TCSH2B - TCS Series

Series: TCS
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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 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.


Operation
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.

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Product Literature

For Technical Questions

Call +1 800-832-3873 or email us at relays@littelfuse.com 

Property (Mouseover for details) Value
Output Voltage 24 - 240 Vac; +10 / -20%
Output Voltage Drop (V) ≅2.5
Output Type Solid state
Output Form NC
Output Load Rating (VA) Steady state: 1 A; Inrush: 10 A
Response Time (ms) Overcurrent: ≤200 ms; Undercurrent: ≤1 s
Sensor Type Toroid; through hole wiring; alternating current; monitored wire must be properly insulated
Current Sensor Range 2 A fixed +0/-20%; Steady - 50 A turns; Reset: ≅95% of the actuate current; Maximum: Steady - 50 A turns; Inrush - 300 A turns for 10 s
Sensor Hole Size 0.36 in. (9.14 mm) for up to #4 AWG (21.1 mm²) THHN wire
Insulation Resistance ≥100
Dielectric Breakdown ≥2000 terminals to mounting surface
Burden (VA) ≤0.5
Termination Type 0.25 in. (6.3 mm) male quick connect terminals
Mounting Method Surface mount with one #10 (M5 x 0.8) screw
Operating Temperature -20° to 60°C (-4° to 140°F)
Storage Temperature (F/C) -40° to 85°C (-40° to 185°F)
Humidity 95% non-condensing
Dimensions 2 H x 2 W x 1.75 D in. (50.8 x 50.8 x 44.5 mm)
Weight (lbs/g) 0 Kg
Check Stock Yes

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