ACCS-420 AC Current Sensor, 4-20mA Output

ACCS-420 AC Current Sensor, 4-20mA Output

Loop Powered

Additional information

Weight 0.353 kg
Dimensions 12.3 × 10.8 × 3.7 cm
Header Selectable Current Range

100A / 150A / 200A (ACCS-420)
10A / 20A / 50A (ACCS-420-L)

SKU: ACCS-420 Category: Tags: ,

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What it does

Clips around a cable to measure HIGH AC current. Outputs a 4-20mA signal.

The ACCS-420 is a loop powered AC current sensor that converts and isolates a high current AC signal into an industry standard 4–20mA DC signal. It can be used to monitor AC current loads in switchboards, motors and machines, and is principally used for machine protection and energy monitoring.



Power supply: 15-36V DC

General Specifications

Sensor type: Current transformer

Header selectable current range: ACCS-420: 100/150/200A. ACCS-420-L: 10/20/50A

Accuracy: 1% of full scale

Response time: 250ms (10-90%)

AC to DC conversion technique: Averaging scaled in RMS

Analog Output (Retransmission)

Analog output type: 4-20mA, representing 0-100% of full scale input range


Casing: Split core hinged type, screw mounting case, ABS material

Dimensions (H x W x D): 2.60″ x 3.94″ x 1.26″ (66x100x32mm)

Connectors barrier strip: UL 94 V-O rated

Environmental Conditions

Operating temperature: 14 to 122°F (-10 to 50°C)

Operating humidity: 0-95% non condensing


ACCS-420 Manual 18V01, 26-Nov-2018 | (151 KB)

Order Codes


Current Range
ACCS-420 100A / 150A / 200A (standard configuration)
ACCS-420-L 10A / 20A / 50A

All prices are in US Dollars. For pricing in other currencies, please contact us.