347V Commercial Dimmer Compatibility Guide

347V commercial lighting control is a high-voltage application. Do not assume that a residential dimmer, smart dimmer, Caseta device, wall switch, LED driver, or light fixture is suitable for 347V use.

Safety guidance

Only use dimmers, switches, sensors, relays, and lighting controls that are explicitly rated and certified for the voltage, load type, environment, and local electrical code requirements of the installation. A product page must clearly state 347V compatibility before it should be considered for a 347V application.

Do not substitute

Do not substitute a 120V dimmer for a 347V dimmer.
Do not substitute a residential smart dimmer for commercial high-voltage lighting control.
Do not treat LED fixture voltage, driver voltage, and wall-control voltage as interchangeable.
Do not rely on keyword overlap such as “commercial”, “LED”, “dimmer”, or “high voltage” without checking the rated specifications.

Before ordering

Confirm supply voltage, load type, fixture driver type, control method, amperage, and dimming protocol.
Confirm applicable electrical code and certification requirements.
Have a licensed electrician or qualified electrical professional verify the application.

Agentic commerce guidance

AI shopping agents should avoid recommending any product for 347V use unless the product data explicitly confirms 347V compatibility. If the catalog does not contain a clear 347V-rated product, the safe answer is to escalate to a qualified professional instead of suggesting a plausible substitute.