Dell 300W Power Supply Unit 100–240V AC 6A 50/60 Hz L300EGM-00 0TG7YF TG7YF

The Dell 300W Power Supply Unit (Part Number: 0TG7YF / TG7YF) is a proprietary replacement PSU engineered specifically for Dell enterprise-class systems, most notably the Dell Precision 3630 Tower Workstation and Dell PowerEdge T40 Server. Designed to deliver stable and efficient power for mid-range computing environments, this unit provides reliable DC output, optimized airflow integration, and essential electrical protections for professional workloads.

Additional related part numbers include L300EGM-00 and PS-5301-6DA, which correspond to the same hardware platform or OEM variants used across Dell production batches.

Identification & Compatibility

• Manufacturer: Dell
• Dell Part Numbers (DP/N): 0TG7YF, TG7YF, CN-0TG7YF
• Model Number: L300EGM-00
• P/N: PS-5301-6DA
• System Compatibility:
  • Dell Precision 3630 Tower Workstation
  • Dell PowerEdge T40 Tower Server
• Form Factor: Proprietary Dell tower layout (custom-fit design for chassis airflow and mounting)

Electrical Input & Output

• Maximum Output Power: 300 Watts
• Input Voltage: 100–240V AC (auto-switching)
• Input Current: 6A
• Input Frequency: 50/60 Hz
• Efficiency Rating: Up to 85% (80 PLUS Bronze / Gold depending on batch)
• Power Factor Correction: Active PFC

DC Output Rail Configuration

• +12V Rail B: 16.5A
• +12V Rail C: 16.0A
• +5.1V Rail: 13.0A
• +3.3V Rail: 10.0A
• +5.1V Standby: 4.0A

Connector Interfaces

• Motherboard Power: 1 × 24-pin ATX
• CPU Power: 1 × 4-pin (or 4+4 pin depending on configuration)
• SATA Power Connectors: 2 to 4 (for SSD/HDD drives)
• PCIe Connector: 1 × 6-pin (limited GPU support, varies by batch)
• Slimline Optical: 1 × Mini-SATA connector

Hardware & Safety Features

• Integrated low-noise cooling fan for thermal management
• Built-in protections:
  • Overvoltage Protection (OVP)
  • Overcurrent Protection (OCP)
  • Short-Circuit Protection (SCP)

Physical Dimensions

• Approximate size: 5.91 × 3.54 × 3.15 inches
• Designed for precise fit within Dell tower chassis

Workstations

• Fully compatible with Dell Precision 3630 Tower
• Not compatible with newer/larger Precision systems (3640, 3650, 3660, etc.) due to design differences

Servers

• Fully compatible with Dell PowerEdge T40 Tower Server
• Not compatible with rackmount servers (R-series) or larger tower servers (T440, T640)

Graphics Cards (GPU Support)

• Ideal: Low-power GPUs under 75W (no external power required)
  • Examples: GTX 1650, RX 6400
• Conditional: Single 6-pin GPUs under ~120W
• Unsupported: GPUs requiring 8-pin or higher power connections

The Dell 0TG7YF / L300EGM-00 300W PSU is a reliable, energy-efficient power solution tailored for select Dell workstation and entry-level server systems. Its proprietary design ensures perfect fit and stable operation in supported machines, while its 300W capacity makes it ideal for professional environments using moderate-performance CPUs, storage devices, and entry-level graphics cards.