Datasheet

QTD20.241
Q-Series
24V, 20A, DC INPUT
Mar 2012 / Rev. 1.2 DS-QTD20.241-EN
All parameters are specified at 24V, 20A, 600Vdc input, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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11. FUNCTIONAL DIAGRAM
Fig. 11-1 Functional diagram
+
+
-
-
V
OUT
DC
ok
Output
Over-
Voltage
Protection
Input Filter
Inrush Current
Limiter
Transient Filter
Input
Fuses
(in + and -
pole)
Output
Voltage
Regulator
Power
Converter
Output
Filter
DC ok
Relay
Output
Voltage
Monitor
Output
Power
Manager
Temper-
ature
Shut-
down
Over-
load
DC
ok
+
-
12. FRONT SIDE AND USER ELEMENTS
Fig. 12-1 Front side
Output voltage potentiometer
(multi turn potentiometer)
Open the flap to set the output voltage.
Factory setting: 24.1V
Output Terminals
Quick-connect spring-clamp
terminals, no tools required
+ Positive output
- Negative (return) output
Dual pins per pole
DC ok Relay contact
(NO-contact)
9/22
DC-ok LED (green)
Overload LED (red)
Overload
LED
DC-ok
LED
DC-ok
contact
Normal mode OFF ON Closed
BonusPower
®
mode
OFF ON Closed
Overload
(V
OUT
< 90%)
ON OFF Open
Short-circuit
(V
OUT
= ca. 0V)
ON OFF Open
Over-
temperature
ON OFF
Open
Input Terminals
Quick-connect spring-clamp
terminals, no tools required
+ - Power input
PE (Protective Earth) input
No input power OFF OFF Open
See chapter 13 “Terminals and
Wiring” to choose appropriate
wire gauges
The DC-ok LED and the DC-ok contact
functions are synchronized