Name: TCS Series - Current Sensor
Brand: Littelfuse Inc.

TCS Series - Current Sensor

Series: TCS

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Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

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.

Product Literature

TCS Datasheet

Protection Relays and Controls Catalog

Protection Relays and Controls Catalog - Spanish

For Technical Questions

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

Electrical Characteristics

Environmental Info

Technical Resources

Access specifications, certifications, check availability and order parts below

Catalog # Output Voltage Output
Form Termination Type Mounting Method Dimensions Weight (lbs/g) Burden (VA) Dielectric Breakdown Humidity Insulation Resistance Output Load Rating (VA) Output Type Output Voltage Drop (V) Response Time (ms) Sensor Hole Size Stock Samples Compare
TCSG2A 3 - 50 Vdc NO 0.25 in. (6.3 mm) male quick connect terminals Surface mount with one #10 (M5 x 0.8) screw 2 H x 2 W x 1.75 D in. (50.8 x 50.8 x 44.5 mm) 0 Kg ≤0.5 ≥2000 terminals to mounting surface 95% non-condensing ≥100 Steady state: 1 A; Inrush: 10 A Solid state ≅1.2 Overcurrent: ≤200 ms; Undercurrent: ≤1 s 0.36 in. (9.14 mm) for up to #4 AWG (21.1 mm²) THHN wire Check Order
TCSGAA 3 - 50 Vdc NO 0.25 in. (6.3 mm) male quick connect terminals Surface mount with one #10 (M5 x 0.8) screw 2 H x 2 W x 1.75 D in. (50.8 x 50.8 x 44.5 mm) 0 Kg ≤0.5 ≥2000 terminals to mounting surface 95% non-condensing ≥100 Steady state: 1 A; Inrush: 10 A Solid state ≅1.2 Overcurrent: ≤200 ms; Undercurrent: ≤1 s 0.36 in. (9.14 mm) for up to #4 AWG (21.1 mm²) THHN wire Check Order
TCSGAB 3 - 50 Vdc NC 0.25 in. (6.3 mm) male quick connect terminals Surface mount with one #10 (M5 x 0.8) screw 2 H x 2 W x 1.75 D in. (50.8 x 50.8 x 44.5 mm) 0 Kg ≤0.5 ≥2000 terminals to mounting surface 95% non-condensing ≥100 Steady state: 1 A; Inrush: 10 A Solid state ≅1.2 Overcurrent: ≤200 ms; Undercurrent: ≤1 s 0.36 in. (9.14 mm) for up to #4 AWG (21.1 mm²) THHN wire Check Order
TCSH2A 24 - 240 Vac; +10 / -20% NO 0.25 in. (6.3 mm) male quick connect terminals Surface mount with one #10 (M5 x 0.8) screw 2 H x 2 W x 1.75 D in. (50.8 x 50.8 x 44.5 mm) 0 Kg ≤0.5 ≥2000 terminals to mounting surface 95% non-condensing ≥100 Steady state: 1 A; Inrush: 10 A Solid state ≅2.5 Overcurrent: ≤200 ms; Undercurrent: ≤1 s 0.36 in. (9.14 mm) for up to #4 AWG (21.1 mm²) THHN wire Check Order
TCSH2B 24 - 240 Vac; +10 / -20% NC 0.25 in. (6.3 mm) male quick connect terminals Surface mount with one #10 (M5 x 0.8) screw 2 H x 2 W x 1.75 D in. (50.8 x 50.8 x 44.5 mm) 0 Kg ≤0.5 ≥2000 terminals to mounting surface 95% non-condensing ≥100 Steady state: 1 A; Inrush: 10 A Solid state ≅2.5 Overcurrent: ≤200 ms; Undercurrent: ≤1 s 0.36 in. (9.14 mm) for up to #4 AWG (21.1 mm²) THHN wire Check Order
TCSHAA 24 - 240 Vac; +10 / -20% NO 0.25 in. (6.3 mm) male quick connect terminals Surface mount with one #10 (M5 x 0.8) screw 2 H x 2 W x 1.75 D in. (50.8 x 50.8 x 44.5 mm) 0 Kg ≤0.5 ≥2000 terminals to mounting surface 95% non-condensing ≥100 Steady state: 1 A; Inrush: 10 A Solid state ≅2.5 Overcurrent: ≤200 ms; Undercurrent: ≤1 s 0.36 in. (9.14 mm) for up to #4 AWG (21.1 mm²) THHN wire Check Order
TCSHAB 24 - 240 Vac; +10 / -20% NC 0.25 in. (6.3 mm) male quick connect terminals Surface mount with one #10 (M5 x 0.8) screw 2 H x 2 W x 1.75 D in. (50.8 x 50.8 x 44.5 mm) 0 Kg ≤0.5 ≥2000 terminals to mounting surface 95% non-condensing ≥100 Steady state: 1 A; Inrush: 10 A Solid state ≅2.5 Overcurrent: ≤200 ms; Undercurrent: ≤1 s 0.36 in. (9.14 mm) for up to #4 AWG (21.1 mm²) THHN wire Check Order
TCSH5B
Obsolete: 2020 -10-07 24 - 240 Vac; +10 / -20% NC 0.25 in. (6.3 mm) male quick connect terminals Surface mount with one #10 (M5 x 0.8) screw 2 H x 2 W x 1.75 D in. (50.8 x 50.8 x 44.5 mm) 0 Kg ≤0.5 ≥2000 terminals to mounting surface 95% non-condensing ≥100 Steady state: 1 A; Inrush: 10 A Solid state ≅2.5 Overcurrent: ≤200 ms; Undercurrent: ≤1 s 0.36 in. (9.14 mm) for up to #4 AWG (21.1 mm²) THHN wire Check

Part # Part Description RoHS Pb-free RoHS (2015/ 863/EU) Certificate REACH (SVHC’s) Declaration Halogen Free REACH (SVHC’s) IPC-Material Declaration

TCSH2A CURRENT SENSOR No 10/16/2018 No 10/16/2018 CoC_RoHS9_TCSH2A REACH211_Declaration_(Contain)_TCSH2A Yes
10/16/2018 Contains

Part Number - TCSH2A

IPC-Material Declaration
Select All
X

TCSHAA CURRENT SENSOR No 08/27/2021 No 08/27/2021 CoC_RoHS9_TCSHAA REACH211_Declaration_(Contain)_TCSHAA Yes
08/27/2021 Contains

Part Number - TCSHAA

IPC-Material Declaration
Select All
X

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Datasheets

Product Catalogs

TCS Datasheet

Protection Relays and Controls Catalog

Protection Relays and Controls Catalog - Spanish

Protection Relays and Controls Catalog - Mandarin

Catalog #	Output Voltage	Output Form	Termination Type	Mounting Method	Dimensions	Weight (lbs/g)	Burden (VA)	Dielectric Breakdown	Humidity	Insulation Resistance	Output Load Rating (VA)	Output Type	Output Voltage Drop (V)	Response Time (ms)	Sensor Hole Size	Stock	Samples

TCSG2A	3 - 50 Vdc	NO	0.25 in. (6.3 mm) male quick connect terminals	Surface mount with one #10 (M5 x 0.8) screw	2 H x 2 W x 1.75 D in. (50.8 x 50.8 x 44.5 mm)	0 Kg	≤0.5	≥2000 terminals to mounting surface	95% non-condensing	≥100	Steady state: 1 A; Inrush: 10 A	Solid state	≅1.2	Overcurrent: ≤200 ms; Undercurrent: ≤1 s	0.36 in. (9.14 mm) for up to #4 AWG (21.1 mm²) THHN wire	Check	Order
TCSGAA	3 - 50 Vdc	NO	0.25 in. (6.3 mm) male quick connect terminals	Surface mount with one #10 (M5 x 0.8) screw	2 H x 2 W x 1.75 D in. (50.8 x 50.8 x 44.5 mm)	0 Kg	≤0.5	≥2000 terminals to mounting surface	95% non-condensing	≥100	Steady state: 1 A; Inrush: 10 A	Solid state	≅1.2	Overcurrent: ≤200 ms; Undercurrent: ≤1 s	0.36 in. (9.14 mm) for up to #4 AWG (21.1 mm²) THHN wire	Check	Order
TCSGAB	3 - 50 Vdc	NC	0.25 in. (6.3 mm) male quick connect terminals	Surface mount with one #10 (M5 x 0.8) screw	2 H x 2 W x 1.75 D in. (50.8 x 50.8 x 44.5 mm)	0 Kg	≤0.5	≥2000 terminals to mounting surface	95% non-condensing	≥100	Steady state: 1 A; Inrush: 10 A	Solid state	≅1.2	Overcurrent: ≤200 ms; Undercurrent: ≤1 s	0.36 in. (9.14 mm) for up to #4 AWG (21.1 mm²) THHN wire	Check	Order
TCSH2A	24 - 240 Vac; +10 / -20%	NO	0.25 in. (6.3 mm) male quick connect terminals	Surface mount with one #10 (M5 x 0.8) screw	2 H x 2 W x 1.75 D in. (50.8 x 50.8 x 44.5 mm)	0 Kg	≤0.5	≥2000 terminals to mounting surface	95% non-condensing	≥100	Steady state: 1 A; Inrush: 10 A	Solid state	≅2.5	Overcurrent: ≤200 ms; Undercurrent: ≤1 s	0.36 in. (9.14 mm) for up to #4 AWG (21.1 mm²) THHN wire	Check	Order
TCSH2B	24 - 240 Vac; +10 / -20%	NC	0.25 in. (6.3 mm) male quick connect terminals	Surface mount with one #10 (M5 x 0.8) screw	2 H x 2 W x 1.75 D in. (50.8 x 50.8 x 44.5 mm)	0 Kg	≤0.5	≥2000 terminals to mounting surface	95% non-condensing	≥100	Steady state: 1 A; Inrush: 10 A	Solid state	≅2.5	Overcurrent: ≤200 ms; Undercurrent: ≤1 s	0.36 in. (9.14 mm) for up to #4 AWG (21.1 mm²) THHN wire	Check	Order
TCSHAA	24 - 240 Vac; +10 / -20%	NO	0.25 in. (6.3 mm) male quick connect terminals	Surface mount with one #10 (M5 x 0.8) screw	2 H x 2 W x 1.75 D in. (50.8 x 50.8 x 44.5 mm)	0 Kg	≤0.5	≥2000 terminals to mounting surface	95% non-condensing	≥100	Steady state: 1 A; Inrush: 10 A	Solid state	≅2.5	Overcurrent: ≤200 ms; Undercurrent: ≤1 s	0.36 in. (9.14 mm) for up to #4 AWG (21.1 mm²) THHN wire	Check	Order
TCSHAB	24 - 240 Vac; +10 / -20%	NC	0.25 in. (6.3 mm) male quick connect terminals	Surface mount with one #10 (M5 x 0.8) screw	2 H x 2 W x 1.75 D in. (50.8 x 50.8 x 44.5 mm)	0 Kg	≤0.5	≥2000 terminals to mounting surface	95% non-condensing	≥100	Steady state: 1 A; Inrush: 10 A	Solid state	≅2.5	Overcurrent: ≤200 ms; Undercurrent: ≤1 s	0.36 in. (9.14 mm) for up to #4 AWG (21.1 mm²) THHN wire	Check	Order
TCSH5B Obsolete: 2020 -10-07	24 - 240 Vac; +10 / -20%	NC	0.25 in. (6.3 mm) male quick connect terminals	Surface mount with one #10 (M5 x 0.8) screw	2 H x 2 W x 1.75 D in. (50.8 x 50.8 x 44.5 mm)	0 Kg	≤0.5	≥2000 terminals to mounting surface	95% non-condensing	≥100	Steady state: 1 A; Inrush: 10 A	Solid state	≅2.5	Overcurrent: ≤200 ms; Undercurrent: ≤1 s	0.36 in. (9.14 mm) for up to #4 AWG (21.1 mm²) THHN wire	Check

Part #	Part Description	RoHS	Pb-free	RoHS (2015/ 863/EU) Certificate	REACH (SVHC’s) Declaration	Halogen Free	REACH (SVHC’s)	IPC-Material Declaration
TCSH2A	CURRENT SENSOR	No 10/16/2018	No 10/16/2018	CoC_RoHS9_TCSH2A	REACH211_Declaration_(Contain)_TCSH2A	Yes 10/16/2018	Contains	Part Number - TCSH2A IPC-Material Declaration Select All X
TCSHAA	CURRENT SENSOR	No 08/27/2021	No 08/27/2021	CoC_RoHS9_TCSHAA	REACH211_Declaration_(Contain)_TCSHAA	Yes 08/27/2021	Contains	Part Number - TCSHAA IPC-Material Declaration Select All X

	TCS Datasheet
	Protection Relays and Controls Catalog
	Protection Relays and Controls Catalog - Spanish
	Protection Relays and Controls Catalog - Mandarin

Semiconductors

TCS Series - Current Sensor

Product Literature

For Technical Questions

Part Number - TCSH2A

IPC-Material Declaration

Part Number - TCSHAA

IPC-Material Declaration

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