1000w pfc power supply in 5" x 5" x 11
500VA Sine Wave Variable AC Power Source
Rugged, Industrial Quality
VFC 500 Series
Variable output voltage and frequency
Electronic power factor correction (PFC)
Compact size, light weight
Sinusoidal output voltage
Digital meters for output voltage and frequency
Isolated, floating output
500VA output power
Full electronic protection
Field-proven design topology
The VFC 500 Series is a variable AC power source designed to deliver power at a selectable frequency between 40Hz to
440Hz. The unit uses PWM technology and generates a sine-wave output with typical distortion of less than 5%. The
output voltage is continuously adjustable from 0 to full scale. The input is power factor corrected.
The VFC 500 Series AC power source can be used as a compact AC/AC frequency converter, suitable for a wide range of
applications. It features full electronic protection, high efficiency and low output noise. The unit is fan cooled. The use
of components with established reliability results in a high demonstrated MTBF. The VFC 500 is manufactured at our
plant under strict quality control. Customized versions are also available.
Input Voltage
Universal 95 … 264Vac
47 - 410Hz
Input current 6.6A rms max.
Power Factor
Min. 0.97 at full load for the entire
input range. Meets EN61000-3-2
Input Protection
Inrush current limiting
Internal safety fuse
Lower voltage than the specified
minimum input will not damage
the unit
Input Isolation
2250VDC input to chassis
2250 VDC input to output
8mm spacing
2250VDC output to chassis
Designed to meet
C22.2 No. 107.1 - 01,
UL 458 and EN60950
EN 55022 Class A
as a minimum
Output Voltage
0…264Vrms range; max. current
4Arms; max power 500VA
Output frequency
40 …440Hz in one band
1Hz step
50, 100, 200, 400Hz ‘hot’
push buttons
Output Overload Protection
Current limiting with short circuit
Thermal shutdown with automatic
recovery in case of insufficient
Hiccup at 4.8Arms
Output Overvoltage Protection
280Vac by internal supply voltage
Frequency Stability
Typically 80% at full load
Output Wave Form
Total Harmonic Distortion
Less than 5% at full load
Line/Load Regulation
Maximum ± 5% of Vout max
from no load to full load
Load Crest Factor
Maximum 3.0 at 90% load
Output Ripple/Noise
High frequency ripple is less
than 500mVrms (20 MHz BW)
Fan excluded
Digital meters for output voltage
and frequency
Control Input
Switch ON/OFF
Alarm Output
Operating Temperature Range
0o C to +50°C for full specification
without derating.
Temperature Drift
(for output voltage level)
0.05% per ° C over operating
temperature range
Min. 120,000 hours at 45ºC
Demonstrated MTBF is
significantly higher
Dimensions (W x H x D)
185 x 141 x 356 mm
7.3” x 5.54” x 14” enclosed case
4.kg (9 lb)
Built-in fan
Input: IEC inlet connector
Output: banana sockets on frontpanel
Environmental Protection
Basic ruggedizing
Full ruggedizing and conformal
coating as option
RoHS Compliance
Fully compliant
5 - 95% non-condensing
Two years subject to application
within good engineering practice
Enhancements to these general specifications can be accommodated upon request. Specifications are subject to change
Designer and manufacturer of quality ac-dc power supplies and battery chargers, converters, inverters, dc-output UPS systems, complete rack mount
systems and DC-input fluorescent lamp inverters since 1982. Custom or standard. Absopulse is a BABT-proved Facility.
110 Walgreen Road
Ottawa, Ontario. K0A 1L0. CANADA
Tel: (613) 836-3511 Fax: (613) 836-7488
E-mail: absopulse@absopulse.com
Binder Section: DC/AC Inverters / Lab & Test Equipment
December 18, 2008/TS/OP/CL
Made in Canada
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