Advance IOPA3P32N35I ELE BALLAST (3) F32T8 120-277V I PACK

Yes. The IOPA3P32N35I is a universal voltage ballast rated 120-277 V, so the same part works on a 120V branch circuit in a small building or a 277V circuit in a commercial or industrial lighting panel. It runs at 50 to 60 Hz. That single-part flexibility is what makes it useful for MRO stock across mixed-voltage facilities.

It is built to operate three F32T8 lamps at 32 watts each. Instant start ballasts of this type are parallel-wired, so a lamp failure does not take the others out, but the ballast should be applied as the three-lamp unit it is rated for. If your fixture is a two-lamp troffer, order the two-lamp version of the ballast instead of leaving a socket pair unloaded.

No. This is a fixed-output, non-dimmable ballast. Putting it on a dimming control will not reduce light output and can damage the ballast or the control. For dimming you need a dedicated dimming ballast with the matching low-voltage control wiring. Occupancy sensors that simply switch the circuit on and off are a different matter, though instant start ballasts trade some lamp life for efficiency under frequent switching.

The IOPA3P32N35I carries BAA and ARRA compliance and its country of origin is the USA, which is what a federal, state, or institutional specification typically asks for on a lighting component. It is also EU RoHS and RoHS compliant. Those are the compliance points to reference on a submittal.

It holds both UL and CSA certification and is Class P thermally protected, meaning an internal cutout opens if the ballast overheats and resets once it cools. It is also CEC Listed, CEE Rated, and NEMA Premium. For an inspector or a facilities spec, those are the marks to cite.

The case measures 9.5 x 2.0 x 1.1 inches and weighs 0.8 lb, which is the standard small-can footprint most 2x4 and 1x4 fluorescent troffers are built around. Measure the ballast channel in your fixture before ordering, particularly on shallow strip fixtures and older wraparounds where the channel is tight.

Instant start, which is what this ballast uses, strikes the lamp with a high-voltage pulse and no cathode preheat. It is the most energy-efficient option and the right pick for spaces where lights stay on for long runs, such as offices, corridors, and warehouses. Programmed start preheats the cathodes first and is the better choice where lamps are switched frequently by occupancy sensors, because it protects lamp life. If your fixture is on a sensor that cycles many times a day, look at a programmed start ballast instead.

IOPA3P32N35I is Advance's I-pack configuration, the individually boxed version of the ballast. The bare-ballast bulk pack carries a different suffix. If you are buying a quantity for a relamp and retrofit project, the individual packaging is the one that survives being handed out to techs one at a time.