cui.com

date 12/21/2021

│ page 6 of 10

CUI Inc

│ SERIES: VOF-550C │ DESCRIPTION: AC-DC POWER SUPPLY

MECHANICAL

parameter

conditions/description

min

typ

max

units

dimensions

open frame models: 127 × 76.2 × 40.5 [5.0 x 3.0 x 1.594 inch]

covered models: 130.0 × 86.0 × 43.0 [5.118 x 3.385 x 1.692 inch]

with rear fan: 160.0 × 86.0 × 43.0 [6.299 x 3.385 x 1.692 inch]

mm

mm

mm

weight

open frame models

covered models

with rear fan

490

605

645

g

g

g

cooling

natural convection or 25 CFM forced air

MECHANICAL DRAWING

Open-frame

units: mm [inch]

general tolerance: ±1.00 [±0.039]

pin 7,8 connector tightening torque: M4, 1.2N·m (max)

PIN-OUT

PIN

Function

Mating Connector

1

AC (L)

Housing: JST VHR or equivalent

Contact: JST SVH-21T-P1.1 or equivalent

2

NC

3

AC (N)

4

GND

Contact: JST SPS-21T-250

5

FAN+

CN5: Fan power output port

Housing: TKP 2502 or equivalent

Contact: TKP 8811 or equivalent

6

FAN-

7

+Vo

8

-Vo

9

ADJ

(Trim POT)

CN2: remote sensing signal input port (1-2)

PG signal (3-4)

PIN

Function

Mating Connector

1

RS-

Housing: JST PHD-2*2Y

or equivalent

Contact: JST PHD-TE

or equivalent

2

RS+

3

GND

4

PG

CN6: PS_ON signal input port (3-4)

5Vdc standby (1-2)

PIN

Function

Mating Connector

1

+5V

Housing: JST PHD-2*2Y

or equivalent

Contact: JST PHD-TE

or equivalent

2

GND

3

PS-ON

4

GND

Position

Screw Spec.

L

(recommended)

Torque

(max)

1 ~ 4

M3

2.5mm

0.4 N·m

Note: 1. Class I system 1, 2, 4 positions must be connected to the protective earth ground (

).

2. It is recommended that a minimum distance of 10mm be placed between the PCB edge

and all other components.

Additional Resources: Product Page | 3D Model