Revision C, Last Updated 03/28/17
Economical 400W Arc
Lamp Power Supply
UV0902 / UV1241
This compact switch-mode power source
provides constant power to a 400 Watt
mercury vapor or metal halide medium
pressure arc lamp. The supply is available in
a 100/120VAC (UV0902) or a 200/240VAC
(UV1241)
version
to
accommodate
international use. A "standby" switch signal
is provided for reducing output power while
the system is idle. The unit also contains an
un-isolated 12 Volt output for powering a
local cooling fan. An integrated lamp igniter
is provided which eliminates the need for an
external high-voltage starter.
FEATURES

Two input voltage range options available
The unit is available in a 90 to 132VAC or 180 to 265VAC input range making the Uvitron lamp power supply
easy to use in any country.

Integrated high voltage lamp starter
The unit’s lamp starter provides up to 10kV, enough voltage for igniting virtually any lamp. This high voltage
capability allows instant hot lamp restarts after short line voltage interruptions (2 seconds typical). The igniter
also has a timeout shutdown feature for protection with defective or disconnected lamps.

Lamp power regulation
To maintain constant power, the system divides the desired output power by the actual lamp voltage. This
provides the appropriate current to the lamp to compensate for lamp and line voltage variations. The result is
repeatable curing times as the lamp ages, when the lamp is replaced, or when the input voltage fluctuates.

Standby power mode
The unit has an external standby input for reducing lamp power by one half. This can reduce excess heat and
power consumption during idle therefore increasing system reliability, efficiency and reducing ambient
temperature rise.

Status Indicators
An on-board Ready LED is provided which lights to indicate that lamp warm-up has completed.
Uvitron International, Inc.  150 Front Street, Unit 4  West Springfield, MA 01089 USA  (413) 731-7835
Web Site: http://www.uvitron.com  Email: [email protected]
All specifications contained herein are preliminary and subject to change without notice
Page 1 of 2
Revision C, Last Updated 03/28/17
TECHNICAL SPECIFICATIONS
Category
Parameter
Value
Conditions/Notes
General
Model
Part Number
Economical 400W Arc Lamp Power Supply
UV0902 (120VAC)
UV1241 (240VAC)
Power Supply
Input Voltage
Input Current (max@low line)
Source Input Frequency
Brownouts
Efficiency
90 to 132VAC
180 to 265VAC
7 Amperes
3.5 Amperes
47 Hz to 63 Hz
80V for 1 minute, system continues to operate normally
93%
(Typical)
Lamp
Lamp Type
Output Voltage
Wave Shape
Lamp Power Regulation
Operation
400 Watt mercury vapor or metal halide
140 ± 10%
75 Hz Quasi Square
(Current / Voltage)
± 1%
Continuous Mode
Low Voltage
Fan Power Supply
12 VDC ± 10%
2 Watts Max (un-isolated)
Protection
Inrush Current Limit
Line Volt Surge Protection
Short Circuit Protection
Open Circuit Protection
Over Temperature Protection
Ignition Timeout Protection
Provided
Provided
Provided
Provided
Provided
Provided
320 seconds typical
Operating Temperature
Storage Temperature
Humidity
EMI RFI – Conducted
EMI RFI – Conducted
0°C to +55°C
0°C to +70°C
90% relative
FCC Class A
FCC Class B
With no condensation
On board filter
With external filter
L x W x H (inches)
Weight (lbs.)
7.25” x 4.25” x 2”
1.5 lbs.
Environmental
Dimensions
Including ¼” standoffs
Uvitron International, Inc.  150 Front Street, Unit 4  West Springfield, MA 01089 USA  (413) 731-7835
Web Site: http://www.uvitron.com  Email: [email protected]
All specifications contained herein are preliminary and subject to change without notice
Page 2 of 2