These Hubbell 3 phase testers help electricians, technicians, and event crews check 3-phase outlet wiring faster. Instead of reading measurements, users can rely on LED output to identify the circuit state immediately. As a result, these testers work well for troubleshooting in entertainment, event, and portable power environments.
In addition, every model carries UL 1436 listing and offers multiple configuration options for different outlet styles.
FAQ
- What is a 3 phase tester used for?
A 3 phase tester helps users quickly identify mis-wiring or circuit-condition issues in a 3-phase outlet. - How does this tester show the circuit condition?
It uses LED output to show the state of the circuit as soon as the tester is plugged in. - Do I need to interpret voltage readings?
No. - Where do these testers work best?
They work especially well in dark and difficult-to-reach spaces. - Which configurations are available?
L21-20, L21-30, L5-20, L14-30, L7-20, L6-20, and L6-30. - Are these testers UL listed?
Yes, all are UL 1436 listed.








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