3-Phase Current Transformer

276B3-500

The Model 276B3-500 3-Phase Current Transformer provides essential current measurement capabilities for industrial and commercial power systems. Engineered for precision, it accurately monitors currents within a 50 to 1200 amp range, making it suitable for various load profiles. Its operational frequency range of 25 to 400Hz ensures compatibility with diverse electrical infrastructures. This unit is UL Recognized and CSA Certified, affirming its adherence to established safety and performance benchmarks. With an accuracy of ±1% at 60Hz for currents exceeding 100 amps, it supports reliable data collection for energy management and system diagnostics. The robust construction, featuring #8-32 brass stud secondary terminals, facilitates secure and long-term installations. Its 2.08 inch window diameter allows for straightforward integration into existing setups, providing a dependable solution for critical current sensing requirements.

Cur Transf 3Ph 500:5

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276b3-500

Specifications

Phase3-Phase
Current Monitoring Range50-1200 amps
Frequency Range25 - 400Hz
Secondary Terminals#8-32 brass stud
ApprovalUL Recognized
ApprovalCSA Certified
Accuracy (50-100 amp CTs)±2% at 60Hz
Accuracy (>100 amp CTs)±1% at 60Hz
Window Diameter2.08 in
Ratio500:5
Max VA for 1% accuracy5
Secondary Winding Resistance at 167° F.0643

FAQs

What current range does the 276B3-500 3-Phase Current Transformer support?
The 276B3-500 supports a current monitoring range of 50 to 1200 amps.
What is the accuracy specification for the 276B3-500?
For currents between 50-100 amps, accuracy is ±2% at 60Hz. For currents exceeding 100 amps, accuracy is ±1% at 60Hz.
What are the key approvals for the 276B3-500 Current Transformer?
The 276B3-500 is UL Recognized and CSA Certified, ensuring compliance with industry standards.