Split Core Current Transformers Data Sheet
DATA SHEETForm 1938-211102PAGE 1SPLIT CORE CURRENTTRANSFORMERSFeatures Split-Core CurrentTransformer,ACT-0750 SeriesSplit core for easy installation; ideal for retrofitNo exposed metal parts when assembled0.333 VAC output at rated currentSafer to install and use than CTs with a current secondaryUL Listed, CE recognized, and RoHS compliantDESCRIPTIONThese split-core current transformers (CTs) from Continental ControlSystems offer an easy, safe, and inexpensive method for monitoringelectrical energy usage.Split-Core CurrentTransformer,ACT-1250 SeriesIdeal for retrofit applications, the split core makes it possible to attachthe CT without disturbing existing wiring. Just open the CT, slip it overthe wire, and snap the CT closed. Once assembled, the CTs have noexposed metal parts.The 0.333 VAC output of these CTs is low, making them much moresafe to install and use than CTs with current secondaries. These CTs arealso less expensive.ACT series CTs are accurate to 0.75% from 1% to 120% of ratedprimary current. They also have exceptionally low phase angle error,which is essential for accurate power and energy measurements. ACTseries CTs comply with the linearity and accuracy requirements ofIEEE/ANSI C57.13 class 1.2 for tenant submetering and billing. Theyare UL Listed, certified by Underwriters Laboratory (UL) to meet thenew 2017 NEC code requirement that CTs installed in the field mustbe UL 2808 Listed under category code XOBA. groov RIO power monitoring edge I/O module, part numberGRV-R7-I1VAPM-3 (new product coming soon)SNAP power monitoring analog input module, part numberSNAP-AIPM-3VPart NumbersThese CTs swing open for one-handed operation. The 0750 has awindow opening of 0.75” x 0.75” for current measurements up to250 A. The 1250 has an oval-shaped window opening of 1.83” x 1.25”and is designed for loads up to 600 A.Each CT includes 8 ft (2.4 m), twisted-pair leads; the 0750 leads are22 AWG, and the 1250 leads are 18 AWG.PartDescriptionOPTOEMU-ACT-0750-050Current Transformer, Split Core, 50 A,0.333 VAC, 0.75 inch (1.91 cm) InnerDiameterOPTOEMU-ACT-0750-100Current Transformer, Split Core, 100 A,0.333 VAC, 0.75 inch (1.91 cm) InnerDiameterOPTOEMU-ACT-0750-250Current Transformer, Split Core, 250 A,0.333 VAC, 0.75 inch (1.91 cm) InnerDiameterOPTOEMU-ACT-1250-250Current Transformer, Split Core, 250 A,0.333 VAC, 1.83 x 1.25 inch(4.65 x 3.18 cm) Inner OpeningOPTOEMU-ACT-1250-400Current Transformer, Split Core, 400 A,0.333 VAC, 1.83 x 1.25 inch(4.65 x 3.18 cm) Inner OpeningOPTOEMU-ACT-1250-600Current Transformer, Split Core, 600 A,0.333 VAC, 1.83 x 1.25 inch(4.65 x 3.18 cm) Inner OpeningSee specifications and dimensions on the following pages.Monitoring EnergyThese split-core CTs are recommended for use with the followingOpto 22 products: groov EPIC power monitoring analog input module, part numberGRV-IVAPM-3OPTO 22 800-321-6786 1-951-695-3000 www.opto22.com sales@opto22.com 2010–2021 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
DATA SHEETForm 1938-211102PAGE 2 OptoEMU Sensor power monitoring appliance, part numberOPTOEMU-SNR-3VUse with groov EPIC and groov RIOThe groov EPIC power monitoring module (and the groov RIO powermonitoring module, when it is released) provide the most modern,efficient way to monitor AC voltage and current and use that datawhere it is needed. Both modules can monitor three-phase ACcurrent using a 0.333 VAC current transformer (CT) or a standardcurrent transformer.These modules provide voltage and current field inputs plus severalchannels of calculated data. If the module is part of a groov EPICsystem running a PAC Control strategy, strategy logic canautomatically perform additional calculations and respond to anyproblems that the module reports.More about groov EPICThe GRV-IVAPM-3 groov I/O module is part of the groov EPIC systemfor automation and industrial internet of things (IIoT) applications. Itoffers field inputs plus calculated channels for a total of 64 channels.The module mounts on a groov EPIC chassis with a groov EPICprocessor and other I/O modules. The processor includes software for: Control programming Configuring I/O, networking, and security Building a simple HMI for use on PCs and mobile devices Communicating data with company and cloud-based software,services, and devicesFor more information on the GRV-IVAPM-3, see the groov PowerMonitoring Module Data Sheet (form 2351).More about groov RIOThe groov RIO GRV-R7-I1VAPM-3 edge I/O power monitoringmodule is a small-footprint, standalone unit that can be used by itselfor as distributed I/O with a groov EPIC system.Designed for IIoT applications, it includes built-in security andsoftware to communicate data with other devices and software onpremises and in the cloud. groov RIO even offers power over Ethernet(PoE) for easy installation.For more information on the GRV-R7-I1VAPM-3, contact us.Use with SNAPThe SNAP I/O module, SNAP-AIPM-3V, monitors power from a3-phase load. The module measures voltage and current from eachphase. It then calculates watts and volt-amps for each phase plus truepower sums for all phases.Part of the SNAP PAC System, the SNAP-AIPM-3V mounts on a rackwith other analog, digital, and serial modules and an I/O processor.For more information, see the SNAP Power Monitoring Modules DataSheet, form 1453.Use with the OptoEMU SensorThe OptoEMU Sensor OPTOEMU-SNR-3V energy monitoring unit isan appliance that monitors the electrical energy used in your facilityand then uses your existing wired or wireless Ethernet network todeliver that data to online software applications. For moreinformation, see form 1936, the OptoEMU Sensor 3V Data Sheet.NOTE: The OptoEMU Sensor will be obsolete when current stock isdepleted.OPTO 22 800-321-6786 1-951-695-3000 www.opto22.com sales@opto22.com 2010–2021 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
DATA SHEETForm 1938-211102PAGE 3SPECIFICATIONS: ACT 0750 SERIESOPTOEMU-ACT-0750-050AccuracyRated AmpsAccuracy ClassCE AccuracyStandard Lead LengthPhase AngleOutput OptionsOperating TemperatureLine .75%0.75%0.75%50 amps100 amps250 ampsIEEE/ANSI C57.13, Class 1.2IEEE/ANSI C57.13, Class 1.2 IEEE/ANSI C57.13, Class 1.2IEC 60044-1, Class 1.0IEC 60044-1, Class 1.0IEC 60044-1, Class 1.08 ft (2.4 m), 22 AWG8 ft (2.4 m), 22 AWG8 ft (2.4 m), 22 AWG 0.50 degrees 0.50 degrees 0.50 degrees0.333 VAC0.333 VAC0.333 VAC 40 C to 80 C 40 C to 80 C 40 C to 80 C50/60 Hz50/60 Hz50/60 HzCE SafetyCECECERoHS ComplianceYesYesYesUL Listed, XOBA,UL 2808UL Listed, XOBA,UL 2808UL Listed, XOBA,UL 2808UL Listed - XOBA7UL Listed - XOBA7UL Listed - XOBA75 years*5 years*5 years*UL USAUL CanadaWarranty** Original manufacturer’s warranty applies. See ram courtesy of ContinentalControl Systems LLCINSTALLATION INSTRUCTIONSWARNING: Hazardous Voltages!Read and follow all installation instructions from the manufacturer,Continental Control Systems LLC:Accu-CT ACTL-0750 Split-core Current Transformer Installation GuideOPTO 22 800-321-6786 1-951-695-3000 www.opto22.com sales@opto22.com 2010–2021 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
DATA SHEETForm 1938-211102PAGE 4SPECIFICATIONS: ACT 1250 SERIESAccuracyRated AmpsAccuracy ClassCE AccuracyStandard Lead LengthPhase AngleOutput OptionsOperating TemperatureLine FrequencyCE SafetyRoHS ComplianceUL USAUL 0-400OPTOEMU-ACT-1250-6000.75%0.75%0.75%250 amps400 amps600 ampsIEEE/ANSI C57.13, Class 1.2IEEE/ANSI C57.13, Class 1.2IEEE/ANSI C57.13, Class 1.2IEC 60044-1, Class 1.0IEC 60044-1, Class 1.0IEC 60044-1, Class 1.08 ft (2.4 m), 18 AWG8 ft (2.4 m), 18 AWG8 ft (2.4 m), 18 AWG 0.50 degrees 0.50 degrees 0.50 degrees0.333 VAC0.333 VAC0.333 VAC 30 C to 75 C 30 C to 75 C 30 C to 75 C50/60 Hz50/60 Hz50/60 HzCECECEYesYesYesUL Listed, XOBA,UL 2808UL Listed, XOBA,UL 2808UL Listed, XOBA,UL 2808UL Listed - XOBA7UL Listed - XOBA7UL Listed - XOBA75 years*5 years*5 years** Original manufacturer’s warranty applies. See ram courtesy of ContinentalControl Systems LLCINSTALLATION INSTRUCTIONSWARNING: Hazardous Voltages!Read and follow all installation instructions from the manufacturer,Continental Control Systems LLC:Accu-CT ACTL-1250 Series Split-core Current Transformer Installation GuideOPTO 22 www.opto22.com43044 Business Park Dr. Temecula, CA 92590-3614SALES sales@opto22.com800-321-6786 1-951-695-3000SUPPORT support@opto22.com800-835-6786 1-951-695-3080 2010–2021 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.
More about Opto 22PRODUCTSgroov RIO Opto 22 develops and manufactures reliable, easy-to-use, openstandards-based hardware and software products. Industrialautomation, process control, building automation, industrialrefrigeration, remote monitoring, data acquisition, and industrialinternet of things (IIoT) applications worldwide all rely on Opto 22.groov RIO revolutionizes remote I/O by offering a single, compact,PoE-powered industrial package with web-based configuration,commissioning, and flow logic software built in, plus support formultiple OT and IT protocols.Standing alone, it meets the needs of small,variable I/O count applications, especiallythose that require data logging or datacommunications, commonly found in IIoTapplications. groov RIO can also be usedwith a Modbus/TCP master or as remote I/Ofor a groov EPIC system.groov EPIC SystemOpto 22’s groov Edge ProgrammableIndustrial Controller (EPIC) system gives youan industrially hardened system withguaranteed-for-life I/O, a flexible Linux based processor with gateway functions,and software for your automation and IIoTapplications.Older productsgroov EPIC I/Ogroov I/O connects locally to sensors andequipment with up to 24 channels on each I/O module. Moduleshave a spring-clamp terminal strip, integrated wireway, swing-awaycover, and LEDs indicating module health and discrete channel status.groov I/O is hot swappable, UL Hazardous Locations approved, andATEX compliant.groov EPIC ProcessorThe heart of the system is the groov EPIC processor. It handles a widerange of digital, analog, and serial functions for data collection,remote monitoring, process control, and discrete and hybridmanufacturing.In addition, the EPIC provides secure data communications amongphysical assets, control systems, software applications, and onlineservices, both on premises and in the cloud.Configuring and troubleshooting I/O and networking is easier withthe EPIC’s integrated high-resolution color touchscreen. Authorizedusers can manage the system locally on the touchscreen or on amonitor connected via the HDMI or USB ports.groov EPIC SoftwareSoftware included in the groov EPIC processor: PAC Control engine to run PAC Control and PAC Display CODESYS Runtime engine to run IEC61131-3 compliant programsbuilt with CODESYS Development System Optional access to the Linux operating system through a secureshell (SSH) to download and run custom applications groov View for building your own device-independent HMI,viewable on the touchscreen, PCs, and mobile devices Node-RED for creating simple logic flows from pre-built nodes Ignition Edge from Inductive Automation , with OPC-UA driversto Allen-Bradley , Siemens , and other control systems, and MQTTcommunications with Sparkplug for efficient IIoT data transferOPTO 22 www.opto22.com43044 Business Park Dr. Temecula, CA 92590-3614From solid state relays (our first products) toworld-famous G4 and SNAP I/O, to SNAP PACcontrollers, older Opto 22 products are stillsupported and still doing the job atthousands of installations worldwide. You can count on us to give youthe reliability and service you expect, now and in the future.QUALITYFounded in 1974, Opto 22 has established a worldwide reputation forhigh-quality products. All are made in the U.S.A. at our manufacturingfacility in Temecula, California.Because we test each product twice before it leaves our factory ratherthan testing a sample of each batch, we can afford to guarantee mostsolid-state relays and optically isolated I/O modules for life.FREE PRODUCT SUPPORTOpto 22’s California-based Product Support Group offers free,comprehensive technical support for Opto 22 products fromengineers with decades of training and experience. Support isavailable in English and Spanish by phone or email, Monday–Friday,7 a.m. to 5 p.m. PST.Support is always available on our website, including free onlinetraining at OptoU, how-to videos, user’s guides, the Opto 22KnowledgeBase, troubleshooting tips, and OptoForums. In addition,instructor-led, hands-on Premium Factory Training is available at ourTemecula, California headquarters, and you can register online.PURCHASING OPTO 22 PRODUCTSOpto 22 products are sold directly and through a worldwide networkof distributors, partners, and system integrators. For more information,contact Opto 22 headquarters at 800-321-6786 (toll-free in the U.S.and Canada) or 1-951-695-3000, or visit our website atwww.opto22.com.SALES sales@opto22.com800-321-6786 1-951-695-3000SUPPORT support@opto22.com800-835-6786 1-951-695-3080 2001–2020 Opto 22. All rights reserved. Dimensions and specifications are subject to change. Brand or product names used herein are trademarks or registered trademarks of their respective companies or organizations.Form 1335-200902
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
applications including generator step-up (GSU) transformers, substation step-down transformers, auto transformers, HVDC converter transformers, rectifier transformers, arc furnace transformers, railway traction transformers, shunt reactors, phase shifting transformers and r
7.8 Distribution transformers 707 7.9 Scott and Le Blanc connected transformers 729 7.10 Rectifier transformers 736 7.11 AC arc furnace transformers 739 7.12 Traction transformers 745 7.13 Generator neutral earthing transformers 750 7.14 Transformers for electrostatic precipitators 756 7.15 Series reactors 758 8 Transformer enquiries and .
2.5 MVA and a voltage up to 36 kV are referred to as distribution transformers; all transformers of higher ratings are classified as power transformers. 0.05-2.5 2.5-3000 .10-20 36 36-1500 36 Rated power Max. operating voltage [MVA] [kV] Oil distribution transformers GEAFOL-cast-resin transformers Power transformers 5/13- 5 .
Instrument . Transformers. 731. 736 737. 735. g. Multilin. 729 Digital Energy. Instrument Transformers. 738 739. 739 Instrument Transformers. Control Power Transformers 5kV to 38kV - Indoor type. Current Transducers 600 Volt Class IEC - Rated Instrument Transformers
SPLIT 2 SPLIT 3 SPLIT 4 7:08 MIN 22:09 MIN 7:30 MIN 29:39 MIN 7:11 MIN SPLIT 1 LAP 2 LAP 3 LAP 4 taking a Split While the timer is running, press SPLIT to take a split. The lap and split time for the lap you completed is displayed, and the watch begins timing the new lap. Individual lap data is saved when you save and reset the workout.
- IEC 61558 – Dry Power Transformers 1.3. Construction This dry type transformer is normally produced according to standards mentioned above. Upon request transformers can be manufactured according to other standards (e.g. standards on ship transformers, isolation transformers for medical use and protection transformers.
cation and for the testing of the transformers. – IEC 61378-1 (ed. 2.0): 2011, converter transformers, Part 1, Transformers for industrial applications – IEC 60076 series for power transformers and IEC 60076-11 for dry-type transformers – IEEE Std, C57.18.10-1998, IEEE Standard Practices and Requirements for Semiconductor Power Rectifier
Transformers (Dry-Type). CSA C9-M1981: Dry-Type Transformers. CSA C22.2 No. 66: Specialty Transformers. CSA 802-94: Maximum Losses for Distribution, Power and Dry-Type Transformers. NEMA TP-2: Standard Test Method for Measuring the Energy Consumption of Distribution Transformers. NEMA TP-3 Catalogue Product Name UL Standard 1 UL/cUL File Number .
