TCSH2B - TCS Series

Series: TCS Questions? Contact Littelfuse Support
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 input 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.

Normally 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.

Property (Mouseover for details) Value
Output Voltage 24 to 240VAC; +10 / -20%
Output Voltage Drop (V) AC NO and NC - ≅ 2.5V; DC NO and NC - ≅ 1.2V
Output Type Solid state
Output Form NC
Output Load Rating (VA) 1A steady 10A inrush
Response Time (ms) Overcurrent - ≤ 200ms; Undercurrent - ≤ 1s
Setpoint vs Ambient Temperature and Operating Voltage (%) ≤ ±5%
Sensor Type Toroid through hole wiring alternating current monitored wire must be properly insulated
Current Sensor Range 2A fixed +0/-20%; Steady - 50A turns; Reset: ≅ 95% of the actuate current; Maximum: Steady - 50A turns; Inrush - 300A turns for 10s
Sensor Hole Size 0.36 in. (9.14mm) for up to #4 AWG (21.1mm2) THHN wire
Insulation Resistance ≥100 MΩ
Dielectric Breakdown ≥2000V RMS terminals to mounting surface
Circuitry Encapsulated
Burden (VA) ≤0.5VA
Termination Type 0.25 in. (6.35mm) male quick connect terminals
Mounting Method Surface mount with one #10 (M5 x 0.8) screw
Operating Temperature -20° to 60°C (-4°F to 140°F)
Storage Temperature (F/C) -40° to 85°C (-40°F to 185°F)
Humidity 95% relative non-condensing
Dimensions 2.00 x 2.00 x 1.75 in. (50.8 x 50.8 x 44.5mm)
Weight (lbs/g) ≅2.6oz (74g)