OPTOEMU-ACT-1250-250
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OPTOEMU-ACT-1250-250

$92.50 (USA and Canada only)

Availability: In stock
Current Transformer, Split Core, 250 A, 0.333 VAC, 1.83 x 1.25 inch (4.65 x 3.18 cm) Inner Opening

Production Specification

The OPTOEMU-ACT-1250-250 split-core current transformer (CT) from Continental Control Systems offers an easy, safe, and inexpensive method for monitoring electrical energy usage.

Ideal for retrofit applications, the split core makes it possible to attach the CT without disturbing existing wiring. This CT swings open for one-handed operation. Just open it, slip it over the wire, and snap the CT closed. Once assembled, the CT has no exposed metal parts.

The 0.333 VAC output of this CT is low, making it much more safe to install and use than CTs with current secondaries. It is also less expensive.

ACT series CTs comply with the linearity and accuracy requirements of IEEE/ANSI C57.13 class 1.2 for tenant submetering and billing. They are UL Listed, certified by Underwriters Laboratory (UL) to meet the new 2017 NEC code requirement that CTs installed in the field must be UL 2808 Listed under category code XOBA.

This CT is recommended for use with the following Opto 22 products:
  • groov EPIC® power monitoring analog input module, part number GRV-IVAPM-3 
  • groov RIO® energy monitoring edge I/O module, part number GRV-R7-I1VAPM-3
  • SNAP power monitoring analog input module, part number SNAP-AIPM-3V 
  • OptoEMU Sensor™ power monitoring appliance, part number OPTOEMU-SNR-3V 
Determine the maximum current you need to measure and choose a CT with a primary current that handles both wire size and maximum current. Other CTs available:
Specification  OPTOEMU-ACT-1250-250   OPTOEMU-ACT-1250-400   OPTOEMU-ACT-1250-600 
Accuracy 0.75% 0.75% 0.75%
Rated Amps 250 amps 400 amps 600 amps
Accuracy Class IEEE/ANSI C57.13, Class 1.2 IEEE/ANSI C57.13, Class 1.2 IEEE/ANSI C57.13, Class 1.2
CE Accuracy IEC 60044-1, Class 1.0 IEC 60044-1, Class 1.0 IEC 60044-1, Class 1.0
Standard Lead Length 8 ft (2.4 m), 18 AWG 8 ft (2.4 m), 18 AWG 8 ft (2.4 m), 18 AWG
Phase Angle ± 0.50 degrees ± 0.50 degrees ± 0.50 degrees
Output Options 0.333 VAC 0.333 VAC 0.333 VAC
Operating Temperature −30°C to 75°C −30°C to 75°C −30°C to 75°C
Line Frequency 50/60 Hz 50/60 Hz 50/60 Hz
CE Safety CE CE CE
RoHS Compliance Yes Yes Yes
UL USA UL Listed, XOBA,UL 2808 UL Listed, XOBA,UL 2808 UL Listed, XOBA,UL 2808
UL Canada UL Listed - XOBA7 UL Listed - XOBA7 UL Listed - XOBA7
Warranty* 5 years* 5 years* 5 years*
* Original manufacturer’s warranty applies. See https://ctlsys.com/warranty-and-return-policy/

Split-Core Current Transformers Data Sheet

Split-core current transformers (CTs) offer an easy, safe, and inexpensive method for monitoring electrical energy usage. This data sheet describes split-core CTs with a 0.333 VAC secondary.

These CTs are recommended for use with the following products:

Opto 22 RoHS 3 Statement of Compliance - Restriction of Hazardous Substances

This document is a statement of compliance with the EU Directive 2015/863/EU, Restriction of Hazardous Substances (RoHS 3). This document lists Opto 22 products that comply with the substance restrictions of the RoHS 3 directive.

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