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4HE2--ODULAR3WITCH-ODE2ECTIFIERISONEOFD
FAMILY OF RECTIFIERS THAT MAY BE USED IN
MODULAR POWER PLANTS 4HIS UNIT WILL FUNCTION IN PARALLEL
WITH ANY RECTIFIER WITH SIMILAR CURRENT SHARING CAPACITIES
4HISCOMPACTVERSATILEANDEFFICIENTUNITISIDEALFORUSEIN
ADVANCEDTELECOMMUNICATIONSAPPLICATIONS)TSSMALLSIZE
ALLOWSTHEUSERTOPLANECONOMICALLYFORSYSTEMEXPANSION
ATMINIMUMCOSTANDMAKESITIDEALFORUSEINFIBEROPTIC
MICROWAVE AND OTHER APPLICATIONS WHERE SPACE IS AT A
PREMIUM
Contact Factory for Replacement Model
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Technical enquiries - email: [email protected], tel: +1 508 339 3000
Input Specifications
Parameter
Operating Range
Conditions
Min
45 - 65 Hz, single phase, no taps required
106
Current
106 VAC
208 VAC
240 VAC
Efficiency
Power Factor Correction (PFC)
Typ
Max
Units
264
VAC
4.6
2.55
A
A
2.12
84
A
%
>.99
MEASUREMENTS OF RM4875
Module
Shelf*
Weight
Height
Depth
Width
2.88 lbs.
2.4”
11.0”
4.75”
Weight
Height
Depth
Width
15.5 lbs.
3.5” with rectifiers mounted in shelf
12” maximum
23” rack mount
* These measurements are specifically for the AGM25 List 1 up to 8 quantity RM 487.5.
Please contact factory for other shelf and power plant options.
GENERAL FEATURES
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.
Current Limit
Upon reaching 110% of rated current, the rectifier will
automatically limit the current down to short circuit
conditions with no fold back.
Parallel Operation and Automatic Load Sharing
Forced share connection is made via a hard wire. Sharing
is within ±10% of the average current for the load applied.
Safety
UL/CUL Approved: UL 1950/CSA 950.
File Number: E131694
Remote Control Enable Signal
The rectifier’s output voltage control may be changed from
internal float and equalize pots to external remote control
though a digital ground signal.
Status Indicator
RFA
Remote Control
Equalize
Front Panel Current Test Jacks
Normal
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Technical enquiries - email: [email protected], tel: +1 508 339 3000
Output Specifications
Parameter
Conditions
Min
Typ
Max
Units
Voltage Adjustment Range
Regulation
Load Current
Hold-Up Time
Filtering
Voice band
Wide band noise
float voltage
48
56
VDC
equalize voltage
0-100% load within
specified input voltage and frequency range
within a 10 - 100% rating
nominal AC line
52
60
VDC
>16
%
%
mS
@ 20 MHz
< 32
<250
dBrnc
mV p-p
ENVIRONMENTAL
Temperature
Operating
-40
-40
-50
-58
0
0
0
Storage
Humidity
Altitude
Heat Dissipation
Audible Noise
± .5
±10
non-condensing
@54V
5 ft. from any vertical surface
+65
149
+85
185
95
7000
2133
264
<55
°C
°F
°C
°F
%
ft.
m
Btu/hr
dBa
PROTECTION, ALARM AND CONTROL SYSTEMS
Rectifier Failure Alarm (RFA)
Problems occurring because of an unacceptable relationship between the output power and load conditions will
cause a Rectifier Failure Alarm (RFA). This alarm consists
of a red LED and a flashing green OK LED. Conditions
which may lead to an RFA are:
Low Current - Output current has decreased to below
5% of its rated value.
Unit Shutdown - Any shutdown occurrence due to
overvoltage, external shutdown command, unacceptable
ambient temperature conditions or low AC input voltage.
Load Sharing Terminal Pin Out Of Range - The
terminal pin is out of range.
Remote Control Terminal Out Of Range - The remote
control terminal pins are out of range.
Line Sag - This condition occurs when the nominal
voltage decreases below 180V. Normal range is 208240V.
Fan Malfunction - The fan has stopped operating or is
not providing the airflow needed to cool the unit.
Over Temperature - The ambient temperature has
exceeded 65°C.
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High Voltage Shutdown (HVSD)
The unit’s built-in high voltage limit is permanently set at
60V. When internal shutdown occurs, the unit may be
restarted by a local switch or by a remote signal.
Surge Protection
The unit will withstand lightning and input surges of
6000V/3000A.
Under Voltage Protection
When input voltage is below 105 VAC, the rectifier’s
operation is automatically power limited.
Technical enquiries - email: [email protected], tel: +1 508 339 3000
Mechanical
ALL MEASUREMENTS ARE IN INCHES
2.90
I+
EQL
FLT
REM
EQL
NORM
RFA
OFF
2.400
I-
HFM 48-7.5
4.750
10.955
Standard Options are shown, consult factory for other available options.
www.murata-ps.com
Technical enquiries - email: [email protected], tel: +1 508 339 3000