SCT-1250-150

Current Sensors Overview

The Magnelab SCT-1250-150 is a split-core AC current sensor designed for non-intrusive installation on existing electrical wiring. It features a 1.25-inch internal diameter opening, allowing it to snap around conductors without disconnecting the circuit. The device transforms primary currents up to 800 amperes into a standardized 0.333-volt output signal. Specifically rated for 150 amperes with a 150:0.333 ratio, this unidirectional module provides accurate current sensing for power monitoring applications.

Current Sensors Feature Summary

• Split-core design enables installation around existing conductors without circuit interruption
• Transforms high AC currents into a low-voltage 0.333V output signal
• Unidirectional sensing capability for single-pass measurement
• Standardized voltage output compatible with various metering and conditioning circuits

Current Sensors Applications

• Power monitoring systems in commercial and industrial facilities
• Energy management and load balancing applications
• Electrical panel upgrades where wiring cannot be disconnected
• Integration with data acquisition systems for real-time current tracking

Current Sensors Procurement Notes

Verify that the required primary current rating does not exceed the 800A maximum limit of the SCT-1250 series housing. Confirm that the application requires a unidirectional sensor, as this model is not suitable for bidirectional flow measurement. Ensure the conductor size fits within the 1.25-inch opening. Cross-reference the 0.333V output requirement with the input specifications of the connected metering or conditioning equipment to guarantee signal compatibility.

Current Sensors Selection Notes

Select this component when non-invasive installation on existing busbars or cables is mandatory. The SCT-1250-150 is appropriate for AC current monitoring where a standard 0.333V output simplifies interface design with energy meters. Consider the physical dimensions of the split core against available clearance around the conductor. This specific variant is chosen for its 150A nominal rating, providing adequate headroom above typical operating loads while maintaining accuracy within the specified range.

Current Sensors Part Context

The SCT-1250-150 belongs to the Magnelab SCT-1250 series of split-core current transformers. This family is widely used in power quality and energy monitoring solutions due to its ease of retrofitting onto live circuits. The series offers multiple current ratings sharing the same mechanical form factor and 0.333V output standard, allowing designers to select the appropriate ampere rating while maintaining consistent interface requirements across different system configurations.

Current Sensors Replacement Considerations

Direct replacements must match the 1.25-inch opening, 0.333V output, and unidirectional nature. Verify that any substitute part supports the specific 150A rating or higher if future expansion is anticipated. Ensure the replacement maintains the same phase shift characteristics if precision power factor calculation is required. Consult manufacturer cross-reference lists for equivalent split-core sensors from other suppliers.