Rack-Mount Fail-Safe
Transfer Switch
Installation and Operations Manual
• C-8HFx
• C-16HFx
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Table of Contents
Safety Precautions............................................................................................................................6
Mounting..........................................................................................................................................7
Appendix A: Technical Specifications.............................................................................................9
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Chapter 1: Introduction
Quick Start Guide
The following instructions will help you quickly install and configure your Rack-Mount Fail-Safe
Transfer Switch for use on your network. For detailed information on each step, go to the page number
listed to the right.
1. Mount the Rack-Mount Fail-Safe Transfer Switch ....................................................................7
2. Optimize the transfer thresholds.................................................................................................7
3. Connect to the power sources.....................................................................................................7
4. Connect the devices to the Fail-Safe Transfer Switch................................................................7
Technical Support
Server Technology understands that there are often questions when installing and/or using a new
product. Free Technical Support is provided from 6:00 AM to 7:00 PM, Monday-Friday, Pacific Time.
Server Technology, Inc.
1040 Sandhill Drive
Reno, Nevada 89521 USA
Tel: 775.284.2000
Fax: 775.284.2065
Email: [email protected]
4 • Introduction
Rack-Mount Fail-safe Transfer Switch
Installation and Operations Manual
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Equipment Overview
1. The Voltage Selector switch configures the Rack-Mount Fail-Safe Transfer Switch for the installed
operational voltage.
NOTE: This configures the brownout/over-voltage switching points.
2. The power inlets connect the Rack-Mount Fail-Safe Transfer Switch to the electrical power
sources.
3. LEDs display the input feeds power status.
1
2
3
Figure 1. Sentry Rack-Mount Fail-Safe Transfer Switch Views
Rack-Mount Fail-safe Transfer Switch
Installation and Operations Manual
Introduction • 5
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Chapter 2: Installation
Before installing your Rack-Mount Fail-Safe Transfer Switch, refer to the following lists to ensure that
you have all the items shipped with the unit as well as all other items required for proper installation.
Standard Accessories
•
•
Mounting hardware: Two removable flanges with M4 screws.
Outlet retention clips (208-240V models).
Additional items for Cx-xxx-C20 models:
•
•
Separate power input cords.
Power input retention bracket hardware (may be installed):
Four removable T-brackets with four 40mm screws.
Additional Required Items
•
•
Flathead and Phillips screwdrivers
Screws, washers and nuts to attach the CDU to your rack
Safety Precautions
This section contains important safety and regulatory information that should be reviewed before
installing and using the Sentry Rack-Mount Fail-Safe Transfer Switch. For input and output current
Only for installation and use in a
Service Access Location in
accordance with the following
installation and use instructions.
Destiné à l'installation et l'utilisation
dans le cadre de Service Access
Location selon les instructions
d'installation et d'utilisation.
Nur für Installation und Gebrauch an
Anschlusszugriffspunkten gemäß der
folgenden Installations- und
Gebrauchsanweisungen.
This equipment is designed to be
installed on a dedicated circuit.
Cet équipement est conçu à être installé
sur un circuit spécialisé.
Diese Ausrüstung ist zur Installation in
einem festen Stromkreis vorgesehen.
Dedicated circuit must have circuit
breaker or fuse protection.
CDUs have been designed without
a master circuit breaker or fuse to
avoid becoming a single point of
failure. It is the customer’s
responsibility to provide adequate
protection for the dedicated power
circuit. Protection of capacity equal
to the current rating of the CDU
must be provided and must meet
all applicable codes and
regulations. In North American,
protection must have a 10,000A
interrupt capacity.
Le circuit spécialisé doit avoir un
disjoncteur ou une protection de
fusible. CDUs ont été conçus sans
disjoncteur général ni fusible pour éviter
que cela devient un seul endroit de
panne. C’est la responsabilité du client
de fournir une protection adéquate pour
le circuit-alimentation spécialisé.
Protection de capacité équivalant à la
puissance de l'équipement, et
Der feste Stromkreis muss mit einem
Schutzschalter oder einem
Sicherungsschutz versehen sein.
CDUs verfügt über keinen
Hauptschutzschalter bzw. über keine
Sicherung, damit kein einzelner
Fehlerpunkt entstehen kann. Der
Kunde ist dafür verantwortlich, den
Stromkreis sachgemäß zu schützen.
Der Kapazitätsschutz entspricht der
aktuellen Stromstärke der Geräte und
muss alle relevanten Codes und
Bestimmungen erfüllen. Für Installation
in Nordamerika müssen Ausschalter
bzw. Sicherung über 10.000 A
respectant tous les codes et normes
applicables. Les disjoncteurs ou fusibles
destinés à l'installation en Amérique du
Nord doivent avoir une capacité
d'interruption de 10.000 A.
Unterbrechungskapazität verfügen.
The plug on the power supply cord
shall be installed near the
equipment and shall be easily
accessible.
La prise sur le cordon d’alimentation
sera installée près de l’équipement et
sera facilement disponible.
Der Stecker des Netzkabels muss in
der Nähe der Ausrüstung installiert
werden und leicht zugänglich sein.
Always disconnect the power
supply cords before opening to
avoid electrical shock.
Toujours déconnecter le cordon
d’alimentation avant d’ouvrir pour éviter
un choque électrique.
Ziehen Sie vor dem Öffnen immer das
Netzkabel heraus, um die Gefahr eines
elektrischen Schlags zu vermeiden.
WARNING! High leakage current!
Earth connection is essential
before connecting supply!
ATTENTION ! Haut fuite très possible !
Une connection de masse est
essentielle avant de connecter
l’alimentation !
ACHTUNG! Hoher Ableitstrom! Ein
Erdungsanschluss ist vor dem
Einschalten der Stromzufuhr
erforderlich!
WARNING! Cx-xxE-x units
Double Pole/Neutral Fusing
ATTENTION! Les unités Cx-xxE-x
Double Pôle/Fusible sur le Neutre
ACHTUNG!: Cx-xxE-x
Zweipolige bzw. Neutralleiter-Sicherung
6 • Installation
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Installing the Power Input Retention Bracket
For units with a total maximum output <30A, it may be
necessary to install the power input retention bracket prior to
mounting the unit within the rack.
To install the power input retention bracket:
1. Remove the two screws attaching the IEC 60320 C19 inlet
to the enclosure.
2. Assemble and attach the retention bracket to the enclosure
as shown.
Figure 2.1 Retention Bracket assembly
Mounting
1. Select the appropriate bracket mounting points for
proper mounting depth within the rack.
2. Attach the brackets to these mounting points with two
screws for each bracket.
3. Install the enclosure into your rack, using the slots in
each bracket. The slots allow about ¼ inch of
horizontal adaptability to align with the mounting
holes of your rack.
NOTE: A mounting bracket kit for 23” wide racks or cabinets is
available. Contact your Server Technology Sales Representative for
more information.
Figure 2. Mounting
Optimizing the Transfer Thresholds
The Voltage Selector switch is used to optimize the transfer threshold by configuring the Transfer
Switch for the nominal operational voltage of the installation. The Transfer Switch uses this setting to
calculate the brownout and over-voltage threshold (± 13% ).
To optimize the transfer threshold:
Select the voltage setting that most closely matches the nominal operating voltage of the power sources.
Connecting to the Power Source
To attach a power cord to the unit:
1. Plug the female end of the power cord firmly into its connector at the base.
2. Use a screwdriver to tighten the two screws on the retention bracket.
To connect to the power source:
Plug the male end of the power cord into the AC power source.
Connecting Devices
1. Keep the device’s on/off switch in the off position until after it is plugged into the outlet.
2. Connect devices to the CDU outlets.
NOTE: Server Technology recommends even distribution of attached devices across all available outlets to avoid
exceeding the outlet, branch or phase limitations. See Power Ratings on page 9 for more information.
Always disconnect ALL power supply cords before opening to avoid electrical shock.
Afin d’éviter les chocs électriques, débranchez TOUTES les cables électrique avant d’ouvrir.
Immer ALLE Netzleitungen auskuppeln vor den Aufmachen um elektrischen Schlag zu vermeiden.
Rack-Mount Fail-safe Transfer Switch
Installation and Operations Manual
Installation • 7
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Chapter 3: Operations
Modes of Operation
The Sentry Rack-Mount Fail-Safe Transfer Switch is designed to operate in the following modes:
•
Normal
Infeed A provides power to branches A1 & A2 and Infeed B provides power to branches B1 & B2.
Each infeed is monitored individually for voltage and current.
•
Input Failure
The equipment powered by the failed input is transferred to the remaining input. The input current
LED display of the failed input will be blank and the remaining display will report the total current
load for the unit.
•
•
Recovery from Input Failure
When voltage is restored to the failed input and remains within ±7% of nominal for 2 seconds, the
equipment normally supported by that input is transferred back returning the Sentry to a ‘Normal’
mode with the input current LED displays reporting the total current load for each respective
infeed.
Brownout/Over-Voltage
When an input’s voltage varies from its nominal by ±13% or more, the equipment powered by that
input is transferred to the remaining input. The input current LED display of the input in the
brownout/over-voltage state will be blank and the remaining display will report the total current
load for the unit.
Nominal Voltage*
Brownout
Recovery Voltage
Over-Voltage
100V
110V
115V
120V
208V
220V
230V
240V
87.0V
95.7V
93.0V
102.3V
106.9V
111.6V
193.4V
204.6V
213.9V
223.2V
107.0V
117.7V
123.0V
128.4V
222.6V
235.4V
246.1V
256.8V
113.0V
124.3V
129.9V
135.6V
235.0V
248.6V
259.9V
271.2V
100.0V
104.4V
181.0V
191.4V
200.1V
208.8V
* Nominal operating voltage is configured by the Voltage Selector Switch.
•
•
Recovery from Brownout/Over-Voltage
When the input’s voltage returns to and remains within ±7% of nominal for 2 seconds, the
equipment normally supported by that input is transferred back returning the Sentry to a ‘Normal’
mode input current LED displays reporting the total current load for each respective infeed.
Critical Brownout
A critical brownout is when an input’s voltage drops below its nominal by -25%.
•
When an input is already in a brownout/over-voltage state AND the remaining input
experiences a critical brownout, ALL equipment will be transferred to the input only
experiencing a brownout/over-voltage.
•
When an input has already failed AND the remaining input experiences a critical
brownout, ALL outlets will turn off.
•
Recovery from Critical Brownout
When the input’s voltage returns to and remains within ±7% of nominal for 2 seconds, the
equipment normally supported by that input is transferred back.
8 • Operations
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Chapter 4: Appendices
Appendix A: Technical Specifications
Domestic Models
Model
Rated Voltage
Input Cordset and Plug (10’)
Outlets
C-8HF2-C203
C-8HF2-L303
C-16HF1-C20
C-16HF1-L30
C-16HF2-C20
C-16HF2-L30
208-240V, 50/60Hz
208-240V, 50/60Hz
100-120V, 50/60Hz
100-120V, 50/60Hz
208-240V, 50/60Hz
208-240V, 50/60Hz
IEC 60320 C201
8 IEC 60320/C19
8 IEC 60320/C19
16 NEMA 5-20R
16 NEMA 5-20R
16 IEC 60320/C13
16 IEC 60320/C13
2 x NEMA L6-30P, 30A/208V Locking
IEC 60320 C201
2 x NEMA L5-30P, 30A/120V Locking
IEC 60320 C201
2 x NEMA L6-30P, 30A/208V Locking
International Models
Model
Rated Voltage
Input Cordset and Plug (10’)
Outlets
C-8HFE-C203
C-8HFE-P323
C-16HFE-C20
C-16HFE-P32
230V, 50/60Hz
230V, 50/60Hz
230V, 50/60Hz
230V, 50/60Hz
IEC 60320 C201
8 IEC 60320/C19
8 IEC 60320/C19
16 IEC 60320/C13
16 IEC 60320/C13
2 x IEC 60309, 32A 3-pin 6Hr Blue
IEC 60320 C201
2 x IEC 60309, 32A 3-pin 6Hr Blue
1 Input cordset selected at time of purchase
Power Ratings
Input Current Ratings1
L’indice du courant d’entrée
Eingangsstromstärke
Output Current Ratings
L’indice du courant de sortie
Ausgangsstromstärke
Model
Modele
Modell
Voltage
Tension
Spannung
100-120V
50/60Hz
100-120V
50/60Hz
208-240V
50/60Hz
208-240V
50/60Hz
208-240V
50/60Hz
208-240V
50/60Hz
230V
50/60Hz
230V
50/60Hz
230V
50/60Hz
230V
50/60Hz
Current
Courrant
Strom
A: 16
B: 16
A: 24
B: 24
A: 16
B: 16
A: 24
B: 24
A: 16
B: 16
A: 24
B: 24
A: 16
B: 16
A: 32
B: 32
A: 16
B: 16
A: 32
B: 32
Voltage
Tension
Spannung
100-120V
50/60Hz
100-120V
50/60Hz
208-240V
60Hz
208-240V
60Hz
208-240V
60Hz
208-240V
60Hz
230V
50/60Hz
230V
50/60Hz
230V
50/60Hz
230V
50/60Hz
Outlet
Prise
Branch Circuit
Circuit de la Branche
Phase
Total
Total
Anschlussstelle
Zweigstromkreis
Insgesamt
C-16HF1-C20
C-16HF1-L30
C-8HF2-C203
C-8HF2-L303
C-16HF2-C20
C-16HF2-L30
C-8HFE-C203
C-8HFE-P323
C-16HFE-C20
C-16HFE-P32
16
16
16
24
16
24
16
24
16
32
16
32
16
16
16
12
12
16
16
10
10
16
16
16
16
16
16
20
16
20
1 All current ratings are in amperes. Tous les indices de courant sont en ampères. Alle Angaben der Stromstärke erfolgen in Ampere.
Physical Specifications
Operating
Storage
Temperature
32° to 104° F (0° to 40° C)
-40° to 185° F (-40° to 85° C)
0 to 50,000 ft (0 to 15000m)
10 to 90%, non-condensing
Elevation(above MSL) 0 to 10,000 ft (0 to 3000m)
Relative Humidity
10 to 90%, non-condensing
Dimensions (H x W x D)
Weight
C-xHF
3.5 x 17.0 x 14.0 in.
(90 x 437 x 356 mm)
20.7 lbs (9.4 kg)
Transfer Rate
Power transfer ≤ 18 milliseconds.
Rack-Mount Fail-safe Transfer Switch
Installation and Operations Manual
Appendices • 9
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Regulatory Compliance
Product Safety
Units have been safety tested and certified to the following standards:
•
•
USA/Canada
European Union EN60950-1:2001
UL 60950:2003 and CAN/CSA 22.2 No. 60950-1-03
This product is also designed for Norwegian IT power system with phase-to phase voltage 230V.
USA Notification
Note: This equipment has been tested and found to comply with the limits for a Class A digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the instruction manual, may cause harmful interference to radio communications.
Operation of this equipment in a residential area is likely to cause harmful interference in which case
the user will be required to correct the interference at the user’s own expense.
Modifications not expressly approved by the manufacturer could void the user's authority to operated
the equipment under FCC rules.
Canadian Notification
This Class A digital apparatus complies meets all requirements of the Canadian Interference-Causing
Equipment Regulations.
Cet appareil numérique de la classe A respecte toutes les exigencies du Règlement sur le matériel
brouilleur du Canada.
European Union Notification
Products with the CE Marking comply with both the EMC Directive (89/336/EEC) and the Low
Voltage Directive (73/23/EEC) issued by the Commission of the European Community.
Compliance with these directives implies conformity to the following European Norms:
•
•
•
•
EN55022
EN55024
EN60950-1 Product Safety
Electromagnetic Interference
Electromagnetic Immunity
EN61000-3 Harmonics and Flicker
Products with the following mark comply with the RoHS Directive
(2002/95/EC) issued by the Commission of the European Community.
Japanese Notification
この装置は、情報処理装置等電波障害自主規制協議会（ＶＣＣＩ）の基準に基づくクラ
スA情報技術装置です。この装置を家庭環境で使用すると電波妨害を引き起こすことが
あります。この場合には使用者が適切な対策を講ずるよう要求されることがあります。
Recycling
Server Technology Inc. encourages the recycling of its products. Disposal facilities,
environmental conditions and regulations vary across local, state and country jurisdictions, so
Server Technology encourages consultation with qualified professional and applicable
regulations and authorities within your region to ensure proper disposal.
Waste Electrical and Electronic Equipment (WEEE)
In the European Union, this label indicates that this product should not be disposed of with
household waste. It should be deposited at an appropriate facility to enable recovery and
recycling.
For information on how to recycle this product responsibly in your country, please visit:
10 • Appendices
Rack-Mount Fail-safe Transfer Switch
Installation and Operations Manual
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Appendix B: Warranty, Product Registration and Support
Warranty
Product Registration
Registration is your key to special offers and services reserved for Registered Users.
•
•
•
•
•
Excellent Technical Support Services
Special Update and Upgrade Programs
Warranty Protection
Extended Warranty Service
New Product Information
Technical Support
Server Technology understands that there are often questions when installing and/or using a new
product. Free Technical Support is provided from 6:00 AM to 7:00 PM, Monday-Friday, Pacific Time.
Server Technology, Inc.
1040 Sandhill Drive
Reno, Nevada 89521 USA
Tel: 775.284.2000
Fax: 775.284.2065
Email: [email protected]
Return Merchandise Authorization
If you have a unit that is not functioning properly and is in need of technical assistance or repair:
Rack-Mount Fail-safe Transfer Switch
Installation and Operations Manual
Appendices • 11
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Server Technology
HEADQUARTERS – NORTH AMERICA
Server Technology, Inc.
1040 Sandhill Drive
EMEA
APAC
Server Technology Intl
Sienna Court
Server Technology, Inc.
Singapore
Reno, NV 89521
United States
The Broadway
Maidenhead
Berkshire
SL6 1NJ
United Kingdom
+44 (0) 1628 509503 Tel
+44 (0) 1628 509100 Fax
+65 (0) 6829 7008 Tel
+65 (0) 6234 4574 Fax
+1.775.284.2000 Tel
+1.775.284.2065 Fax
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