CW-16HF2 208-240V Power Distribution, Outlet Control and Redundancy for Single-Power Supply Servers

Switched Fail-Safe Transfer SwitchThe Sentry CW-16HF2 provides fail-over redundancy to single or dual-power supply servers andnetwork devices. Exclusive to the Sentry Switched Fail-Safe family is its ability to carry loads onthe A circuit, B circuit or both and to remotely manage the outlets.

Similar, but unlike a common automatic transfer switch, the Sentry Switched Fail-Safe unit isunique in that it contains two (2) in-feeds with two (2) banks of eight (8) outlets each, for a totalof 16 outlets across the two circuits.

The "A" infeed routinely powers just the A1-8 outlets, and the "B" in-feed routinely powers justthe B1-8 outlets. However, if the "A" infeed goes down, the "B" infeed powers all 16 outlets and ifthe “B” infeed goes down , the “A” infeed powers all the outlets.

This "Fail-Safe" method has several advantages compared to a standard ATS because it does notprohibit load balancing between the two supplied circuits. A standard ATS contains twoin-feeds, but runs all outlets from just one source, with the secondary source only being used

are routinely loaded, but only to half capacity. This results in less heat and consequently less of avoltage drop compared to the same load existing on just one source. Only when an outageoccurs on one of the two sources will the entire load be applied to a single source

Switched Fail-SafeTransfer Switch

Key Features > Fail-Safe: Redundant power feedspick up the entire load for both circuitsif either power feed fails

> Power Distribution: 208V 20/30A;230V 16/32A power input options(Phase-synchronized input powerrequired).

> Remote Management: Power cycleindividual power outlets, or groups ofpower outlets, to remotely rebootservers and network devices,

unused power receptacles

> Power-up Sequencing: of outletsprevents a power in-rush overload.User adjustable sequence interval.

> Input Current Monitor: Powermonitoring of the aggregate load (inamps) on each power circuit via thenetwork interface and locally on theenclosure.

> Authentication: Username/passwordrequired for network administrators &user accounts. Multiple user accountscan be established with designatedaccess rights.

>Web GUI:for managing and grouping outlets,user accounts and network settings.

> Add an Expansion Module: Connectthe Switched Expansion Module (CX)to a Master unit (CW) for powermonitoring and control from a singleIP address.

> Outlet Grouping: Group individualoutlets for control of dual-powersupply servers and devices with asingle command. > Environmental Monitoring: Addtemperature, humidity, water andintrusion monitoring with theEMCU-1-1B

ts

Temperature and Humidity The Switched PDU supports two external probes. Each of theseprobes measure both temperature and humidity. ReceiveSNMP-based alert notifications when conditions exceed definedthresholds.

Input Current Monitoring Exclusive Digital True RMS current monitoring is critical to preventing overloads in high-density computing environments. LED digital display on the PDU enclosure report the input current of the branch circuit.

Linking (Expansion Modules)The Switched PDU family has the capability to daisy chain units together. The Expansion Module provides the ability to link two power circuits under one IP address.

once an outage occurs on the primary infeed. The “Fail-Safe” method di�ers in that both circuits

Model Available InputVoltages

OutletsAmperageDimensions(L x W x D)

CW-16HF2C452CX-16HF2C452*

(16) IEC 60320/C13208-240V 50/60 Hz

CW-16HF2A452CX-16HF2A452*

208-240V 50/60 Hz

(16) IEC 60320/C13 17.2 x 3.50 x 10.0 in.(437 x 89 x 254 mm)

*CX part number refers to the expansion PDU

(2) NEMA L6-30P Plugs,10'(3m) Cord

(2) IEC C20 Power Inlets

Available Input Cord

20A

30A17.2 x 3.50 x 10.0 in.(437 x 89 x 254 mm)

CW-16HFEK452CX-16HFEK452*

(16) IEC 60320/C13230V 50/60 Hz

CW-16HFEA452CX-16HFEA452*

230V 50/60 Hz

(16) IEC 60320/C13 17.2 x 3.50 x 10.0 in.(437 x 89 x 254 mm)

(2) IEC Blue 2P+G Plug,10'(3m) Cord

(2) IEC C20 Power Inlets16A

32A17.2 x 3.50 x 10.0 in.(437 x 89 x 254 mm)

Legal• Information on Server Technology patents is available on the website at:http://www.servertech.com/products/patents"• Information in this document is current as of time of publishing. Contact yourServer Technology representative for the most up-to-date information.• Server Technology, the Globe logo, CDU, Sentry, and PIPS are trademarks of ServerTechnology, Inc., registered in the U.S. HDOT is a trademark of Server Technology, Inc.

© 2015 Server Technology, Inc. Information in this document is subject to change without notice. Sentry and Server Technology are trademarks of Server Technology, Inc. Printed in US.Version 201510

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Communications and Security• 10/100 Mbps Ethernet (RJ-45 connector)• RS-232 serial (RJ-45 connector)• Two (2) temperature/humidity sensor inputs (4P4C)• Link port (RJ-12)• Web-browser GUI and command-line-interface (CLI) HTTP/HTTPS, TLSv1, SSHv2, Telnet, SNMPv3 and v3 (GET,SET, Traps), IPv4 and IPv6, LDAPv3/LDAPS, TACACS+, RADIUS

VMware and VMware Ready is a registered trademark or trademark of VMware, Inc. in the United States and/or other jurisdictions

Accessories• EMTH-1-1 Combination Temperature/Humidity Probe, 10ft (3m)• EMCU-1-1B Environmental Monitor adding: -Two (2) EMTH-1-1 temperature/humidity ports (one probe included) -One (1) EMWS-1-1 water sensor port (probe sold separately) -Four (4) dry contact (NO/NC) monitoring points -One (1) 8-bit analog-to-digital converter (0 to 5VDC)• SPM (Sentry Power Manager): -Monitor and manage multiple PDUs from a single point -Monitor and manage alarm conditions -Create reports and trends on stored data -Analyze power usage per phase -Optional appliance or virtual version -VMware Ready

Power Cord Options• PTCORD-L1 IEC 60320/C19 - NEMA L6-20P (20A Twist-Lock) 10’ (3m)• PTCORD-L2 IEC 60320/C19 - Schuko 10’ (3m)• PTCORD-L3 IEC 60320/C19 - IEC 60309 (BS4343, CEE17) 16/20A Blue (UK Commando) 10’ (3m)• PTCORD-L4 IEC 60320/C19 - BS1363 13A (UK) 10’(3m)

Branch Circuit Protection• UL489 compliant circuit breakers, 1-pole, 20A• Two2) branches• Current Rating: ≤ 16A• Voltage Rating: 208V-240V nominal, 50/60Hz

Global Approvals• TUV T-Mark to EN 60950-1:2006 + A11 + A1 + A12• EMC to EN 55022 Class A, EN 55024, CISPR 22 Class A• CE Mark• RoHS/WEEE

North America Approvals• cTUVus Mark to UL 60950-1:2007 and CAN/CSA 22.2 No. 60950-1-07• EMC to EN 55022 Class A, EN 55024, CISPR 22 Class A• FCC Class A, Part 15• RoHS/WEEE

Additional Features and Specifications

Warranty

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