B, TCS Series, Current Sensor, Current Sensing AC 24 ~ 240VAC, Normally closed

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The TCS Series is a low cost method of go/no go current detection. It includes a solid-state output to sink or source current when connected directly to a standard PLC digital inpu t module. Its normally open or normally closed output can also be used to control relays, lamps, valves, and small heaters rated up to 1A steady, 10A inrush. The TCS is self-powered (no external power required to operate the unit) and available with an adjustable actuation range of 2 - 20A or factory fixed actuation points from 2 - 45A. OperationNormally Open: When a current equal to or greater than the actuate current is passed through the toroidal sensor, the output closes. When the current is reduced to 95% of the actuate current or less, the output opens.Normally Closed: When the current through the toroid is equal to or greater than the actuate current, the output opens. When the current is reduced below 95% of the actuate current, the output closes. To increase sensitivity, multiple turns may be made through the TCS’s toroidal sensor. The trip point range is divided by the number of turns through the toroidal sensor to create a new range. When using an external CT, select a 2VA, 0-20A output CT rated for the current to be monitored. Select TCS adjustment range 0. Pass one secondary wire lead through the TCS’ toroid and connect the secondary leads together. Pre-order 6-8 Weeks Sensor Type Toroid, through hole wiring, alternating current, monitored wire must be properly insulated Current to Actuate Adjustable: - 2 - 20A, guaranteed rangeFixed: - 2 - 45A, +0/-20% Reset Current ≅ 95% of the actuate current Maximum Allowable Current Steady - 50A turnsInrush - 300A turns for 10s Actuate Current vs. Temp. & Voltage ≤ ±5% Response Times Overcurrent - ≤ 200msUndercurrent - ≤ 1s Burden < 0.5VA Output Type Solid state Form NO or NC Rating 1A steady, 10A inrush Voltage AC - 24 to 240VAC +10/-20%DC - 3 to 50VDC Voltage Drop AC NO & NC - ≅ 2.5VDC NO & NC - ≅ 1.2V Protection Circuitry Encapsulated Dielectric Breakdown ≥ 2000V RMS terminals to mounting surface Insulation Resistance ≥ 100 MΩ Mechanical Mounting Surface mount with one #10 (M5 x 0.8) screw Dimensions H 50.8 mm (2”); W 50.8 mm (2”);D 44.5 mm (1.75”) Termination 0.25 in. (6.35 mm) male quick connect terminals (2) Sensor Hole 0.36 in. (9.14 mm) for up to #4 AWG (21.1 mm2) THHN wire Environmental Operating/Storage Temperature -20° to 60°C / -40° to 85°C Humidity 95% relative, non-condensing Weight ≅ 2.6 oz (74 g) Humidity 95% relative, non-condensing Show more