American Power Conversion MX28B1200, MX28B2400+27V Power Output Capacity, Rectifiers, Converters

Rev 1 MX28B-1200+27V PRODUCT MANUAL

4.2 Power Output Capacity

A power frame consists of three rectifier shelves, each shelf accommodating up to four hot-plug, 100 amp rectifiers. A completely configured power frame with 12 rectifiers is rated at 1200 amps. The master control unit provides control and monitoring for the entire system.

The optional converter shelf supports up to eight hot-plug +24/-48V DC/DC converters. Each converter is rated at 10 Amps.

4.3 Rectifiers

APC Model MRF28H27BV with specifications as follows:

∙	Input Voltage:	176-264V ac (230V ac nominal) @ 45-66 Hz
∙ Input Current per Rectifier:		13.9 Amps @ 230V ac
∙	Apparent Power Factor:	99% Typical, 98% Minimum
∙	Output Voltage:	27.2V DC
∙	Overvoltage Protection:	Set at 31.5V DC
∙ Output Current per Rectifier:		100A Minimum Continuous
∙ Power Output per Rectifier:		2800W Continuous, Vin > 198V ac
∙	Efficiency:	89% Typical
∙	Cooling:	Fan cooled, front to rear airflow
∙	Ambient Temperature:	-25°C to 55°C Operational

4.4 Converters

APC Vector Series with specifications as follows:

∙Input Voltage:

∙Input Current per converter:

∙Output Voltage:

∙Output current per converter:

∙Power output per converter:

∙Efficiency:

∙Cooling:

∙Ambient temperature:

+20V DC to +30V DC

<30 amps

-50VDC (-48V DC to –52V DC)

10amps

520Watts

>85%

Fan cooled, front to rear airflow -40°C to 55°C Operational

7