MFO404005A

Current Sense Transformers Overview

The Omega MFO404005A is an AC current transformer designed for low voltage applications, specifically intended for use with ammeters and wattmeters. It features a split-core design with a 41.5 mm window to accommodate conductors without breaking the circuit. The device operates at a primary current of 400 A and provides a secondary nominal current of 5 A. It has a burden rating of 5 VA and supports frequency ranges of 50 Hz and 60 Hz. The unit is RoHS compliant and carries CE certification.

Current Sense Transformers Feature Summary

• Split-core construction allows for easy installation around existing busbars or cables
• Designed for accurate current sensing in low voltage measurement systems
• Compatible with standard panel meters including ammeters and wattmeters

Current Sense Transformers Applications

• Low voltage ammeter integration
• Wattmeter current input sensing
• Electrical panel monitoring systems

Current Sense Transformers Procurement Notes

Verify that the required primary current matches the 400 A specification and that the conductor size fits within the 41.5 mm window. Confirm compatibility with the connected meter's 5 A secondary input and 5 VA burden requirements. Ensure the operating frequency aligns with the 50/60 Hz range. Check for CE marking compliance if required by local regulations.

Current Sense Transformers Selection Notes

Select this model when a non-invasive current measurement solution is needed for circuits up to 400 A. The split-core design is ideal for retrofitting or temporary measurements where disconnecting power is not feasible. Ensure the application involves low voltage systems as specified. Consider the physical dimensions of the window relative to the cable diameter before ordering.

Current Sense Transformers Part Context

This component belongs to the Omega MFO series of current transformers. These devices are engineered for industrial and commercial electrical monitoring. The MFO series typically offers various window sizes and current ratios to suit different conductor diameters and load requirements. This specific part number denotes the 400:5 ratio variant.

Current Sense Transformers Replacement Considerations

Direct substitutes must match the 400:5 ratio, 41.5 mm window, and 5 VA burden. Verify interface compatibility with existing meters. Cross-reference with other manufacturers' split-core current transformers offering identical electrical specifications and physical dimensions.