Schneider Electric Micrologic Trip Unit
The Micrologic trip unit is an electronic module for Schneider Electric Masterpact circuit breakers that provides adjustable protection settings for overcurrent and short circuits. It falls under HTS 8538.90.81.20 as a specialized part designed solely for use with automatic circuit breakers in heading 8536. This component integrates microprocessor-based monitoring and tripping functions essential for modern breaker operation.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If also suitable for use with heading 8535 or 8537 apparatus
Parts compatible with multiple apparatus types (control panels, relays) fall under the broader 8538.90.30 rather than breaker-specific subheading
If imported as complete accessory set with the breaker
Accessories imported and presented with the circuit breaker itself are often classified under the breaker heading 8536 rather than separate parts
If for aftermarket generic electronic modules without brand-specific compatibility
Non-specialized electronic integrated circuits may shift to Chapter 85 heading 8542 if not proven principally for circuit breaker use
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Import Tips & Compliance
• Verify the part is explicitly designed for circuit breakers of heading 8536 via manufacturer specs to avoid reclassification as general electrical parts
• Include detailed technical datasheets and compatibility certificates in documentation to prove 'sole or principal use' with automatic circuit breakers
Related Products under HTS 8538.90.81.20
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Square D Masterpact Micrologic 5.0 A Trip System
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LS Electric Susol TRIU Trip Unit
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