North American Product Classification System (NAPCS) Canada 2012 Version 1.0
- 381 - Electrical components
- 38123 - Switchgear, switchboards, relays, and industrial control apparatus
- 381233 - Fuses and high-voltage power distribution equipment
- 3812331 - High-voltage fuses
- 3812332 - High-voltage circuit breakers and switching or interrupting devices
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