Delta NH-Plus Series Modular, three phase, 230VPower to build a lasting competitive advantage The Modulon NH Plus series is Deltas next generation UPS featuring high efficiency, hot swappable modular structure, and N+X redundancy. With its industry leading 94% high efficiency, the NH Plus series delivers remarkably low total cost of ownership in terms of both capital expense and operating expense. With N+X module and system redundancy to guarantee reliability and availability, the Modulon NH Plus