FSP400-70PFL(SK) 400W PS2/ATX Industrial AC/DC Switching Power Supply
- Technology
- IPC industrial computer power supplies
- Partner
- FSP Protek
The FSP400-70PFL(SK) is a high-reliability 400 W industrial ATX power supply designed for mission-critical computer systems. It features active PFC and high-quality components for dependable continuous operation in factory automation, server, and workstation environments. The unit supports a wide 100–240 V AC input range at 50–60 Hz for global compatibility. It delivers stable DC output with low ripple and noise to help protect sensitive hardware. Its standard PS2/ATX form factor simplifies installation and replacement in compatible industrial PC chassis. Integrated protection features include OCP, OVP, OTP, and short-circuit protection with auto-recovery after faults. Each unit is 100% Hi-Pot tested and burn-in tested at 50°C ambient to verify safety and durability. With an MTBF of 100,000 hours at 25°C ambient, it is well suited for 24/7 industrial use. The power supply also meets key global safety and EMC requirements with certifications including UL/cUL, CE, FCC, CCC, CB, TÜV, UKCA, and 80 Plus Bronze.
The FSP400-70PFL(SK) is a 400 W industrial PS2/ATX power supply built for reliable operation in industrial PCs, servers, and workstation platforms. Its standard ATX form factor, active PFC design, and worldwide AC input support make it a practical choice for system builders seeking stable power delivery, safety compliance, and easy integration into existing chassis.
Range features
A high level overview of what this range offers
- 80 Plus Bronze efficiency – Improves energy efficiency to reduce waste heat and operating costs.
- Standard PS2/ATX form factor – Fits compatible industrial PC and server chassis for straightforward installation or replacement.
- Active PFC design – Supports efficient power draw and helps meet international power quality requirements.
- Low ripple and noise output – Delivers clean, stable DC power for sensitive computing hardware.
- Integrated 80 mm cooling fan – Provides effective thermal management for dependable operation.
- Comprehensive protection suite – Includes OCP, OVP, OTP, and SCP to protect the PSU and connected equipment.
- Auto-recovery after faults – Resets automatically when safe conditions return, reducing maintenance downtime.
- 100% Hi-Pot tested – Verifies electrical isolation and product safety on every unit.
- Burn-in tested at 50°C ambient – Confirms suitability for demanding high-temperature environments.
- 100,000-hour MTBF at 25°C – Supports long-term reliability for 24/7 industrial applications.
What’s in this range?
All the variants in the range and a comparison of what they offer
Specification | Value |
Model | FSP400-70PFL(SK) |
Form factor | PS2 / ATX standard |
Rated output power | 400 W |
AC input range | 100–240 V AC, 50–60 Hz |
Efficiency class | 80 Plus Bronze |
Active PFC | Yes |
Cooling | Internal 80 mm fan |
Protection circuits | OCP, OVP, OTP, SCP with auto-recovery |
MTBF | 100,000 hours @ 25°C ambient |
Operating temperature | 0°C to 50°C ambient |
Dimensions (L × W × H) | 150 × 86 × 140 mm |
Output connectors | 1 × 20+4-pin ATX, 1 × 4+4-pin EPS12V, 1 × 6+2-pin PCIe, 3 × Molex, 2 × SATA, 1 × FDD |
Certifications | UL/cUL, CE, FCC, CCC, CB, TÜV, UKCA, 80 Plus Bronze |
FAQs
for FSP400-70PFL(SK) 400W PS2/ATX Industrial AC/DC Switching Power Supply
The FSP400-70PFL(SK) supports a full AC input range of 100–240 V AC at 50–60 Hz. It is suitable for worldwide use and adapts to common mains power environments without manual voltage switching.
Yes. The unit includes active power factor correction (PFC) to improve input power quality, support efficient current draw, and help meet international power regulations.
This model includes OCP, OVP, OTP, and SCP. These protections help safeguard both the power supply and connected hardware during abnormal operating conditions. The PSU is designed to shut down on fault and automatically recover once conditions return to normal.
Yes. It is designed for industrial and server applications that require continuous reliability. With a 100,000-hour MTBF at 25°C and burn-in testing at 50°C ambient, it is well suited for demanding long-duration operation.
The power supply follows the standard PS2/ATX form factor and measures 150 × 86 × 140 mm. It is intended to fit compatible ATX power supply bays in industrial PC and server chassis.
The FSP400-70PFL(SK) is 80 Plus Bronze certified, providing efficient operation that helps reduce energy waste and heat generation. It also carries multiple safety and compliance approvals including UL/cUL, CE, FCC, CCC, CB, TÜV, and UKCA.
The PSU uses an internal 80 mm fan for cooling and is designed for low ripple and noise on the DC outputs. This helps maintain stable voltage delivery and supports the performance and longevity of connected components.
