G1268-0550WNA – 550W CRPS Power Supply Tailored for Advanced Server and Telecom Systems
The G1268-0550WNA power supply is designed to meet the demands of server, storage, and telecommunication infrastructures. It features a compact 1U CRPS-standard form factor (185 x 73.5 x 40 mm), perfectly suited for space-constrained, high-density environments.
This redundant DC/DC unit delivers a robust 12V output at 45.8A alongside a 12V standby current of 2.1A, providing reliable power continuity. It supports a wide input voltage range from 36 to 72Vac, enabling versatile global deployment.
Equipped with digital control and a PMBus 1.2 interface, it allows precise real-time monitoring and remote management, enhancing system control. Active Power Factor Correction (PFC) ensures efficient power use and system stability.
An intelligent fan control system balances effective cooling with minimized noise emission. The reverse airflow design further supports adaptable system integration.
Certified under UL, CE, FCC, CB, and CCC standards, the G1268-0550WNA meets rigorous global safety and electromagnetic compatibility (EMC) standards for dependable operation.
Features
CRPS-185: 185×73.5x40mm(LxWxH)
Input: 36-72VdC
Hot-plug
Full Digital control
Active Power Factor Correction
Intelligent-thermal Fan Control
N+1 Redundant
Reverse Airflow Option
Applications
Server
Router
Networking
Switches
Telecom
Firewall
Cloud Storage
Approvals
CTUVUS
TuV-Mark
CCC/CQC
FCC
CE
BSMI
BIS
Specifications
| Output Power (W): | 550 |
| Length (mm): | 185 |
| Width (mm): | 73.5 |
| Height (mm): | 40 |
| Mounting Type: | Hot pluggable |
| Minimum Output Current (A): | 0 |
| Maximum Output Current (A): | 45.8 |
| Output Voltage (V): | 12 |
| Minimum Output Power (W): | 0 |
| Maximum Output Power (W): | 550 |
| Minimum Input Voltage (V): | 36 |
| Maximum Input Voltage (V): | 72 |
Model Selection Comparison Table
|
Model |
Power Tier | Behavior | Input | Form Factor | Recommended Use |
| G1268-0150WNA | Entry | Lightweight control & edge logic | DC 48V | CRPS-185 |
Control/management boards |
| Mid | Higher logic + I/O load | DC 48V | CRPS-185 | Edge compute + routing | |
| G1268-0350WNA | Mid-High | Storage + light inference | DC 48V | CRPS-185 |
Micro compute nodes |
| High | Mixed control + small AI | DC 48V | CRPS-185 | Industrial MEC | |
| G1268-0550WNA | Peak | Multi-board + service layer | DC 48V | CRPS-185 |
Telecom/DC clusters |
Deployment Scenarios
The G1268-0550WNA stands as the highest output configuration in the G1268 DC-DC 48V family, built for edge servers, AI inference nodes, network security clusters, storage-rich appliances, and telecom equipment requiring stronger continuous and transient power headroom.
This model supports multi-VM workloads, gateway routing+NAT+IPS combinations, NVMe cache acceleration, and PoE-converged deployments, where power margin directly impacts uptime stability and scaling potential.
With superior 12V DC delivery, it suits traffic-dense nodes, MEC edge POPs, micro-cloud deployments, hybrid inference + I/O architectures, and scenarios where future expansion or workload growth is expected — making it the strategic choice when 460W becomes limiting.
|
Scenario |
Workload Pattern | Why 550W Tier Fits |
| Edge server stack | Multi-VM + inference |
Large power pool for expansion |
|
Security/firewall cluster |
DPI + routing + VPN | Handles encryption + throughput load simultaneously |
| NAS + NVMe cache | Mixed random I/O |
Stable rails during sustained disk or SSD bursts |
|
Telecom rack 48V |
Long-runtime POP nodes | DC ecosystem compatibility |
| MEC inference device | Local AI workloads |
Supports continuous tensor bursts |
|
Growth-ready deployments |
Workload scaling | Higher tier prevents future PSU bottleneck |
Power Architecture & Reliability Design
The G1268-0550WNA represents the highest DC-DC output tier within the G1268 platform, extending usable headroom for larger compute instances, heavier network processing, storage acceleration layers, and continuous POP node operation. It is designed for environments where workloads remain active around the clock and where stability under sustained draw is more critical than short-term peak capability.
Built on an optimized 48V-to-12V conversion stage, the power architecture maintains tight ripple control during prolonged high-load operation. This allows stable rail behavior during NVMe burst caching, encrypted throughput events, inference spikes, sustained disk pool activity, and multi-container orchestration inside compact or power-constrained systems. Even when traffic, acceleration, and storage events overlap, voltage regulation remains predictable and controlled.
Thermal and electrical design are tuned for telecom deployments, IDC micro-cluster nodes, and remote cabinets where airflow is limited and maintenance intervals are long. Efficient heat spreading, low-shock inrush behavior, and consistent regulation help protect shared DC buses and downstream components during restart or recovery cycles. As the top tier of the G1268 series, the G1268-0550WNA delivers maximum DC-DC capacity without sacrificing efficiency or long-term reliability in edge and access-layer infrastructure.
Power Operating Notes
|
Reference Condition |
Suggested Guidance |
| Long-runtime edge clusters |
Maintain airflow path for thermal margin |
|
Heavy virtualization |
Track PMBus data for load growth planning |
| NVMe acceleration/cache |
Verify ripple margin under sustained I/O |
|
High-burst inference |
Ensure thermal slope stability over time |
| Remote telecom cabinets |
Dust-free intake improves longevity |
|
High traffic routing nodes |
Monitor intake temperature in warm regions |
| Scalability planning |
This is the peak model before higher series |
|
Performance fatigue avoidance |
Periodic inspection recommended |
FAQ
Q1. Where does G1268-0550WNA fit in deployment?
High-power DC-48V edge servers, inference nodes, telecom POP installations, clustered storage gateways.
Q2. Why pick 550W instead of 460W or 350W?
More continuous capacity + transient stability, ideal for growth-ready workloads or VM density.
Q3. Is it suitable for continuous 24/7 runtime?
Yes — architecture supports always-on micro-IDC and telecom deployments.
Q4. Can it support sustained inference load?
Yes — the headroom is designed for higher compute + I/O concurrency.
Q5. Does it require DC-48V input?
Correct — designed for telecom and DC backbone ecosystems.
Q6. How does ripple behave under NVMe bursts?
Maintains stable 12V rail with controlled ripple envelope.
Q7. When should I move to another series?
For heavier AI or hyperscale edge, consider G1232 / G1482 / G1302 tiers.
Q8. Is it ideal for cabinet-restricted deployments?
Yes — cooling path fits compact DC rooms or distribution nodes.