Vertiv eSure R48-3500e3 User manual

eSure™
Rectifier Module
User Manual (UM1R483500e3), Revision H
Specification Number: 1R483500e3
Model Number: R48-3500e3

Vertiv |eSure™ Rectifier Module User Manual (UM1R483500e3)|Rev. H
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This document may contain confidential and/or proprietary information of
Vertiv Group Corp., and its receipt or possession does not convey any right
to reproduce, disclose its contents, or to manufacture or sell anything that
it may describe. Reproduction, disclosure, or use without specific
authorization from Vertiv Group Corp. is strictly prohibited.
© 2020 Vertiv Group Corp. All rights reserved. Vertiv™ and the Vertiv
logo are trademarks or registered trademarks of Vertiv Group Corp. All
other names and logos referred to are trade names, trademarks or
registered trademarks of their respective owners. While every precaution
has been taken to ensure accuracy and completeness herein, Vertiv Group
Corp. assumes no responsibility, and disclaims all liability, for damages
resulting from use of this information or for any errors or omissions.
Specifications are subject to change without notice.

Vertiv |eSure™ Rectifier Module User Manual (UM1R483500e3)|Rev. H
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TABLE OF CONTENTS
Admonishments Used in this Document............................................................4
Important Safety Instructions ..............................................................................5
General Safety ...........................................................................................................................................................5
Voltages...........................................................................................................................................................................5
AC Input Voltages........................................................................................................................................................ 5
DC Output and Battery Voltages .................................................................................................................. 5
Hazardous Voltage...............................................................................................................................................5
Handling Equipment Containing Static Sensitive Components..............................5
Static Warning...........................................................................................................6
Introduction ...............................................................................................................7
Overview..........................................................................................................................................................................7
Specifications .............................................................................................................................................................7
DC Output Ratings ...................................................................................................................................................... 7
AC Input Ratings ...........................................................................................................................................................9
Environmental Ratings ..........................................................................................................................................13
Compliance Information:..................................................................................................................................... 14
Standard Features .................................................................................................................................................... 14
Mechanical Specifications..................................................................................................................................17
Operation.................................................................................................................. 18
AC Input Protection Device Requirements/Recommendations...........................18
Local Indicators.....................................................................................................................................................18
Rectifier High Voltage Shutdown and Lockout Restart...............................................18
Rectifier Current Limit....................................................................................................................................18
Installing Rectifiers.............................................................................................................................................19
Troubleshooting and Repair................................................................................ 21
Troubleshooting ................................................................................................................................................... 21
Rectifier Current Sharing Imbalance........................................................................................................21
Rectifier Fault Symptoms and Troubleshooting...........................................................................21
Replacement Procedures........................................................................................................................... 23
Rectifier Replacement...........................................................................................................................................23
Rectifier Fan Replacement...............................................................................................................................24

Vertiv |eSure™ Rectifier Module User Manual (UM1R483500e3)|Rev. H
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ADMONISHMENTS USED IN THIS DOCUMENT
DANGER
! Warns of a hazard the reader will be exposed to that will likely result
in death or serious injury if not avoided. (ANSI, OSHA)
WARNING
! Warns of a potential hazard the reader may be exposed to that could
result in
death or serious injury if
not avoided. This admonition is not used for situations that pose a
risk only to equipment, software, data, or service. (ANSI)
CAUTION
! Warns of a potential hazard the reader may be exposed to that could
result in minor or moderate injury if not avoided. (ANSI, OSHA) This admonition is not
used for situations that pose a risk only to equipment, data, or service, even if such use
appears to be permitted in some of the applicable standards. (OSHA)
ALERT
! Alerts the reader to an action that must be avoided in order to protect
equipment, software, data, or service. (ISO)
ALERT
! Alerts the reader to an action that must be performed in order to prevent
equipment damage, software corruption, data loss, o
r service interruption. (ISO)
FIRE SAFETY
! Informs the reader of fire safety information, reminders, precautions,
or policies, or of the locations of fire
-fighting and fire-safety equipment. (ISO)
SAFETY
! Informs the reader of general safety information, reminders, precautions, or
policies not related to a particular source of hazard or to fire safety. (ISO, ANSI, OSHA)

Vertiv |eSure™ Rectifier Module User Manual (UM1R483500e3)|Rev. H
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IMPORTANT SAFETY INSTRUCTIONS
General Safety
DANGER! YOU MUST FOLLOW APPROVED SAFETY PROCEDURES.
Performing the following procedures may expose you to hazards. These procedures should be
performed by qualified technicians familiar with the hazards associated with this type of equipment.
These hazards may include shock, energy, and/or burns. To avoid these hazards:
a) The tasks should be performed in the order indicated.
b) Remove watches, rings, and other metal objects.
c) Prior to contacting any uninsulated surface or termination, use a voltmeter to verify that no voltage
or the expected voltage is present. Check for voltage with both AC and DC voltmeters prior to
making contact.
d) Wear eye protection.
e) Use certified and well maintained insulated tools. Use double insulated tools appropriately rated for
the work to be performed.
Voltages
AC Input Voltages
DANGER! This system operates from AC input voltage capable of producing fatal electrical shock.
DC Output and Battery Voltages
DANGER! This system produces DC power and may have a battery source connected to it. Although
the DC voltage is not hazardously high, the rectifiers and/or battery can deliver large amounts of current.
Exercise extreme caution not to inadvertently contact or have any tool inadvertently contact an output
terminal or battery terminal or exposed wire connected to an output terminal or battery terminal.
NEVER allow a metal object, such as a tool, to contact more than one termination or battery terminal at a
time, or to simultaneously contact a termination or battery terminal and a grounded object. Even a
momentary short circuit can cause sparking, explosion, and injury.
Hazardous Voltage
DANGER! HAZARD OF ELECTRICAL SHOCK.
More than one disconnect may be required to de-energize the system before servicing.
Handling Equipment Containing Static Sensitive Components
ALERT! Installation or removal of equipment containing static sensitive components requires careful
handling. Before handling any equipment containing static sensitive components, read and follow the
instructions contained on the Static Warning Page.

Vertiv |eSure™ Rectifier Module User Manual (UM1R483500e3)|Rev. H
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STATIC WARNING
This equipment contains static sensitive components. The warnings listed below must be observed to
prevent damage to these components. Disregarding any of these warnings may result in personal injury
or damage to the equipment.
1. Strictly adhere to the procedures provided in this document.
2. Before touching any equipment containing static sensitive components, discharge all static
electricity from yourself by wearing a wrist strap grounded through a one megohm resistor. Some
wrist straps have a built-in one megohm resistor; no external resistor is necessary. Read and follow
wrist strap manufacturer’s instructions outlining use of a specific wrist strap.
3. Do not touch traces or components on equipment containing static sensitive components. Handle
equipment containing static sensitive components only by the edges that do not have connector
pads.
4. After removing equipment containing static sensitive components, place the equipment only on
static dissipative surfaces such as conductive foam or ESD bag. Do not use ordinary Styrofoam™or
ordinary plastic.
5. Store and ship equipment containing static sensitive components only in static shielding containers.
6. If necessary to repair equipment containing static sensitive components, wear an appropriately
grounded wrist strap, work on a conductive surface, use a grounded soldering iron, and use
grounded test equipment.

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INTRODUCTION
Overview
The rectifier provides load power, battery float current, and battery recharge current during normal operating
conditions. The rectifier is a constant power design. The rectifier is rated at its maximum output power. This
means that, within the normal operating ambient temperature range and input voltage range, the maximum
available output power is a constant 3500 W. Within these ranges, the rectifier operates in one of three modes,
depending upon load demands. Transition between modes is completely automatic. If ambient temperature
rises above or input voltage falls below acceptable values, the rectifier continues to operate but at derated
output power levels.
•Constant Voltage Mode: For any initial output voltage setting from 42 to 58 volts, output voltage
remains constant regardless of load. This is the normal operating condition, in which loads are being
supplied and batteries are float charged. Rectifiers operate in the Constant Voltage Mode unless load
increases to the point where the product of load current and output voltage is approximately 3500 W.
•Constant Power Mode: As load increases above approximately 3500 W (non-adjustable), output current
continues to increase, but output voltage decreases as required to maintain constant output power.
Rectifiers operate in the Constant Power Mode unless load continues to increase to the point where the
current limit setting is reached.
•Constant Current Mode: If load increases to the current limit setting, output voltage decreases linearly
to maintain output current at the current limit setting.
Specifications
DC Output Ratings
NOTE! A current limitation can be set by the User and the output voltage level is set through the
controller.
•Voltage: Nominal -48 volts DC, positive ground.Output voltage is adjustable from -42 to -58 volts DC
via the associated controller.
•Output Power and Current: 3500 W (73 A) @ 208 VAC / 220 VAC / 230 VAC / 240 VAC / 277 VAC
input and -48 VDC output.
•Output Characteristics: Refer to Figure 1for a graph of output voltage vs. output current.
Figure 1: Output Voltage vs. Output Current
0
10
20
30
40
50
60
010 20 30 40 50 60 70 80
Output Voltage (V)
Output Current (A)
Output voltage vs. Output current,
Max. Output Power 3500W

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•Power Derating Based on Input Voltage:The rectifier power varies with changes in input voltage and
output voltage. It uses an advanced power limitation method. The lower input threshold is 85 VAC. The
rectifier can provide its maximum rated power (3500 W) as long as the input voltage is within the range
of 176 VAC to 305 VAC. Below 176 VAC, and down to 85 VAC, the rectifier will continue to operate
normally but will be in a power derating mode. The relationship between the output power and input
voltage is illustrated in Figure 2.
Figure 2: Power Derating Based on Input Voltage
•Power Derating Based on Temperature:The rectifier delivers full power when operating at an ambient
temperature of +45 °C (+113 °F) or below. Each rectifier continuously monitors the ambient temperature
surrounding the power conversion circuit. If this temperature for any reason (such as a high ambient
temperature) increases above approximately +45 °C (+113 °F), the rectifier will not shut down. Rather,
the rectifier limits its maximum output power to maintain the temperature of the power conversion
circuit within design parameters. Operation between +45 °C (+113 °C) and +75 °C (+167 °F) will result in
output power being decreased. Full power capability is restored when the temperature decreases to
below approximately +45 °C (+113 °F). Refer to Figure 3to view the relationship between the output
power and the ambient temperature.
Other power rating values are as follows (refer to Figure 3):
a) At an ambient temperature of +50 °C (+122 °F), the power delivered by the rectifier is 3200 W.
b) At an ambient temperature of +65 °C (+149 °F), the power delivered by the rectifier is 2700 W.
WARNING! The rectifier is rated for continuous operation at full output power up to +45 °C (+113 °F).
Operation between +45 °C (+113 °F) and +75 °C (+167 °F) will result in output power decrease.
Operation above +75 °C (+167 °F) is considered abnormal and should be used on a temporary1basis
only.
1Temporary Operation at Abnormal Temperature: Temporary operation is defined as a period of
not more than eight consecutive hours per day, and a total of not more than 15 days in a year.
(This refers to a total of 120 hours in any given year, but no more than 15 occurrences in that one-
year period.)
0.0%
20.0%
40.0%
60.0%
80.0%
100.0%
120.0%
050 100 150 200 250 300 350
% of output power
For R48-3500e3 Input voltage (Vac)
Output power vs. Input voltage and
Vo≥ 48V at Temp≤45
℃

Vertiv |eSure™ Rectifier Module User Manual (UM1R483500e3)|Rev. H
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Figure 3: Power Derating Based on Temperature
•Regulation:
a) Static: Steady state regulation is ±0.6% as controlled within the rectifier for any and all combinations of
load from no load to full load, input voltage, and input frequency at a constant ambient temperature.
With controller, the output voltage shall remain within ±0.5% of the set point over the specified ranges of
input line voltage, output load current and ambient temperature.
b) Dynamic: Response time ≤200 microseconds and overshot ≤5% for load changes at 50% - 25% -
50% and 50% - 75% - 50% at rated output voltage and current.
For any step load change within the range of 10% to 90% of full load within 1 milliseconds, per
Telcordia GR-947-CORE, the maximum voltage transient will not exceed 5% of the initial steady
state voltage within 250±10 microseconds. Recovery to within 1% of the initial steady state voltage
does not exceed 4 milliseconds.
•Filtering:
a) Voice Band Noise: Complies with YD/T-731-2008.
1. Peak-peak voltage is ≤200 mV at 0 MHz - 20 MHz and normal output voltage. (YD/T-731-
2008)
2. Psophometric noise is ≤2 mV typical at 220 VAC input, 53.5 VDC output and 20% to 70% of
rated load for more than one rectifier.
b) Wide Band Noise: Complies with YD/T-731-2008.
1. Wideband noise emission is < 20 mV between 25 Hz - 20 kHz according to ETS 300132-2.
AC Input Ratings
•Voltage: Nominal 208 VAC / 220 VAC / 230 VAC / 240 VAC / 277 VAC, single phase, 3-wire, 50 Hz / 60
Hz, with an operating range of 200 VAC to 305 VAC. Acceptable input frequency range is 45 Hz to 65
Hz.
Permitted Variation: 85 VAC to 305 VAC.
Harmonic Content (THD): Meets EN61000-3-2.
≤5% from 50% to 100% of rated output current at 208 VAC, 220 VAC, 230 VAC, 240 VAC, 277 VAC for
50 Hz, 60 Hz, 53.5 VDC and 25 °C;
≤10% for 30% rated output current at 220 VAC, 50Hz, 53.5 VDC and 25 °C.
0
20
40
60
80
100
120
-40 -20 020 40 60 80 100
% of output power
Temperature (
℃
)
Output power vs. Temperature at 290 Vac ≥ Vin ≥
176Vac and 58V ≥ Vout ≥ 48V

Vertiv |eSure™ Rectifier Module User Manual (UM1R483500e3)|Rev. H
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•Inrush Current: Peak does not exceed 1.5 times of the peak value of the maximum steady-state input
current at full load, 220 VAC input voltage, and for any duration of AC input interrupts. Under the above
conditions, standard AC distribution circuit breakers will not trip.
•Typical Input Data: 50 Hz input.
a) Refer to Table 1.
b) Maximum Input Current: Refer to Table 2.
•Typical Input Data: 60 Hz input.
a) Refer to Table 3.
b) Maximum Input Current: Refer to Table 4.
•Efficiency Curve:Refer to Figure 4.