SSAC TCSA Series Catalog Page

Current

PS

4 10 20

mA

A

50, 20, 10, 5

25, 10, 5, 2.5

0

Monitored

Current

Amps

Output

Sensors &

Monitors

AC Current Transducer

TCSA Series
Loop Powered

Description

The TCSA Series is a loop powered, linear output current transducer that provides an output that is directly
proportional to the RMS AC current passing through the onboard toroid. The TCSA provides a 4 to 20 mA
output over a power supply range of 10 to 30 V DC. Each unit is factory calibrated for monitoring from
0 to 5, 0 to 10, 0 to 20, or 0 to 50 A in four ranges. The 0 to 5 A range allows the use of external current
transformers so loads up to 1200 AC amps can be monitored.

Monitors 0 ...50 A in 4 Ranges
Loop Powered from

10 ... 30 V DC

Linear Output from 4 ... 20 mA
Zero and Span Adjustments

Complete Isolation Between
Sensed Current and Control
Circuit

Approvals:

Operation

The TCSA varies the effective resistance of its output in
direct proportion to the current flowing in the monitored
conductor. The unit is factory calibrated so that 0 amps
provides a 4 mA output and full span provides a 20 mA
output. Zero and span adjustments are provided for
minor calibration adjustments in the field (if required).

Using an External Current Transformer (CT)

Select a 2 VA, 0 to 5 A output CT, rated for the current
to be monitored. Select TCSA5. Pass one of the
CT’s secondary wire leads through the TCSA’s toroid.
Connect the CT’s secondary leads together.

Connection

PS = Power Supply Z = Zero Adjust S = Span Adjust

W = Insulated Wire Carrying Monitored Current

PLC = PLC Analog Input or Meter Input

Accessories

Female quick
connect P/N:

P1015-64

(AWG 14/16)

Quick connect to

→

DIN rail adaptor
P/N: P1023-20

screw adaptor
P/N: P1015-18

Mounting bracket
P/N: P1023-6

DIN rail P/Ns:

017322005 (Steel)

C103PM (Al)

←

Ordering Table

0 ... 5 A
0 ... 10 A
0 ... 20 A
0 ... 50 A

Part NumberCurrent Range

TCSA5
TCSA10
TCSA20
TCSA50

See accessory pages for
specifications.

8.10 Low Voltage Products & Systems

1TRC 001 009 C0202

TCSA2B01 05.03.04

AC Current Transducer

TCSA Series
Loop Powered

Technical Data

Sensor

Type Toroid, through hole wiring, alternating current
(Monitored conductor must be properly insulated)
Monitored AC Current 0 ... 50 A
Ranges
4 factory calibrated ranges 0 ... 5A, 0 ... 10A, 0 ... 20A, or 0 ... 50A
Factory Calibration +/-0.5% of full scale
Maximum Allowable Current Steady – 50 A turns
Inrush – 300 A turns for 10 s
Repeat Accuracy +/-0.25% of full scale under fixed conditions
Response Time ≅ 300 ms
Burden ≤ 0.5 VA
Frequency 0 ... 20A / 21 ... 50A 20 ... 100 Hz / 30 ... 100 Hz
Temperature Coefficient +/-0.05%/°C

Output

Type: Series Connection Current directly proportional to monitored current
Range 4 ... 20 mA
Sensor Supply Voltage* 10 ... 30 V DC
Momentary Voltage 40 V DC for 1 m
Zero Adjust ≅ 3.75 ... 4.25 mA
Span Adjust 18 mA ... 22 mA
Adjustment Mini-screw, 25 turn potentiometer

Protection

Dielectric Breakdown ≥ 2000 V RMS terminals to mounting surface
Insulation Resistance ≥ 100 MΩ
Polarity Units are reverse polarity protected

Mechanical

Mounting Surface mount with one #10 (M5 x 0.8) screw
Package 2 x 2 x 1.75 in. (50.8 x 50.8 x 44.5 mm)
Termination 0.25 in. (6.35 mm) male quick connect terminals
Sensor Hole 0.36 in. (9.14 mm) for up to #4 AWG
(21.1 mm2) THHN wire

Environmental

Operating Temperature -30°C ... +60°C
Storage Temperature -40°C ... +85°C
Humidity 95% relative, non-condensing
Weight ≅ 2.4 oz (68 g)

Current

Sensors &

Monitors

*Minimum loop power supply voltage equals
the minimum sensor voltage 10 V DC plus the
voltage drop developed across all the other
loop devices at 20 mA.

Mechanical View

Inches (Millimeters)

TCSA2B01 05.03.04

Low Voltage Products & Systems 8.11

1TRC 001 009 C0202