277 Lighting Ballast Wiring. Web with this configuration, a 277vac supply is derived, (480vac ÷√3=277vac) measuring from one of the phases to the neutral connection. Grounding a ballast is very important.
Put your volt tick away and use a real meter. Web listed below is the typical workflow followed to mount and wire an ecosystem ballast. Then test if you actually have power (277 volts).
Make sure the circuit breaker to all components is turned off before. Web refer to the wiring diagrams on the back page for the appropriate wiring of lamp (s) and ballast. Lighting ,.3 amps per.277v ballast.
Install in accordance with the national. Then test if you actually have power (277 volts). The emergency ballast requires an unswitched a.c.
Gingers 1139r 6 ft l solid brass straight shower r. So i thought i had a couple bad ballasts, i didn't. Power sentry emergency fluorescent ballast 120 to 277v ac 1 2 bulbs supported 800 1500 lm.
Web oct 20, 2008. Web listed below is the typical workflow followed to mount and wire an ecosystem ballast. Grounding is usually automatic if the light fixture is grounded properly.
So, when a ballast is rated 120~277volts such as on those atlas t5 high bay lights. The emergency ballast and a.c. When at all possible turn the power off.
