Introduction 13

Helios Rectifier 25/48 NT5C06D(X) –48 V / 25 A Switch Mode Rectifier

The NT5C06D provides -48 V / 25 A of isolated, filtered, and regulated DC power from a single phase AC source, for powering a load while charging a positive grounded battery. The output voltage can be adjusted from 46.0 to 56.0 V for floating a 23 or 24 cell battery string.

The rectifier is designed for automatic precharge upon insertion into the MPS75 power shelf. When the NT5C06D is plugged into a power shelf with battery back-up, or with other rectifiers running, the DC circuit breaker must be in the OPEN position (OFF position).

Each rectifier plugs into the MPS75 power shelf and does not require any other connections. The rectifier is equipped with a 13 A, two-pole, AC input circuit breaker; a 35 A, single-pole, DC output circuit breaker; a digital ammeter; and a set of LEDs, switches and potentiometers for threshold adjustments and alarm indication. The rectifier uses high frequency switching technology, is cooled by forced air, and can be equipped with an optional air filter.

Figure 1 - -MPS75 Modular Power Shelf-NT5C10C with 8-pin signal cables

Height:

178 mm (7.0 inches)

Depth:

305 mm (12.0 inches)

Width:

533 mm (21.0 inches)

Weight:

10.5 kg (23.0 lbs)

AC

DC Connections

Connections

 

Signal Cables to Controller

Helios Rectifier 25/48 Installation and User Manual

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Emerson NT5C06D user manual MPS75 Modular Power Shelf-NT5C10C with 8-pin signal cables