APR 100 B420L

Current Sensors Overview

The APR 100 B420L is a unidirectional AC current transducer from the AP-B420L series by LEM. It features a selectable primary current rating of 50A, 75A, or 100A. The device provides galvanic isolation between the primary circuit and secondary output. It operates on a DC supply voltage of 12V or 24V. The unit supports spring terminal connections for secure wiring. It is designed for panel mounting or DIN rail installation. The operating temperature range spans from -20°C to 60°C. Maximum working frequency reaches 2000Hz with a minimum of 30Hz.

Current Sensors Feature Summary

• Selectable primary current ratings allow configuration for 50A, 75A, or 100A applications
• Galvanic isolation ensures safety between high-voltage primary circuits and low-voltage secondary outputs
• Flexible mounting options support both panel and standard DIN rail installations

Current Sensors Applications

• Electronic measurement of AC waveform currents
• Industrial drive systems requiring unidirectional current monitoring
• Power electronics equipment with isolated sensing needs

Current Sensors Procurement Notes

Verify the specific primary current setting (50A, 75A, or 100A) required for your application before ordering, as this model offers selectable ratings. Confirm that the 12V or 24V DC supply voltage matches your system design. Ensure the physical dimensions and mounting style are compatible with your enclosure or DIN rail setup. Check for compliance with UL 94-V0 and IEC 61010-1 standards if required for your region.

Current Sensors Selection Notes

Choose this transducer when precise AC current measurement with galvanic isolation is necessary. The selectable primary current feature provides flexibility for varying load requirements without changing hardware. Consider the 2000Hz maximum frequency capability for higher-frequency applications beyond standard power line frequencies. Verify the spring terminal type suits your wiring infrastructure.

Current Sensors Part Context

This component belongs to the AP-B420L series of AC current transducers manufactured by LEM USA Inc. The series is characterized by split-core designs suitable for electronic measurement of AC waveforms. These devices emphasize safety through galvanic isolation and offer versatile mounting configurations for industrial integration.

Current Sensors Replacement Considerations

AP 100 B420L serves as a direct functional equivalent within the same product family.