PSUs

The Eaton APR48-3G is a compact, high-efficiency telecom rectifier module (also known as Access Power Rectifier) that converts AC input to stable 48V DC output, delivering up to 1800W (nominal 2000W in some references) for telecommunications, data centers, and critical 48V DC power systems requiring reliable, energy-saving rectification.
This rectifier module plugs into Eaton's 3G DC power systems (compatible with SC100/SC200 controllers), providing intelligent, high-density power conversion with peak efficiency and wide operating range for network access applications like cellular base stations, Wi-Fi nodes, customer premises equipment, and roadside cabinets.
It is typically used in telecom operator sites, base stations, and edge facilities where energy cost reduction, high power density, and operation in harsh conditions (-40°C to +70°C with derating) are priorities for continuous 24/7 DC supply.
The APR48-3G excels in performance with 1800W output at 48V (adjustable 43–57.5V), >96% peak efficiency (92% typical at 220/240V), wide AC input (175–275V full power up to 50°C), and constant power output characteristic for optimal load handling.
Reliability is enhanced by >0.99 power factor, advanced protections (over-current, over-voltage, over-temperature, short-circuit), fast hot-swap online expansion, and intelligent digital signal processing for predictive monitoring and fault isolation.
Available primarily as refurbished or used units (legacy rectifier from ~2010s era, with newer models available), refurbished modules are tested to Eaton standards and often pulled from decommissioned DC systems.
Eaton provides multi-year warranties on original units (now expired for legacy); refurbished market options vary by seller (typically 90 days to 1 year); eco-friendly through >96% peak efficiency, wide efficiency curve reducing energy waste, and RoHS compliance.
As an Eaton-branded APR48-3G module (2000W-class output, 208/240VAC input compatible), it is a proven energy-saving rectifier for 48V DC telecom and critical power applications.

• The IBM 74Y5811 (Feature Code FC 7740, CCIN 51C8) is a high-capacity 1725W AC Power Supply designed for IBM Power Systems servers, providing redundant, reliable power to high-performance computing environments requiring substantial wattage for multi-core processors and dense configurations.
• This power supply serves as a hot-pluggable, redundant PSU in supported IBM Power servers, converting AC input to stable DC output to support maximum system performance and high availability with N+1 or N+N redundancy.
• It is typically deployed in IBM Power 750 (8233-E8B) and Power 755 (8236-E8C) servers (POWER7-based systems from ~2010 era), where multiple PSUs are used to power high-core-count configurations, large memory, and I/O-heavy workloads.
• The IBM 74Y5811 delivers 1725W continuous output, wide 100–240V AC input range (50/60 Hz), high efficiency, and active power factor correction (PFC) for reduced energy waste and heat in data center environments.
• Reliability is ensured by hot-swap capability (zero-downtime replacement in supported systems), over-current/over-voltage/over-temperature/short-circuit protections, integrated status LEDs, and seamless integration with IBM Power Systems firmware for monitoring and fault reporting.
• Available primarily as refurbished or used units (as the Power 750/755 and 74Y5811 are legacy hardware from ~2010–2015, with End-of-Support status long expired), refurbished PSUs are widely sold, tested for full output and functionality, and often pulled from decommissioned IBM Power systems.
• IBM originally provided multi-year warranties (now expired); refurbished market options vary by seller (typically 90 days to 1 year); the PSU supports eco-friendly operation through efficient design and RoHS compliance.
• As an IBM-branded 74Y5811 power supply (1725W AC for 8233-E8B / 8236-E8C), it is a direct replacement for maintaining high-availability power in legacy POWER7-based IBM servers.

• The Eaton APR48-ES is a high-efficiency Energy Saver Rectifier Module that converts AC input to stable 48V DC output, delivering up to 2000W of power for telecommunications, data centers, and critical power systems requiring reliable, low-energy DC supply.
• This rectifier module functions as a plug-in component in Eaton DC power systems (e.g., 3G systems, SC200/SC100 controllers), providing intelligent digital signal processing for peak efficiency (>96%) and reduced carbon footprint while maintaining high power density in compact form.
• It is typically deployed in telecom base stations, customer premises equipment, roadside cabinets, and network operator sites where energy savings, wide operating temperature range, and fast online expansion (hot-swappable) are critical for 24/7 operation.
• The APR48-ES excels in performance with 2000W output at 48V, wide efficiency curve (>95% from 30–100% load), constant power output characteristic (48–57.5V), and support for input voltages from 185–275V AC (full power up to 50°C) or reduced power down to 90V.
• Reliability is strengthened by >0.99 power factor, advanced protections (over-current, over-voltage, over-temperature, short-circuit), fast on-line rectifier expansion, and operation from -40°C to +70°C (derating above 50°C), ensuring uptime in harsh environments.
• Available primarily as refurbished or used units (legacy rectifier from ~2010s era, with newer models available), refurbished modules are tested to Eaton standards for full functionality and often pulled from decommissioned DC power systems.
• Eaton provides multi-year warranties on original units (now expired for legacy models); refurbished market options vary by seller (typically 90 days to 1 year); eco-friendly through peak efficiency >96%, wide efficiency curve reducing energy waste, and RoHS compliance.
• As an Eaton-branded APR48-ES module (2000W output, 208/240VAC input compatible), it is a proven energy-saving rectifier for 48V DC power systems in telecom and critical infrastructure.