The Delta DPS-495CB-1 is an enterprise-grade 495W hot-pluggable power supply unit designed for mission-critical server and data center environments. Featuring 80 Plus Platinum certification, this PSU operates at up to 94% efficiency under typical load conditions, significantly reducing energy consumption and heat generation in densely populated server racks. The wide AC input range of 100-240V at 50-60Hz ensures global compatibility across diverse geographical locations. Hot-plug functionality enables IT personnel to replace or upgrade the power supply without system shutdown, essential for maintaining uptime in production environments. The module supports redundant configurations, allowing multiple units to operate in parallel for enhanced reliability and failover protection. Integrated safety mechanisms including overcurrent, overvoltage, short-circuit, and thermal protection ensure operational safety. With tight voltage regulation and low ripple and noise characteristics, the DPS-495CB-1 delivers consistent power to critical server components, reducing the risk of system crashes and hardware failures. The 1U form factor and rear-to-front airflow design optimize thermal management in enterprise server architectures.
495W 80 Plus Platinum efficiency.
Hot-plug support for zero-downtime maintenance.
100-240V global AC input compatibility.
Redundant dual-PSU failover capable.
1U form factor rear-to-front airflow.
OCP/OVP/SCP/OTP integrated protection.
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Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.
Rear-to-Front (R-to-F) with integrated intelligent fan
Cooling System
Integrated intelligent fan with thermal management
Output Voltage
+12V @ 41.25A ∆ +12VSB @ 3.0A
Hot-Plug Support
Yes - hot-swappable design
Redundancy Support
Compatible systems
The DPS-495CB-1 is primarily designed for Arista 7050SX series cloud-scale switches and compatible with Arista 7000 series platforms. Also compatible with enterprise 1U servers and switches requiring 495W hot-plug power supplies with +12V primary output. Supports global AC input voltages (100-240V) for worldwide deployment.
Arista 7050SX Series
Model: 7050SX
Form factor: 1U Rack-mount
Generation: Cloud-scale switches
Primary application - designed for Arista 7050SX series fixed configuration leaf and spine switches
Arista 7000 Series
Model: 7050QX/7060CX
Form factor: 1U Rack-mount
Generation: Enterprise switches
Compatible with 7050QX and 7060CX switch platforms
Enterprise Servers Generic 1U servers
Model: 1U form factor servers
Form factor: 1U Rack-mount
Generation: Universal
Compatible with any 1U server requiring 495W hot-plug PSU with +12V primary output
Best for
Enterprise Server Deployment
Mission-critical business servers requiring reliable, high-efficiency power with hot-swap capabilities for seamless maintenance and component replacement without interrupting operations.
Data Center Infrastructure
Details
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New, certified-refreshed and OEM stock with guaranteed compatibility, backed by warranty on every part.
Arista 7050SX series switches ∆ Enterprise servers
Power Consumption
Output Power
495W continuous output
Power Factor
0.99 at 50% load ∆ 0.99 at full load
AC Input Current
6.5-3A at 100-240V
AC Input Voltage
100-240V, 50-60Hz
Efficiency Rating
80 Plus Platinum - up to 94% at 50% load
Full Load Efficiency
93.62% at 527W input
Input Harmonic Distortion
7.98% ITHD at 50% load
Typical Efficiency at 50% Load
94.21% at 262W input
High-density rack configurations in data centers where 80 Plus Platinum efficiency reduces cooling requirements and operational costs while maintaining consistent power delivery.
Redundant Power Systems
Dual-PSU redundancy configurations providing failover protection and uninterrupted operation of critical applications during power supply maintenance or failure events.
Mission-Critical Computing
Financial services, healthcare, and telecommunications infrastructure requiring maximum uptime and reliability with advanced protection mechanisms against power anomalies.
Global Server Deployments
International data centers and branch offices operating across regions with varying AC input voltages (110V to 220V) requiring universal compatibility without performance degradation.
Virtualization Environments
VMware vSphere and Hyper-V hosts requiring stable power delivery for multiple virtual machines with consistent performance and minimal thermal output.
Frequently asked questions
What is the efficiency rating of the DPS-495CB-1 and how does it impact data center costs?
The DPS-495CB-1 is 80 Plus Platinum certified with up to 94% efficiency at 50% load, delivering 247W output from 262W input. This Platinum-tier efficiency reduces wasted energy by approximately 6% compared to Gold-rated supplies, translating to significant cost savings in large-scale deployments. For a data center with 100 units consuming 50kW, Platinum efficiency saves approximately 3kW in wasted heat, reducing cooling costs and power consumption.
Can the DPS-495CB-1 be replaced without shutting down the server?
Yes, the DPS-495CB-1 features hot-plug functionality allowing replacement or upgrade without system shutdown. This enterprise-critical capability enables IT personnel to perform maintenance during normal business hours without scheduling downtime. In redundant dual-PSU configurations, one unit can be replaced while the secondary unit maintains uninterrupted power delivery to the server.
What AC input voltages does this power supply support?
The DPS-495CB-1 supports a wide AC input range of 100-240V at 50-60Hz frequency, enabling deployment across North American (110V), European (220V), and international power standards. The supply automatically adapts to regional voltage standards while maintaining consistent 495W output and 94% efficiency, eliminating the need for voltage converters or region-specific variants.
What protection mechanisms are included in the DPS-495CB-1?
The power supply includes integrated overcurrent protection (OCP), overvoltage protection (OVP), short-circuit protection (SCP), and thermal overload protection (OTP). These safety mechanisms prevent damage from power surges, voltage spikes, and circuit faults, ensuring operational safety for both the PSU and connected server components while extending equipment lifespan.
Does the DPS-495CB-1 support redundant configurations?
Yes, the DPS-495CB-1 supports redundant dual-PSU configurations where two or more units operate in parallel. In case of failure in one power supply, the redundant unit immediately takes over, preventing downtime and ensuring uninterrupted operation of critical applications. This failover capability is essential for mission-critical server deployments.
What is the output voltage specification for this power supply?
The DPS-495CB-1 provides +12V at 41.25A primary output and +12VSB (standby) at 3.0A. The supply features tight voltage regulation with low ripple and noise characteristics, ensuring consistent power delivery to critical server components. This stable power reduces the risk of system crashes, memory errors, and hardware failures in enterprise environments.
What form factor and airflow design does the DPS-495CB-1 use?
The DPS-495CB-1 is a 1U server-compatible hot-plug module with rear-to-front (R-to-F) airflow design and integrated intelligent fan. The compact 1U form factor optimizes rack space utilization in high-density data centers, while the rear-to-front airflow improves thermal management and cooling efficiency in server rack environments.
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