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QT20.481 Datasheet, PDF (1/23 Pages) PULS GmbH – THREE PHASE INPUT
Q-Series
QT20.481
48V, 10A, THREE PHASE INPUT
POWER SUPPLY
• 3AC 380-480V Wide-range Input
• 2-Phase Operation also Possible
• Efficiency up to 95.4%
• Width only 65mm
• 150% Peak Load Capability
• Active Power Factor Correction PFC
• Active Input Transient Filter
• Full Power Between -25°C and +60°C
• Minimal Inrush Current
• DC-OK Relay Contact
• Quick-connect Spring Clamp Terminals
• 3 Year Warranty
1. GENERAL DESCRIPTION
The most outstanding features of this Dimension Q-
Series DIN-rail power supply are the high efficiency
and the small size, which are achieved by a
synchronous rectification and further novel design
details.
Large power reserves of 150% support the starting
of heavy loads such as DC motors or capacitive loads.
In many cases this allows the use of a unit from a
lower wattage class which saves space and money.
High immunity to transients and power surges as
well as low electromagnetic emission makes usage in
nearly every environment possible.
The integrated output power manager and virtually
no input inrush current make installation and usage
simple with no jumpers and switches necessary.
Diagnostics are easy due to the dry DC-ok contact, a
green DC-ok LED and red overload LED.
Unique quick-connect spring-clamp terminals allow a
safe and fast installation and a large international
approval package for a variety of applications makes
this unit suitable for nearly every situation.
3. ORDER NUMBERS
Power Supply QT20.481 48-55V Standard unit
Accessory
ZM1.WALL
ZM14.SIDE
YR2.DIODE
UF20.481
Wall mount bracket
Side mount bracket
Decoupling module
Buffer unit
2. SHORT-FORM DATA
Output voltage
Adjustment range
Output current
Output power
Output ripple
Input voltage
Mains frequency
AC Input current
Power factor
AC Inrush current
Efficiency
Losses
Temperature range
Derating
Hold-up time
Dimensions
DC 48V
48-55V
10A
15A
480W
720W
< 100mVpp
AC 380-480V
50-60Hz
0.79 / 0.65A
0.94 / 0.95
typ. 3A peak
95.4 / 95.0%
23.1 / 25.3W
-25°C to +70°C
12W/°C
typ. 22 / 22ms
65x124x127mm
Continuous, 48V
For typ. 4s, 48V
Continuous, 48V
For typ. 4s, 48V
20Hz to 20MHz
±15%
±6%
At 3x400 / 480Vac
At 3x400 / 480Vac
At 3x400 / 480Vac
At 3x400 / 480Vac
Operational
+60 to +70°C
At 3x400 / 480Vac
WxHxD
4. MARKINGS
IND. CONT. EQ.
UL 508
EMC, LVD
UL 60950-1
GL
Marine
Class I Div 2
Oct. 2006 / Rev. 1.0 DS-QT20.481-EN
All parameters are specified at 48V, 10A, 3x400Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
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