Eaton CT-SP-3135-300-5 Current Sensor - UL Recognized
Part Number: CT-SP-3135-300-5
Quick Summary
The Eaton CT-SP-3135-300-5 current sensor provides a precise 5A secondary output for monitoring up to 300 A mains in electrical distribution panels. Engineers often face installation bottlenecks and accuracy drift when adding CT sensors into live systems; this split-core design speeds retrofits, minimizes panel downtime, and reduces wiring complexity. UL Recognized and CSA Certified ensure compliance across North American standards, reinforced by 1% accuracy and a compact 3.10 x 3.50 inch window. Built for panel metering and power management, it integrates with standard meters and control systems to deliver reliable load data, enabling better energy optimization and ongoing operational cost savings.
Product Information
Extended Description
CT-SP-3135-300-5 Eaton: Split Core CT 300A, 1% ACCY, 3.10 x 3.50 inch window
Product Name
Eaton 5A split core current sensor
Catalog Number
CT-SP-3135-300-5
UPC
786689884888
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
300 A
Quantity
1
Current transformer type
Split Core
Application current (primary rating)
300A
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 with a 300 A primary rating enables non-intrusive installation and fast retrofits in existing panels. This reduces commissioning time and minimizes service interruptions, delivering reliable current data where it matters most. The 5 A secondary output coupled with 1% accuracy provides precise metering for energy management systems, improving billing accuracy and enabling tighter control of loads in automation environments. With dimensions of 7 in length, 6.1 in width, and 1.25 in height, the sensor fits typical enclosure footprints while maintaining robust mechanical strength for industrial use. UL Recognized and CSA Certified, it meets critical safety standards, helping you stay compliant during audits and inspections. Compatibility with standard meters and Eaton control interfaces simplifies integration, lowering total cost of ownership and accelerating ROIs in power management projects.
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FAQs
Choose a single conductor to pass through the split-core window, align the sensor so the opening faces the load direction, and mount within reach of the meter or control panel. The unit’s 7 in length and 3.10 x 3.50 inch window fit typical enclosures, and UL CSA certifications confirm safety for industrial environments.
The CT-SP-3135-300-5 uses a current transformer ratio that yields 5 A on the secondary when primary current reaches the rated 300 A. This 300:5 ratio, combined with 1% accuracy, provides precise measurements for metering and monitoring without burdening the circuit under test.
Yes. Its split-core design enables non-invasive installation in panel metering and power management applications. The 5 A secondary output feeds standard metering electronics, delivering reliable load data essential for energy optimization, demand management, and regulatory reporting in automation environments.
The CT-SP-3135-300-5 is UL Recognized and CSA Certified, confirming compliance with recognized safety and performance standards. These certifications support regulatory audits, reduce risk in critical power applications, and facilitate procurement in North American markets.
The non-intrusive split-core design minimizes maintenance downtime and reduces upgrade risk in live systems. With 1% accuracy and durable construction, you gain stable metering data, enabling better energy optimization and faster ROI through improved billable load management and reduced commissioning costs.