HO 250-P/SP33-1106

Current Sensors Overview

The HO 250-P/SP33-1106 is an open-loop Hall effect current transducer manufactured by LEM USA Inc. It features a primary nominal current (Ipn) of 250 A and supports a measuring range up to 2.5 times Ipn. The device utilizes a panel mount configuration with a compact design measuring 22 mm in width, 45 mm in length, and 33 mm in height. It provides high accuracy rated at 1% of Ipn at 25°C and 4.6% of Ipn at 105°C. The sensor exhibits low offset and gain drift characteristics suitable for precise industrial applications.

Current Sensors Feature Summary

• Open-loop Hall effect technology for accurate current measurement
• Compact physical design optimized for space-constrained installations
• High accuracy performance maintained across wide temperature ranges

Current Sensors Applications

• Industrial power supply systems
• Motor drive control circuits
• Inverter and converter monitoring

Current Sensors Procurement Notes

Verify the specific suffix SP33-1106 against official LEM documentation to confirm pinout and mounting specifications. Ensure the procurement channel sources genuine components directly from authorized distributors or LEM to guarantee authenticity. Cross-reference the part number with the latest datasheet revisions to confirm availability status and any potential obsolescence notices before finalizing orders.

Current Sensors Selection Notes

Select this model when a 250 A nominal current rating is required for panel-mounted applications. Consider the 2.5x Ipn overload capability for systems experiencing transient current spikes. Evaluate the thermal environment to ensure the 105°C accuracy specification meets system requirements. Compare physical dimensions against available panel space to verify fitment within the designated enclosure area.

Current Sensors Part Context

This component belongs to the HOxx-S series of open-loop Hall effect sensors from LEM. The series is characterized by small form factors and high precision. The HO 250-P variant specifically denotes the panel mount version within this family, distinguishing it from PCB-mount alternatives like the HO 250-S. This series targets industrial applications requiring reliable DC and AC current sensing.

Current Sensors Replacement Considerations

The HO 250-S/SP33-1106 is a documented alternative within the same product line, offering identical electrical specifications but utilizing a PCB mount configuration instead of panel mounting. Verify mechanical compatibility and mounting hardware differences when substituting between these variants.