Eaton CT-SP-3163-3500-5 Current Sensor - CSA UL Recognized
Part Number: CT-SP-3163-3500-5
Quick Summary
The Eaton CT-SP-3163-3500-5 current sensor provides accurate 5A secondary current sensing for mainline load monitoring in low-voltage distribution. Many engineers struggle with bulky transformers, gradual drift, and retrofit downtime when updating metering and protection schemes. CSA Certified and UL Recognized approvals support compliance in North American panels and safer field operation. Designed for metering, energy management, and protection, it delivers reliable data fast for improved decision-making. By using a 3.15 x 6.30 inch window and a compact form factor, it enables faster installations in crowded panels, while the 9.72 inch length and 6.93 inch width help accommodate larger conductors. This combination reduces project risk and shortens commissioning timelines for engineers.
Product Information
Extended Description
CT-SP-3163-3500-5 Eaton: Split Core CT 3500A, .3% ACCY, 3.15 x 6.30 inch window
Product Name
Eaton 5A split core current sensor
Catalog Number
CT-SP-3163-3500-5
UPC
786689884819
Product Length/Depth
9.72 in
Product Height
2.76 in
Product Width
6.93 in
Product Weight
1.5 lb
Certifications
CSA Certified UL Recognized
Amperage Rating
3500A
Quantity
1
Current transformer type
Split Core
Application current (primary rating)
3500A
Output Current (Secondary)
5A
Power Systems Experience Center Tour – Metering Focus
5A split core current transformers (CT-SP) technical data
5A split core current transformers (CT-SP) technical data
The CT-SP-3163-3500-5 employs a split-core current transformer design that enables rapid retrofits without disconnecting feeders, reducing field downtime and speeding commissioning in existing panel layouts. For engineers focused on panel metering and energy management, this is a practical upgrade that minimizes disruption while delivering precise load data. With a 3500A primary rating and 5A secondary output, the sensor provides scalable measurement for large feeders and motor circuits, delivering measurable improvements in billing accuracy and demand management. The device’s 0.3% accuracy ensures energy data integrity across metering and protection relays, supporting reliable energy dashboards and compliance reporting. Its compatibility with common meters and protection relays simplifies integration, lowering signal conditioning needs and enabling faster deployment in new builds and retrofits. The 3.15 x 6.30 inch window and overall footprint of 9.72 x 6.93 x 2.76 inches are designed for crowded enclosures, enabling easier installation and service access in control cabinets. Certifications (CSA Certified and UL Recognized) reduce risk during procurement and commissioning, reinforcing safety standards. Eaton provides accessible data sheets and installation resources to support design validation and on-site setup, helping teams deliver on-time project outcomes.
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FAQs
Yes. The CT-SP-3163-3500-5 is a split-core current transformer designed for retrofit in standard low-voltage panels. You clamp around the main conductor through a 3.15 x 6.30 inch window—no disconnection required. It supports up to 3500 A primary with a 5 A secondary, and its compact 9.72 x 6.93 x 2.76 inch footprint fits crowded enclosures.
Key specs include a 3500 A primary rating and a 5 A secondary output, with an accuracy of 0.3%. These specifications deliver precise current measurement suitable for metering, protection relays, and energy dashboards, while the split-core design reduces installation time and minimizes field disturbance during commissioning.
Ideal for motor feeders, large feeders, and energy management in industrial facilities, the CT-SP-3163-3500-5 supports accurate monitoring for energy accounting, demand management, and power distribution control. It is particularly valuable in retrofit projects where minimizing downtime is essential and in new builds requiring reliable high-current sensing.
The sensor carries CSA Certified and UL Recognized approvals, supporting compliance with North American electrical codes and procurement standards. These certifications reduce validation time with customers and auditors, improve safety assurance in cabinets and panels, and aid in supplier qualification for regulated industrial environments.
Technical data sheets and resources are available from Eaton, including CT-SP series PDFs, application notes, and installation guidance. You can also view the Power Systems Experience Center video focused on metering. Access to documentation speeds design validation, simplifies installation planning, and supports quicker, reliable commissioning.