Harmonic Filters

Active harmonic filters provide true harmonic current cancellation by monitoring nonlinear load currents and generating matching current waveforms and injecting them into the bus. The filters also produce leading VAR currents to help improve power factor. They are easily paralleled and can be sized to comply with IEEE's Standard 519-1992 under any load condition.
ASI Robicon
New Kensington, Pa.

Circle 201

Transfer Switch Cabinet

The multiple transfer switch cabinet is designed for multi-tenant tower site owners. The cabinet combines up to six automatic transfer switches (with individual controllers) and an emergency distribution panel. A site load center with transient voltage surge suppression is optional. It also features a NEMA 3R enclosure, pad- or wall-mounting, and easy compatibility with multi-gang meter panels.
CAT, A Div. of ERG Resources York, S.C.
Circle 202

VRLA Battery

The Sprinter S12V500 is a sealed 12V, valve-regulated stationary battery with a capacity of 500W per cell for use in facilities with medium and large power systems. It may also be used to provide emergency power for essential industrial operations. The battery features a diamond-side wall design that provides structural integrity in higher operating temperatures.
Exide Technologies
Lombard, Ill.

Circle 205

Outdoor Power Node

The NexGen Seven outdoor power node provides medium- to low-amperage telecommunications sites with outside plant power, DC distribution, battery backup, and remote monitoring and alarm features in a front-access, NEMA 4X enclosure. These systems are designed to deliver up to 600A of regulated +24V or 390A of -48VDC power with 4 hr of battery backup.
TDI Transistor Devices
Hackettstown, N.J.

Circle 211