Eaton CT-SP-3135-1200-5 Current Sensor - UL Recognized
Part Number: CT-SP-3135-1200-5
Quick Summary
Eaton 5A split core current sensor provides non-invasive amperage measurement for panel metering and power management applications. This design lets technicians install sensors around live conductors without disconnecting power, reducing downtime and risk. UL Recognized and CSA Certified credentials reinforce safety and regulatory compliance for industrial and commercial deployments. With a 1200A primary rating and a 5A secondary output, it pairs with standard meters and energy dashboards to deliver accurate, real-time insights while minimizing wiring and space requirements. Its compact form supports faster commissioning, easier retrofits, and improved fault detection, delivering tangible efficiency gains and improved reliability for modern electrical systems.
Product Information
Extended Description
CT-SP-3135-1200-5 Eaton: Split Core CT 1200A, .6% ACCY, 3.10 x 3.50 inch window
Product Name
Eaton 5A split core current sensor
Catalog Number
CT-SP-3135-1200-5
UPC
786689884864
Product Length/Depth
7 in
Product Height
1.25 in
Product Width
6.1 in
Product Weight
1.5 lb
Certifications
UL Recognized CSA Certified
Amperage Rating
1200A
Quantity
1
Current transformer type
Split Core
Application current (primary rating)
1200A
Output Current (Secondary)
5A
Power Systems Experience Center Tour – Metering Focus
5A split (M0) and solid (S0) core current transformers technical data
5A split (M0) and solid (S0) core current transformers technical data
Split-core design enables non-invasive installation around existing conductors, reducing downtime and wiring complexity while preserving panel integrity. This translates to faster retrofits and safer commissioning in live systems, aligning with energy-management initiatives and metering upgrades. The device delivers a 1200A primary and 5A secondary output, providing compatibility with widely used meters and control systems, supporting streamlined data integration for SCADA and energy dashboards. Precision is a core benefit, with a 0.6% accuracy rating that supports compliant metering and protection coordination. The CT’s dimensions—7 in length, 6.1 in width, and 1.25 in height—along with a 3.10 x 3.50 inch window, enable reliable installation in standard panel enclosures and busbar layouts. Certifications from UL and CSA help ensure regulatory acceptance and safer field deployments. For technicians, Eaton’s technical data sheets (M0 split-core and S0 variants) provide clear guidance on installation, wiring, and calibration procedures, reducing risk and downtime during setup. The 5A output also simplifies integration with existing energy meters and monitoring equipment, reducing the need for additional interface hardware while delivering dependable data for energy analytics and demand management. In practice, this translates to measurable ROI through improved visibility, faster fault diagnosis, and more efficient power usage in industrial facilities and commercial buildings.
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FAQs
The CT-SP-3135-1200-5 uses a split-core design that opens around a conductor without disconnecting power. Fit the sensor around the target conductor, close the core, and route the 5A secondary leads to your metering or monitoring device. Verify orientation for accurate readings and secure all fasteners. This approach minimizes downtime and preserves panel integrity while enabling fast retrofits.
This model provides a 1200A primary rating and a 5A secondary current output, with an accuracy of 0.6%. It features a 7 inch overall length, a 6.1 inch width, and a 1.25 inch height with a 3.10 x 3.50 inch window for conductor passage. The device is UL Recognized and CSA Certified, supporting reliable, standards-compliant metering and protection.
Yes. The CT-SP-3135-1200-5 is designed for industrial power management and metering, delivering accurate current data from up to 1200A primary sources with a standard 5A secondary output. Its split-core design is ideal for retrofits in switchgear, panels, and feeders, while the 0.6% accuracy supports demanding energy audits, demand calculations, and real-time monitoring dashboards.
This current transformer is UL Recognized and CSA Certified, providing recognized safety and regulatory compliance for electrical installations. These credentials help with passing audits, ensuring safe operation in commercial and industrial environments, and facilitating procurement in strict regulatory contexts where certified components are required.
Eaton provides technical data sheets for the 5A split (M0) and solid (S0) core current transformers, which outline installation, wiring, calibration, and compatibility details. Use these datasheets to ensure correct CT sizing, wiring to meters or SCADA, and integration with energy-management systems. Access to these resources helps shorten commissioning, reduces rework, and supports consistent performance across facilities.