500W Regulated Output U Bracket / Enclosed Chassis Mount Semi-Potted AC-DC Switching Power Supply

ARCH AC-DC Switching Power Supply ARF500E

500W Regulated Output U Bracket / Enclosed Chassis Mount Semi-Potted AC-DC Switching Power Supply

ARF500 Series

500W AC to DC Industrial and ITE Switching Power Supply - Rugged Semi-Potted Design for Demanding Environments

The ARCH ARF500 500W Semi-Potted AC-DC Switching Power Supply features a robust semi-potted construction, delivering enhanced resistance to humidity, shock, and dust, while maintaining serviceability. This design significantly improves mechanical durability, making it ideal for harsh environments. Its fanless design under conduction cooling extends system lifespan by removing fan-related failure points—perfect for applications requiring long-term reliability.

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Flexible Cooling Options Up to 500W Output

ARF500 Switching Power Supply is uniquely adaptable with three cooling modes:
● 330W under natural convection (fanless)
● 450W with conduction cooling (fanless)
● 500W with 30CFM forced-air cooling

Compared to similar fanless solutions on the market which typically max out at 350W under conduction cooling—the ARF500 switching power supply delivers 100W more fanless output, enabling higher-performance systems without the noise or failure risk of a fan. This makes it an ideal choice for silent, sealed, or mission-critical applications that require both power and reliability.

High Efficiency with Active Power Factor Correction

The ARF500 switching power supply is built for performance, delivering up to 92% efficiency to reduce power loss and thermal stress on system components. This high efficiency contributes to lower energy consumption and simplifies thermal management, especially in fanless configurations. In addition, the power supply integrates active PFC >0.94, improving overall power quality and enabling cost-effective, high-performance operation across industrial, ITE, commercial, and mechanical systems.

Compact Design with Versatile Output Features

In addition to its space-saving form factor, the ARF500 switching power supply offers 4000VAC input-to-output isolation—outperforming many competing models. It also includes a built-in 12V/0.3A auxiliary output and 5V standby rail, giving engineers more flexibility to power fans, sensors, or standby systems without additional modules.

Wide Operating Range for Harsh Conditions

Built for tough environments, the ARF500 switching power supply supports an impressive operating temperature range from -30°C to +80°C and reliable operation at altitudes up to 5000 meters. These specifications make it a solid choice for industrial and remote-site applications, where temperature extremes and elevation challenges are part of the design equation.

Certified Safety and EMC Compliance

The ARF500 switching power supply is globally certified to UL, IEC, and EN 62368-1 safety standards, offering dependable 4000VAC isolation. It also meets strict EMC requirements without the need for additional external components, minimizing complexity and saving board space.

A Smarter, More Adaptable Power Solution

Combining high output flexibility, fanless reliability, robust construction, and design versatility, the ARF500 switching power supply offers a clear edge over traditional solutions. It's an ideal power supply for engineers seeking performance without compromise in industrial, commercial, and mission-critical systems.

Key Features

U Bracket / Enclosed Package.
Universal Input Range 90 - 264VAC.
High Efficiency up to 92% / 91.5%.
Low Leakage Current < 1.5mA / 264 VAC (Touch Current).
Wide Operating Temperature: Cooling by free air convection
Wide Operating Temperature from -30°C
ARF500U:-30°C ~ +80°C with derating
ARF500E:-30°C ~ +70°C with derating
I/O Isolation: 4000VAC
Operating Altitude 5000M.
Active PFC Function.
Built-in 12V / 0.3A Auxiliary Output (ARF500U).
Standby 5V@1A with Fan, @0.4A without Fan (ARF500U).
Standby 5V@1A (ARF500E).
Safety Approval to UL / IEC / EN 62368-1.
3-Year Product Warranty.

Applications

Industrial Automation Systems
Automotive Electronic Equipment
Automated Ordering Kiosk
Communication Equipment
IoT (Smart City)
Mechanical Equipment

Specification

Series	ARF500U	ARF500E
Dimensions (L x W x H) (Tolerance ± 0.5 mm)	130.0 x 83.0 x 40.0 mm 5.12 x 3.27 x 1.57 inches	130.0 x 83.0 x 62.3 mm 5.12 x 3.27 x 2.45 inches
Cooling Method	Free Air Convection / Conduction Cooling / 30 CFM Fan	Built-in Cooling Fan ON-OFF Control
AC Input Voltage Range	90-264 VAC or 120-370 VDC
AC Inrush Current	< 40 A max. (115 VAC) / < 80 A max. (230 VAC)
Leakage Current	< 1.5 mA / 264 VAC (Touch Current)
Output Voltage Accuracy	± 2%
Output Voltage Adj. Range	± 5% Output Voltage
Ripple & Noise (Vp-p.)	12S, 15S: 160 mV ; 24S: 240 mV ; 48S: 480 mV (typ.)
Over Power Protection	Auto Recovery
Over Voltage Protection	Auto Recovery
Over Temperature Protection	Auto Recovery
Short Circuit Protection	Protection level 1 (nominal) : Continuous, Auto recovery Protection level 2 (instantaneous high current) : Latch
Isolation (Input-Output)	4000 VAC or 5656 VDC
Operating Temperature	-30°C to +80°C	-30°C to +70°C
Temperature Coefficient	± 0.03%/°C (0 ~ 50°C) ; ± 0.06%/°C (-30 ~ 0°C)
Safety Approval	UL / IEC / EN 62368-1
EMI	Conducted: EN 55032 Class B ; Radiated: EN 55032 Class A
EMS	EN 55035