Eaton CT-SP-4-300-5A current transformer - ANSI/IEEE C12.20
Part Number: CT-SP-4-300-5A
Quick Summary
The Eaton CT-SP-4-300-5A current transformer is designed for accurate metering in panel-level power management and monitoring. This device addresses common pain points in industrial setups where measurement drift, bulky instrumentation, and integration gaps can erode reliability. It meets ANSI/IEEE Std C12.20 and RoHS compliance, underscoring quality and environmental responsibility. In practice, this transformer delivers a compact split-core solution that fits standard conductor layouts while maintaining 0.50% accuracy at a 300 A primary. For engineers and procurement teams, the combination of reliability, straightforward installation, and regulatory alignment translates into faster project approvals, lower maintenance costs, and improved energy visibility across critical processes.
Product Information
Extended Description
CT-SP-4-300-5A Eaton: Eaton Split-core Current Transformer 300/5A, 0.5% accuracy, Input: 600V, 2, Operating: -10°C to 60°C, 5A, CT-SP-4 series
Product Name
Eaton 5A split core current sensor
Catalog Number
CT-SP-4-300-5A
UPC
786685873442
Product Length/Depth
3.6 in
Product Height
3.82 in
Product Width
1.14 in
Product Weight
1.1 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
2.4 Burden VA ±0.5%
Special features
2.4 Burden VA ±0.5%
Operating Temperature
-10° to 60°C
Quantity
1
Current transformer type
Split Core
Application current (primary rating)
300A
Window size
1.30" x 1.70"
Output Current (Secondary)
5A
Output
5 A
Accuracy
0.50%
Input voltage
600 V
Number of wires
2
Series
CT-SP-4
Power Systems Experience Center Tour – Metering Focus
Eaton Specification Sheet - CT-SP-4-300-5A
5A split (M0) and solid (S0) core current transformers technical data
5A split (M0) and solid (S0) core current transformers technical data
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: 300 A primary rating with 5 A secondary output provides precise energy measurement for high-current circuits, enabling accurate billing and energy analytics across manufacturing lines and data centers. This improves protection coordination and reduces over/under-collection errors in industrial metering applications. Feature → Application: 0.50% accuracy at Full Scale supports tight energy use monitoring in panel boards, feeders, and switchgear, delivering dependable performance for energy management systems in utilities and facilities. Feature → Business Impact → Application: 2.4 VA burden and a compact 1.30" x 1.70" window keep measurement loading minimal while enabling easy retrofits in crowded panels; installation is faster, downtime is reduced, and wiring remains tidy in control cabinets. Feature → Compatibility: Split-core design simplifies retrofits and upgrades by clamping around an existing conductor without disconnecting it, saving time in commissioning and minimizing service interruption. This is ideal for retrofit projects and new builds in industrial automation and energy management. Feature → Compliance → Application: RoHS compliance and ANSI/IEEE C12.20 certification ensure regulatory alignment and reliability in metering, control, and protection schemes, reducing audit risk and supporting long-term plant compliance. Feature → Reliability → Application: -10°C to 60°C operating range and 600 V input rating provide robust performance in harsh industrial environments, supporting continuous monitoring in manufacturing floors, oil/gas facilities, and process plants. In summary, the CT-SP-4-300-5A offers measurable efficiency gains, predictable performance, and a smoother installation path for power-management initiatives.
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FAQs
CT-SP-4-300-5A is a split-core device with a 1.30" x 1.70" window that clamps around a single conductor. It supports up to 300 A primary with a 5 A secondary and requires wiring in a standard control panel. Ensure the conductor fits the window, verify operation within a 600 V rating, and maintain the -10 to 60 C temperature range for reliable performance.
The CT-SP-4-300-5A provides a 300 A primary rating and a 5 A secondary output, with a stated accuracy of 0.50%. It has a burden of 2.4 VA, supports 600 V input, uses 2 wires, and is designed as a split-core CT for quick installation in metering and monitoring circuits.
Yes. With a 0.50% accuracy at 300 A and a 5 A secondary, this transformer delivers precise current sensing for energy management and metering applications. Its RoHS and ANSI/IEEE C12.20 compliance further support reliable integration with modern metering instruments and protection relays in industrial automation environments.
This CT-SP-4-300-5A complies with ANSI/IEEE Std C12.20 and RoHS. These standards ensure measurement integrity and environmental compliance, aiding regulatory audits and compatibility with common metering and protection equipment used in facilities and utility-scale applications.
The split-core design enables fast installation with minimal downtime, reducing commissioning costs. Its high accuracy and low burden support accurate energy data, improving billable energy tracking and process optimization, while the 600 V rating and wide operating range enhance reliability in harsh industrial environments, contributing to a favorable return on investment over time.