RM4850 4/98 REV A

Page 2

Input Specifications

Hot Swappable Modules

These shelf-mounted modules are easy and safe to install

or remove while system is operational without affecting

the overall system’s performance.

Parallel Operation and Automatic Load Sharing

Forced or passive load sharing is available between

modules of the same operating voltages in parallel

applications.

Current Limit

The Current Limit is adjustable between 0A to 50A. Upon

exceeding this limit, the rectifier automatically reduces

output voltage.

Safety

UL/CUL Recognized: UL 1950/CSA 950.

File Number: E181908

GENERAL FEATURES

Parameter

Conditions

Min

Typ

Max

Units

Operating Range

45 - 65 Hz, single phase, no taps required

176

264

Current

Adjustable

0

50

A

Efficiency

>90

%

Power Factor Correction (PFC)

>.99

MEASUREMENTS OF RM4850

Module

Weight

25 lbs.

Height

7U (12.25”)

Depth

15.25”

Width

5”

Shelf*

Weight

18 lbs.

Height

7U (12.25”)

Depth

15.25” maximum

Width

23” rack mount

* These measurements are specifically for the 200A Power Shelf for up to 4 quantity RM4850

Please contact the factory for other shelf and power plant options.

Alarm Outputs

Rectifier Fail Alarm

(RFA)

Equalize Occurring

(EQO)

High Voltage Occurring

(HVO)

Temporary Restraint Occurring

(TRO)

Thermal Shutdown Occurring

(THSD)

Open Sense Lead Has Occurred

(OS)

Low Current Alarm

(LCA)

AC Power Has Failed Alarm

(ACF)

Rectifier Fan Has Failed Alarm

(FF)

DC Breaker Is Open Alarm

(DCBKR)

AC Breaker Is Open Alarm

(ACBKR)

Note: All alarms are “Form A” relay type contacts

Control Inputs

High Voltage Shutdown

(HVSD)

Restart

(RS)

Equalize

(EQ)

Temporary Release

(TR)

Emergency Shutdown

(EMSD)

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All control inputs

are initiated with

a ground closure

reference to

ground