Cisco Power Calculator

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Power over Ethernet on the Cisco Catalyst 4500E Series Platform
The Cisco® Catalyst® 4500E Series platform offers line cards, power supplies, and accessories to support 15.4W per port simultaneously on every port in any fully loaded Cisco Catalyst 4500E Series switch. Although all references to "Power over Ethernet" (PoE), "inline power," and "voice" power supply and line cards are synonymous. There are four versions: Cisco prestandard PoE, 802.3af-compliant PoE, 802.3at-compliant PoEP (30W), and Universal POEP (UPOE) (60W). Every Cisco Catalyst 4500 Series chassis and PoE power supply supports the Cisco prestandard PoE, the IEEE 802.3af standard PoE, and IEEE 802.3at-compliant PoEP power implementation, helping ensure backward compatibility with existing Cisco powered devices. PoEP is standard on the Cisco Catalyst 4500E Series platform. UPOE requires Cisco Catalyst 4500E Series chassis.
All Cisco Catalyst 4500 Series PoE line cards can distinguish an IEEE or Cisco prestandard powered device from an unpowered network interface card (NIC) to help ensure that power is applied only when an appropriate device is connected. With a Cisco PoE network, administrators can depend on a robust network that is safe to deploy and simple to maintain.
PoE is the capability to provide up to 15.4W of power over 100m of standard Category 3 (or better) unshielded twisted-pair (UTP) cables when an IEEE 802.3 af-compliant or Cisco prestandard powered device is attached to the PoE line-card port. Instead of requiring wall power, attached devices such as IP phones, wireless base stations, video cameras, and other IEEE-compliant appliances can use power provided from the Cisco Catalyst 4500 Series PoE line cards. This capability gives network administrators centralized control over power and eliminates the need to install outlets in ceilings and other out-of-the-way places where a powered device can be installed. When a switch is connected to an uninterruptible-power-supply (UPS) system, network administrators can help ensure that power outages will not affect network availability. IEEE 802.3at-compliant PoEP extends the Power over Ethernet capability to up to 30W over 100m of Category 5e (or better) unshielded twisted-pair (UTP) cables.
Universal POEP is an enhancement to the PoEP (802.3at) standard to allow powered devices up to 60W to connect over a single Cat 5e cable. Standard PoEP uses only 2 twisted pairs (out of 4) in the Ethernet cable. UPOE uses all 4 twisted pairs to deliver 60W to the port. The additional power UPOE offers over standard PoE extends the advantages of PoE to next-generation powered workspace devices such as virtual desktop displays, workgroup switches, and physical access controllers. All Cisco Catalyst 4500E Series UPOE line cards support standard PoE as well as Cisco prestandard PoE. When deploying UPOE devices, Cat5e (or better) unshielded twisted-pair (UTP) cable is recommended.
Deploying PoE on the Cisco Catalyst 4500E Series
PoE deployment is extremely easy on the Cisco Catalyst 4500E Series platform. All Cisco Catalyst 4500 Series PoE line cards automatically detect and power all attached powered devices. Moreover, the Cisco Catalyst 4500 Series returns unused port power to the system power budget for use by other devices because it supports the IEEE 802.3af optional power classifications. Finer granularity for the budgeted power is achieved on Cisco power devices that support Cisco Discovery Protocol.
The Cisco Catalyst 4500E Series offers internal power supplies and external power devices for multiple deployment scenarios, including small and large deployments in AC or DC environments for data-only configurations, and scalability up to 60W per port for PoE, PoEP, and UPOE configurations.
All the Cisco Catalyst E-Series Chassis models share a common power-supply form factor. Each Cisco Catalyst 4500 Series chassis is designed for 1 + 1 power protection while meeting the needs of PoE demands. In addition to power resiliency, the Cisco Catalyst 4500 Series includes 1 + 1 supervisor-engine redundancy (Cisco Catalyst 4507R+E/4507R-E and 4510R+E/4510R-E models only) and software-based fault tolerance. Integrated resiliency in both hardware and software minimizes network downtime, helping ensure workforce productivity, profitability, and customer success.
Table 1 gives an overview of IEEE 802.3af power classifications.

Table 1. Overview of IEEE 802.3af Power Classifications (Measured at the Switch Port)
IEEE 802.3 Class Power Available at the Switch Port
0 15.4W: Default class
1 4W
2 7W
3 15.4W
4 Up to 30W via L2 negotiation (PoEP)
4 enhanced Up to 60W via LLDP negotiation (UPOE)
Cisco prestandard PoE 6.3W
Comparison Between Cisco Prestandard PoE, 802.3af-Compliant PoE, and 802.3at-Compliant PoE
From a power perspective, there are several significant differences between the Cisco prestandard, 802.3af-compliant and 802.3at-compliant line cards. The differences are illustrated by comparing the total number of PoE devices supported by the Cisco prestandard inline power line card, the 802.3 af-compliant, and the 802.3at-compliant line cards (Table 2).

Table 2. Number of Powered Devices Supported When Using Power Supplies in a 1 + 1 Mode Using IEEE 802.3af-Compliant Line Cards
 Standard 802.3af Class 1 (4W per Port) Standard 802.3af Class 2 (7W per Port) Standard 802.3af Classes 0 and 3 (15.4W per Port) Standard 802.3at Class 4 (PoEP) (30W per Port) UPOE (60W per port) Cisco Prestandard (6.3W per Port)
1000 WAC - - - - - -
1400 WAC - - - - - -
1400 WDC - - - - - -
1400 WDC (triple input) - - - - - -
1300 WAC 186 106 48 24 12 118
2800 WAC 325 186 84 43 21 206
4200 WAC 384 384 223 114 57 384
6000 WAC 384 384 289 148 74 384
Cisco Catalyst 4500E Series Power-Supply Options: AC and DC
The Cisco Catalyst 4500E Series offers a variety of power supplies and accessories to meet the diverse needs of enterprise and service provider customers. All available Cisco Catalyst 4500 Series power supplies can be used for data-only deployments, which typically require just a few hundred watts. For deployments that dictate support for PoE power, Cisco offers several options.
The Cisco Catalyst 4500E Series offers AC power with several internal supplies: 1000W (data only), 1400W (data only), 1300W (data and PoE), 2800W (data and PoE), 4200W (data and PoE), and 6000W (data and PoE). When 5500W or less is required, the 4200W power supply can provide 5500W while protecting the chassis from a power or power-supply subunit failure. All Cisco Catalyst 4500 AC power supplies are single phase and operate between 100VAC and 240VAC.
The Cisco Catalyst 4500E Series has two DC power options: one is optimized for data-only deployments in service provider central offices (part number PWR-C45-1400DC), and the other is used for high-power PoE deployments (PWR-C45-1400DC-P). All DC power supplies are designed to operate between -44VDC and -72VDC.
Cisco Catalyst 4500E Series Service Provider DC Power Supply
The triple-input 1400-WDC power supply is optimized for service provider central-office deployments. By providing multiple inputs, the service provider DC power supply allows central-office technicians to customize the output power to meet their application needs. Many central-office deployments require only a fraction of the 1400W available in the service provider power supply. With low-current inputs, technicians can connect the supply to smaller fuses and breakers. The service provider power supply makes it possible to deploy a Cisco Catalyst 3-slot chassis with a single 15A circuit. Likewise, it is possible to deploy a fully populated Cisco Catalyst 10-slot chassis with one 15A and two 20A circuits rather than a single 60A connection, which often requires rack rewiring (Table 3).

Table 3. Triple-Input 1400-WDC Power-Supply Input Modes
Input Mode Input No. Input Configuration Maximum Total Output Power
1 1 One 12.5A 412W
2 2 or 3 One 15A 495W
3 1, 2, or 3 One 12.5A and one 15A 908W
4 2 or 3 Two 15A 990W
5 1, 2, or 3 One 12.5A and two 15A 1400W
Cisco Catalyst 4500E Series Dual Input AC PoE Power Supplies
The 6000W ACV and 4200W ACV power supplies feature combined Mode Power Resiliency as an extension of the traditional combined mode power-supply behavior. Each power supply contains two smaller power supplies (called subunits). In Combined Mode Power Resiliency the system relies only on power from three out of four power-supply subunits. When using 200 VAC, this feature helps ensure that maximum power is available while the switch is protected against a single input power failure or subunit component failure. (See Tables 4 through 7.)
6000W AC Power Supply

Table 4. Dual-Input 6000 WAC Power-Supply Input Mode (Single Power Supply)
PS1-1 PS1-2 Total Output Power
110V Off 1050W
110V 110V 2100W
220V Off 3000W
220V 220V 6000W

Table 5. Total Output Power in Combined Mode Power Resiliency
PS1-1 PS1-2 PS2-1 PS2-2 Total Output Power
110V 110V 110V 110V (hot standby) 2730W
220V 220V 220V 220V (hot standby) 7850W
6000W AC Power Supply also supports true output power consumption monitoring capability.
4200W AC Power Supply

Table 6. Dual-Input 4200 WAC Power-Supply Input Mode (Single Power Supply)
PS1-1 PS1-2 Total Output Power
110V Off 1050W
110V 110V 2100W
220V Off 2100W
220V 220V 4200W

Table 7. Total Output Power in Combined Mode Power Resiliency
PS1-1 PS1-2 PS2-1 PS2-2 Total Output Power
110V 110V 110V 110V (hot standby) 2730W
220V 220V 220V 220V (hot standby) 5500W
Cisco Catalyst 4500E Series Power Supplies
In any deployment scenario, whether AC or DC, the Cisco Catalyst 4500 Series has the power supplies and external power devices to meet customers' power needs for data, voice, and video applications (Figure 1).

Figure 1. Cisco Catalyst 4500 Series Power Supplies

For information on Cisco Catalyst 4500E Series power-supply specifications, see Tables 8 through 10.

Table 8. Cisco Catalyst 4500E Series Power-Supply Specifications (Data-Only Power Supplies)
Power Supply 1000 WAC 1400 WAC 1400W Triple Input DC (PWR-C45-1400DC)
 (PWR C45-1000AC) (PWR C45-1400AC)
Minimum Cisco IOS® Software release required 12.1(12c)EW 12.2(18)EW 12.2(25)EW
Minimum Cisco Catalyst Operating System Software required 7.4(1) - -
Integrated PoE No (data only) No (data only) No (data only)
IEEE 802.3af compliant No No No
Input voltage 100 to 240 VAC (±10% for full range) 100 to 240 VAC (±10% for full range) -48 to -60 VDC
Input current (rated) 12A at 100 VAC 16A at 100 VAC Two -48 VDC at 15A
 5A at 240 VAC 7A at 240 VAC One -48 VDC at 12.5A
Output current (data) 12V at 83.4A 12V at 113.4A Two -48 VDC at 15A
 3.3V at 12.2A 3.3V at 12.2A One -48 VDC at 12.5A
Output current (PoE) - - -
Output power redundant mode (data) 1000W + 40W 1360W + 40W 1368W + 40W
Output power redundant mode (PoE) - - -
Output power combined mode (data) 1667W 2473W 2473W-
Output power combined mode (PoE) - - -
Heat dissipation 943 BTU/hr 1048 BTU/hr 1048 BTU/hr
Holdup time 20 ms 20 ms 4 ms

Table 9. Cisco Catalyst 4500E Series Power-Supply Specifications (Data and Voice)
 1300 WACV (PWR C45-1300ACV) 2800 WACV (PWR C45 2800ACV) 1400 WDC-P (PWR C45-1400DC-P) 4200 WACV (PWR C45-4200ACV) 6000 WACV (PWR C45-6000ACV)
Minimum Cisco IOS Software release required 12.1(12c)EW 12.1(12c)EW 12.1(13)EW 12.2 12.2(52)SG
Minimum Cisco Catalyst Operating System Software required 7.4(1) 7.4(1) 7.5(1) - -
Integrated PoE Yes (up to 800W) Yes (up to 1400W) Up to 7500W (minus power consumed for data) when connected directly to DC power plant Yes (up to 3855W) Yes (up to 4800W)
IEEE 802.3af compliant Yes Yes Yes Yes Yes
Input voltage 100 to 240 VAC (±10% for full range) 200 to 240 VAC (±10% for full range) Data: -48 to -60 VDC 100 to 240 VAC (±10% for full range) 100 to 240 VAC (±10% for full range)
   Inline: -48 to -56 VDC
Input current (rated) 16A at 100 VAC 16A at 200 VAC Data: 31A at -60 VDC Two 12A at 100 VAC or Two 12A at 100 VAC or
 7A at 240 VAC  Inline: 180A at -48VDC Two 12A at 200 VAC Two 16A at 200 VAC
Output current (data) 12V at 84.7A 12V at 113.3A 12V at 120A 12V at 115.3A 12V at 186.9A
 3.3V at 12.5A 3.3V at 12.1A 3.3V at 10A 3.3V at 12.5A 3.3V at 12.5A
Output current (PoE) -50V at 16.7A -50V at 28A -48 or -60 VDC at 140A -50V at 77.1A (200V) -50V at 100.0A (200V)
    -50V at 38A (100V) -50V at 38.5A (120V)
Output power redundant mode (data) 1000W + 40W 1360W + 40W 1360W + 40W 1360W + 40W 2200W + 40W
Output power redundant mode (PoE) 800W maximum per power supply 1400W maximum per power supply Up to 7500W (minus the power consumed for data) 3700W (220V) 4800W (220V)
    1850W (110V) 1850W (110V)
Output power combined mode (data) 1667W 2473W 2473W 2473W 4400W
Output power combined mode (PoE) 1333W (maximum) 2333W 7280W 6700W (220V) 8700W (220V)
    3360W (110V) 3360W (110V)
Heat dissipation 1568 BTU/hour 2387 BTU/hr Data only: 1591 BTU/hr 3580 BTU/hr 2720 BTU/hr
   Data and voice: 2905 BTU/hr
Holdup time 20 ms 20 ms 4 ms 20 ms 20 ms
Number of 802.3af class 2 powered devices supported in redundant mode 106 186 384 384 (200V) 384 (200V)
    245 (100V) 245 (100V)
Number of 802.3af classes 0 and 3 powered devices supported in the redundant mode 48 84 384 223 (200V) 289 (200V)
    111 (100V) 111 (100V)

Table 10. Specifications of Cisco Catalyst 4500E Series
Feature Description
Power-supply indicators and interfaces • Fan cooling: Integrated in hot-inserting or hot-extraction unit
 • Good: Green
 • Fail: Red
 • Support for Simple Network Management Protocol (SNMP) MIB
Environmental conditions • Operating temperature: 32 to 104ºF (0 to 40ºC)
 • Storage temperature: -40 to 167ºF (-40 to 75ºC)
 • Relative humidity: 10 to 90 percent, noncondensing
 • Operating altitude: -60 to 3000m
Regulatory Standards Compliance 
Safety • UL 60950
 • CAN/CSA-C22.2 No. 60950
 • EN 60950
 • IEC 60950
 • TS 001
 • AS/NZS 3260
Electromagnetic compatibility (EMC) • FCC Part 15 (CFR 47) Class A
 • ICES-003 Class A
 • EN55022 Class A
 • CISPR22 Class A
 • AS/NZS 3548 Class A
 • VCCI Class A
 • EN 55022
 • EN 55024
 • EN 61000-6-1
 • EN 50082-1
 • EN 61000-3-2
 • EN 61000-3-3
 • ETS 300 386
Industry EMC, safety, and environmental standards • GR-63-Core Network Equipment Building Standards (NEBS) Level 3
 • GR-1089-Core Level 3
 • EN 50121-4
 • ETS 300 019 Storage Class 1.1
 • ETS 300 019 Transportation Class 2.3 (pending)
 • ETS 300 019 Stationary Use Class 3.1
 • ETS 300 386
Warranty Cisco Catalyst 4500 Power Supplies are covered for five (5) years by the Cisco Limited Lifetime Hardware Warranty. For more information, see this document on
 Note: If you purchased a Cisco Catalyst 4500E Series PoE line card or power supply before May 1, 2009, it is covered by the Cisco 90-Day Limited Hardware Warranty. For more information, see this document on
Service and support Cisco offers lifecycle service and support for the Cisco Catalyst 4500 Series, directly and for resale through Cisco distributors. From implementation to operation and optimization, Cisco offers advanced service and technical support.
Advanced service Cisco Total Implementation Solutions (TIS) offers a full range of implementation solutions, including project management, project engineering, configuration, and staging and rollout coordination; Cisco TIS helps ensure correct installation and deployment. For more information about Cisco TIS, visit:
Technical support Cisco SMARTnet® Online and telephone support augments the customer's operations-staff resources. Support includes the ability to refresh system software at will as well as a range of Advance Replacement hardware options. Cisco SMARTnet Onsite support adds the services of a field engineer, services that can be critical when customer staffing is insufficient or unavailable for parts-replacement activities. For more information about Cisco SMARTnet support, visit:
ROHS compliance ROHS5
Power and MTBF Information
Table 11 gives MTBF numbers for the different power supplies.

Table 11. MTBF Numbers
Part Number Rated MTBF (Hours)
PWR-C45-1300ACV 164,220
PWR-C45-2800ACV 155,822
PWR-C45-4200ACV 331,945
PWR-C45-6000ACV 341,356
PWR-C45-1400DC-P 316,454
PWR-C45-1000AC 250,000
PWR-C45-1400AC 570,530
PWR-C45-1400DC 316,454
Ordering Information
To place an order, visit the Cisco Ordering homepage or refer to Tables 12 through 14.

Table 12. Cisco Catalyst 4500 Power-Supply Ordering Information
Part Number Product Name
PWR-C45-1000AC Cisco Catalyst 4500 1000 WAC Power Supply (Data Only)
PWR-C45-1400AC Cisco Catalyst 4500 1400 WAC Power Supply (Data Only)
PWR-C45-1300ACV Cisco Catalyst 4500 1300 WAC Power Supply (PoE)
PWR-C45-2800ACV Cisco Catalyst 4500 2800 WAC Power Supply (PoE)
PWR-C45-1400DC-P Cisco Catalyst 4500 1400 WDC Power Supply with PEM (PoE)
PWR-C45-4200ACV Cisco Catalyst 4500 4200 WAC Power Supply (PoE)
PWR-C45-6000ACV Cisco Catalyst 4500 6000 WAC Power Supply (PoE)
PWR-C45-1400DC Cisco Catalyst 4500 1400 WDC SP Central-Office Power Supply (Triple Input)

Table 13. Cisco Catalyst 4500 Series Power-Cord Options (Data Only)
Power Supply 1000 WAC 1400 WAC 1400 WDC
Region/Product ID PWR-C45-1000AC PWR-C45-1400AC -
Europe CAB-7KACE= CAB-7513ACE= -
International - - -
United States CAB-7KAC= CAB-7513AC= -
Australia CAB-7KACA= CAB-7513ACA= -
Italy CAB-7KACI= CAB-7513ACI= -
United Kingdom CAB-7KACU= CAB-7513ACU= -
Argentina CAB-7KACR= CAB-7513ACR= -
South Africa - CAB-7513ACSA= -

Table 14. Cisco Catalyst 4500 Series Power-Cord Options (Data and Voice)
Power Supply 1300 ACV 2800 WACV 4200 WACV 6000 WACV 1400 WDC-P External Power
Region and product ID PWR C45 1300ACV PWR C45 2800ACV PWR C45-4200ACV PWR C45-6000ACV PWR C45-1400DC-P 2500W PWR-4502
Europe CAB-7513ACE= CAB-AC-2800W-EU= CAB-CEE77-C19-EU CAB-CEE77-C19-EU - CAB-4502AC-EU
International N/A CAB-AC-2800W-INT= CAB-I309-C19-INT CAB-I309-C19-INT - -
United States CAB-7513AC= CAB-AC-2800W-TWLK= CAB-US515P-C19-US CAB-US515P-C19-US - CAB-4502AC-US
  CAB-AC-2800W-6-20= CAB-L620P-C19-US CAB-L620P-C19-US
   CAB-US620P-C19-US CAB-US620P-C19-US
Australia CAB-7513ACA= Same as international CAB-A3112-C19-AUS CAB-A3112-C19-AUS - -
Italy CAB-7513ACI= Same as international CAB-C2316-C19-IT CAB-C2316-C19-IT - -
Argentina CAB-7513ACR= Same as international Same as international Same as international - -
South Africa CAB-7513ACSA= Same as international Same as international Same as international - -
Israel - - CAB-S132-C19-ISRL CAB-S132-C19-ISRL - -
* The 1300-WACV and 1400-WAC power supplies can use the power cords for the 2800-WAC power supply.
Cisco Limited Lifetime Hardware Warranty
The Cisco limited lifetime hardware warranty (LLW) includes 10-day advance hardware replacement for as long as the original end user owns the product. Table 15 describes the limited lifetime hardware warranty.
Your formal warranty statement, including the warranty applicable to Cisco software, appears in the Cisco information packet that accompanies your Cisco product. We encourage you to review carefully the warranty statement shipped with your specific product before use.
For additional information on warranty terms, visit
Adding a Cisco technical services contract to your device coverage provides benefits not available with warranty including access to the Cisco Technical Assistance Center (TAC), a variety of hardware replacement options to meet critical business needs, updates for licensed Cisco IOS Software, and registered access to the extensive knowledge base and support tools. Table 16 describes the benefits and features of Cisco technical services.
For information about Cisco Technical Services, go to

Table 15. Limited Lifetime Hardware Warranty
 Cisco Limited Lifetime Hardware Warranty1
Warranty Duration As long as the original end user continues to own or use the product except for the fan and power supply, which are limited to 5 years.
EoL Policy In the event of discontinuance of product manufacture, Cisco warranty support is limited to 5 years from the announcement of discontinuance.
Hardware Replacement Cisco or its service center will use commercially reasonable efforts to ship a replacement part within 10 business days after receipt of the RMA request and confirmation that a replacement part is appropriate response. Actual delivery times may vary depending on customer location.
Effective Date Hardware warranty commences from the date of shipment to the customer (and in case of resale by a Cisco reseller, not more than 90 days after original shipment by Cisco).
TAC Support None. Access Warranty allows guest access only to
1 Cisco reserves the right to refund the purchase price as its exclusive warranty remedy.
Cisco and Partner Services
Enable the innovative, secure, intelligent edge in the Borderless Network Architecture using personalized services from Cisco and our partners. Through a discovery process that begins with understanding your business objectives, we help you integrate the next-generation Cisco Catalyst 4500-E Series Switches into your architecture and incorporate network services onto that platform. Sharing knowledge and leading practices, we support your success every step of the way as you deploy, absorb, manage, and scale new technology. Choose from a flexible suite of support services designed to meet your business needs and help you maintain high-quality network performance while controlling operational costs. Table 16 shows the Cisco technical services available for Cisco Catalyst 4500-E Series Switches.
For additional information about Cisco services, visit

Table 16. Cisco Technical Services for Cisco Catalyst 4500-E Series Switches
Technical Services
Cisco SMARTnet Service
• Around-the-clock, global access to the Cisco Technical Assistance Center (TAC)
• Unrestricted access to the extensive resources, communities, and tools
• Next-business-day, 8x5x4, 24x7x4, and 24x7x2 advance hardware replacement2 and onsite parts replacement and installation available
• Ongoing operating system software updates within the licensed feature set1
• Proactive diagnostics and real-time alerts on Smart Call Home enabled devices
Cisco Smart Foundation Service
• Next business day advance hardware replacement as available
• Business hours access to SMB TAC (access levels vary by region)
• Access to SMB knowledge base
• Online technical resources through Smart Foundation Portal
• Operating system software bug fixes and patches
Cisco Focused Technical Support Services
Three levels of premium, high-touch services are available:
• Cisco High-Touch Operations Management Service
• Cisco High-Touch Technical Support Service
• Cisco High-Touch Engineering Service
Valid Cisco SMARTnet or SP Base contracts on all network equipment are required.
1.Cisco operating system updates include the following: maintenance releases, minor updates, and major updates within the licensed feature set.
2.Advance hardware replacement is available in various service-level combinations. For example, 8x5xNBD indicates that shipment will be initiated during the standard 8-hour business day, 5 days a week (the generally accepted business days within the relevant region), with next business day (NBD) delivery. Where NBD is not available, same day ship is provided. Restrictions apply; please review the appropriate service descriptions for details.

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