Mfr Part #:

VOF-275-58

Mfr Name: CUI Inc.

The CUI Inc. VOF-275-58 is an open frame AC/DC converter delivering 58V at up to 4.74A (160W natural convection, 275W forced air). It features universal input, PFC, and a compact 5x3x0.75 inch footprint.

Stock on Request

VOF-275-58 Description

Short technical summary and product information.

The CUI Inc. VOF-275-58 is an open frame AC/DC converter designed for commercial ITE applications. It provides a single 58V output with a maximum current of 4.74A. Under natural convection cooling, the unit delivers 160W; with 13 CFM forced air cooling, output power increases to 275W. The converter accepts a universal input voltage range of 80 to 264 Vac at 47 to 63 Hz and includes active power factor correction (PFC) with a power factor of 0.95 at full load. Efficiency reaches up to 92%, reducing power loss and heat generation.

Protection features include over voltage (110-140%), over current (110%), and short circuit protection, all with hiccup mode and auto recovery. The output voltage is adjustable by ±3% via a built-in trim pot. The converter also provides a 12 Vdc / 500 mA fan output for external cooling. Ripple and noise are specified at 580 mVp-p maximum under standard test conditions.

Mechanically, the VOF-275-58 has a compact open frame design measuring 127.0mm x 76.2mm x 19.1mm (5.00" x 3.00" x 0.75") and is chassis mount. It operates over a temperature range of -40°C to 70°C with derating. Safety approvals include EN 60950-1, IEC, and certifications from CB Scheme, EN, FCC, IEC, SIQ, TUV, and UL. The unit complies with standards 55024, 55032 Class B, 60950-1, 61000-3-2, and 61000-3-3.

VOF-275-58 Quick Information

Product Type: AC DC Converter

Canonical Name: CUI Inc. VOF-275-58 AC/DC Converter, 58V Output, 160W (275W Forced Air)

Subcategory: Open Frame

VOF-275-58 Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

VOF-275-58 Features

Universal input 80-264 Vac.
High efficiency up to 92%.
Power factor correction (PFC) included.
Compact open frame design 127x76.2x19.1 mm.
Adjustable output voltage ±3%.

VOF-275-58 Applications

Suitable for ITE (commercial) equipment.
Ideal for industrial control systems.
Used in networking and telecommunications gear.
Can power LED lighting systems.

VOF-275-58 FAQs

7 frequently asked questions generated from this part’s specifications.

What is the operating temperature range of the VOF-275-58?

-40°C to 70°C with derating.

What is the input voltage range?

80 to 264 Vac.

What are the dimensions and mounting type?

127.0mm x 76.2mm x 19.1mm (5.00" x 3.00" x 0.75"), chassis mount.

What is the maximum output power?

160W with natural convection cooling, up to 275W with 13 CFM forced air cooling.

What protections does the VOF-275-58 include?

Over voltage protection (110-140%), over current protection (110%), and short circuit protection, all with hiccup mode and auto recovery.

What is the efficiency of the VOF-275-58?

Up to 92%.

What safety approvals does the VOF-275-58 have?

EN 60950-1, IEC, and approvals from CB Scheme, EN, FCC, IEC, SIQ, TUV, UL.

Category	AC DC Converters
Manufacturer Name	CUI Inc.
Applications	ITE (Commercial)
Approval Agency	CB Scheme, EN, FCC, IEC, SIQ, TUV, UL
Current	2.76 A
Efficiency	92 %
Features	Adjustable Output, PFC, Standby Output, Universal Input
Frequency	47 ~ 63 Hz
Height	19.1mm (0.75")
Length	127.0mm (5.00")
Mounting Type	Chassis Mount
No Load Power Consumption	0.5 W
Number of Outputs	1
Operating Temperature	-40°C ~ 70°C (With Derating)
Output Current	4.74 A
Output Voltage	58 Vdc
Power (Watts)	160W (275W Forced Air)
SVHC Present	Not Present
Standard Number	55024; 55032 Class B; 60950-1; 61000-3-2; 61000-3-3
Temperature Coefficient	±0.05 %/°C
Type	Open Frame
Voltage	80 ~ 264 Vac
Width	76.2mm (3.00")