Eaton CT-SP-5-400-5A Split Core Current Sensor - 0.6%
Part Number: CT-SP-5-400-5A
Quick Summary
The Eaton CT-SP-5-400-5A split-core current sensor enables precise panel metering. Engineers often grapple with limited installation space, drifting readings, and burdens that complicate retrofits. It carries ANSI/IEEE Std C12.20 certification and RoHS compliance, ensuring regulatory alignment and reliable performance in demanding environments. With a compact footprint and a robust 600 V rating, it supports safe, scalable monitoring across distributed power systems. This combination delivers measurable business value through improved accuracy, faster commissioning, and lower total cost of ownership.
Product Information
Extended Description
CT-SP-5-400-5A Eaton: Eaton Split-core Current Transformer 400/5A, 0.6% accuracy, Input: 600V, 2, Operating: -10°C to 60°C, 5A, CT-SP-5 series
Product Name
Eaton 5A split core current sensor
Catalog Number
CT-SP-5-400-5A
UPC
786685873473
Product Length/Depth
4.37 in
Product Height
5.83 in
Product Width
1.24 in
Product Weight
1.7 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Compliances
RoHS Compliant
Certifications
ANSI/IEEE Std C12.20
Catalog Notes
2.25 Burden VA ±0.5%, 0.6 Class
Special features
2.25 Burden VA ±0.5%, 0.6 Class
Operating Temperature
-10° to 60°C
Quantity
1
Current transformer type
Split Core
Application current (primary rating)
400A
Window size
3.50" x 2.00"
Output Current (Secondary)
5A
Output
5 A
Accuracy
0.60%
Input voltage
600 V
Number of wires
2
Series
CT-SP-5
Power Systems Experience Center Tour – Metering Focus
Eaton Specification Sheet - CT-SP-5-400-5A
5A split core current transformers (CT-SP) technical data
5A split core current transformers (CT-SP) technical data
Feature → Business Impact → Application: The CT-SP-5-400-5A uses a split-core design with a 5A secondary output, delivering accurate measurements with a stated 0.60% accuracy and a 2.25 VA burden. This enables precise energy metering and protection coordination without disconnecting the circuit, reducing installation time and downtime in industrial control panels. Application: Submetering, energy monitoring, and protection schemes in switchgear and panelboards benefit from non-invasive retrofits and reliable data for KPI reporting.Feature → Business Impact → Application: Primary rating of 400A paired with a 3.50" x 2.00" window size and a compact overall footprint (4.37" L × 5.83" H × 1.24" W) allow installation in tight spaces and retrofit projects. Impact: Space-efficient sensing with easier wiring and faster commissioning, lowering field labor costs. Application: Retrofit projects in limited-access electrical rooms and crowded control panels.Feature → Business Impact → Application: 600 V input rating, -10°C to 60°C operating range, and RoHS/ANSI certification provide rugged reliability in harsh environments while meeting regulatory requirements. Impact: Long-term operational stability and reduced compliance risk across industrial facilities. Application: Industrial automation, OEM panel building, and energy management systems in commercial and manufacturing settings.Feature → Business Impact → Application: 2-wire, 5A secondary output with standardized CT-SP-5 series compatibility simplifies calibration and compatibility with multiple meters and relays. Impact: Streamlined procurement and consistent measurement data across devices. Application: Metering, power quality monitoring, and protective relays in distributed power architectures.Feature → Business Impact → Application: Eaton warranty policy of one year from installation or eighteen months from shipment provides post-sale support and risk mitigation. Impact: Clear maintenance expectations and reduced total-cost-of-ownership for engineering teams. Application: System integrators and end users requiring predictable support timelines.
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FAQs
To install the CT-SP-5-400-5A, open the panel, locate a suitable conductor for the primary, and thread it through the 3.50" x 2.00" window. Connect the two output wires to your metering or protection device, ensuring correct orientation. Close the core to engage the split-core mechanism and verify a secure fit. No full circuit disconnect is required, minimizing downtime.
The CT-SP-5-400-5A provides a rated accuracy of 0.60% and a burden of 2.25 VA ±0.5%. This combination supports precise energy measurement with manageable loading on the secondary, enabling reliable readings for metering and protection without significant phase shift or voltage drop in typical panel applications.
Yes. The CT-SP-5-400-5A is rated for input voltages up to 600 V and operates from -10°C to 60°C. It is RoHS compliant and carries ANSI/IEEE Std C12.20 certification, making it suitable for industrial and commercial power distribution environments where safety and regulatory alignment are essential.
This sensor is RoHS compliant and certified to ANSI/IEEE Std C12.20 for measurement accuracy and safety. These certifications support regulatory compliance in many regions and help ensure reliable performance in control panels, submetering, and energy management applications.
The CT-SP-5-400-5A carries Eaton's warranty policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first. This coverage provides post-sale support for manufacturing defects and helps manage maintenance planning for critical energy monitoring systems.