1kVA DC-AC Pure Sine Wave Inverter - Low Noise / Ripple0 pages

1000VA Heavy-duty, Industrial Quality Sine Wave Inverter with Very Low Output Noise
CSI 1K-3U3LN Series
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Sinusoidal output voltage
Rugged, industrial quality
Cooling by high quality internal fans
Compact construction
Full electronic protection
Cost-effective construction

This rugged, modular DC/AC inverter system uses a field proven microprocessor controlled high frequency PWM technology
to generate 1000VA output power with pure sine wave output voltage. The inverter is built with internal power modules.
The DC/DC input stage boosts the DC voltage which feeds the DC/AC inverter to generate the required AC output. The
output has a second-stage high performance filter which reduces the residual output ripple to less than 100mVrms (20MHz
BW), delivering a very smooth pure sine wave output. The high frequency conversion enables a compact construction, low
weight and high efficiency. Cooling is by a high quality built-in fan, which draws air into the unit and the exhaust exits at the
terminal side of the unit. Full electronic protection, generous design headroom and the exclusive use of components with
established reliability contribute to high MTBF. The unit is manufactured at our plant under strict quality control.
SPECIFICATIONS
Input Voltage
48Vdc (42‐56V)
110Vdc (90‐130V)
125Vdc (106‐145V)
Please contact factory for other
input requirements
Input Protection
Inrush current limiting
Varistors
Internal safety fuse
Lower voltage than the specified
minimum input will not damage
the unit
Isolation
1700Vdc input to chassis/output
or corresponding to the voltage
requirements
Output neutral is connected to
the chassis internally
Floating output as option
Standards
Designed to meet
C22.2 No. 107.1 - 01,
UL 458 and EN60950-1
EMI
EN 55022 Class A with margins

Output Voltage
115Vac /8.7Arms continuous
at 60Hz or 400Hz; or
230Vac/ 4.3Arms continuous
at 50Hz
Output neutral is connected to
the chassis internally
Isolated floating output optional
Other outputs available on request
Output Wave Form
Sinusoidal
Total Harmonic Distortion
Less than 5% at full load
Line/Load Regulation
± 5% combined from 5% load to full
load. A tighter regulated version is
also available
Load Crest Factor
2 at 90% load
Output Ripple/Noise
Less than 100mVrms (20MHz BW)
by internal second stage output
filter
Output Overload Protection
Current limiting with short circuit
protection
Thermal shutdown with automatic
recovery in case of insufficient
cooling

Output Overvoltage Protection
140Vac (for 115Vac output) or
280Vac (for 230Vac output) by
internal supply voltage limiting
Efficiency
Input voltage dependent
Typically 80% at full load
Operating Temperature Range
0o C to +50°C for full specification
Extended temperature ranges
available
Temperature Drift
0.05% per °C over operating
temperature range
Cooling
High quality built-in fan
draws air into the unit
Environmental Protection
Basic ruggedizing
Full ruggedizing and conformal
coating as option
Humidity
5 - 95% non-condensing
MTBF
Min. 110,000 hours at 45ºC
Demonstrated MTBF is
significantly higher
Fan excluded

Indicators
Green high intensity output ON LED
on the internal DC bus visible
through the perforation on the
terminal side
Control Input
None
Remote shutdown as option
Alarm Output
None
Optional output fail alarm
Package/Dimensions (H x W x D)
3U3: 132 x 187 x 407 mm
(5.2 x 7.4 x 16") including connectors
Mounting holes are clear
19” rack‐mount version as option
Weight
Approximately 6.5 kg (14lbs)
Connections
Input: terminal‐block with 9.5mm spacing
Outputs: terminal‐block with 9.5mm
spacing
RoHS Compliance
Fully compliant
Warranty
Two years subject to application
within good engineering practice.

Please note that the above specifications set only generic guidelines for the design.
Customizing and enhancements are possible. Please contact us with your specific requirements.
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.
ABSOPULSE ELECTRONICS LTD
110 Walgreen Road, Ottawa. Ontario. K0A 1L0. CANADA
Tel: +1-613-836-3511 | Fax: +1-613-836-7488
E-mail: absopulse@absopulse.com | http://www.absopulse.com
For more information, please see:
March 13, 2014/TS/ CL
http://www.absopulse.com/Absopulse_SineWaveConverters.php

Made in Canada