Delta DRP024V480W1B Series, Technical Data Sheet

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TECHNICAL DATASHEET
CliQ II DIN Rail Power Supply
24V 480W 1 Phase / DRP024V480W1B
□
All parameters are specified at 25°C ambient and AC input unless otherwise indicated.
www.DeltaPSU.com (November 2020, Rev. 07)
12
Power Boost
𝐷𝐷𝐷𝐷𝐷𝐷𝐷𝐷 𝑐𝑐𝐷𝐷𝑐𝑐𝑐𝑐𝑐𝑐 (%) =
𝑇𝑇
𝑃𝑃
𝑇𝑇𝑇𝑇𝐷𝐷𝑇𝑇𝑐𝑐 𝑇𝑇𝑇𝑇𝑇𝑇𝑐𝑐
𝐴𝐴𝐴𝐴𝑐𝑐𝐴𝐴𝑇𝑇𝐴𝐴𝑐𝑐 𝑂𝑂𝐷𝐷𝐷𝐷𝑂𝑂𝐷𝐷𝐷𝐷 𝑃𝑃𝑇𝑇𝑃𝑃𝑐𝑐𝐴𝐴 ( 𝑃𝑃
𝐴𝐴𝐴𝐴𝐴𝐴
) =
( 𝑃𝑃𝑇𝑇𝑃𝑃𝑐𝑐𝐴𝐴 𝐵𝐵𝑇𝑇𝑇𝑇𝐵𝐵𝐷𝐷 × 𝑇𝑇
𝑃𝑃
) + ( 𝑁𝑁𝑇𝑇𝑁𝑁 - 𝑃𝑃𝑐𝑐𝑇𝑇𝑃𝑃 𝑃𝑃𝑇𝑇𝑃𝑃𝑐𝑐𝐴𝐴 × 𝑇𝑇
𝑁𝑁
)
𝑇𝑇𝑇𝑇𝐷𝐷𝑇𝑇𝑐𝑐 𝑇𝑇𝑇𝑇𝑇𝑇𝑐𝑐
OR
𝑁𝑁𝑇𝑇𝑁𝑁 - 𝑃𝑃𝑐𝑐𝑇𝑇𝑃𝑃 𝑃𝑃𝑇𝑇𝑃𝑃𝑐𝑐𝐴𝐴 =
�𝑃𝑃
𝐴𝐴𝐴𝐴𝐴𝐴
× 𝑇𝑇𝑇𝑇𝐷𝐷𝑇𝑇𝑐𝑐 𝑇𝑇𝑇𝑇𝑇𝑇𝑐𝑐� −
(
𝑃𝑃𝑇𝑇𝑃𝑃𝑐𝑐𝐴𝐴 𝐵𝐵𝑇𝑇𝑇𝑇𝐵𝐵𝐷𝐷 × 𝑇𝑇
𝑃𝑃
)
𝑇𝑇
𝑁𝑁

An example of Power Boost and Average Output Power
Power Boost
Peak Power
(W
P
)
Power Boost
Duration (T
P
)
Duty Cycle
Non-Peak
Power (W
N
)
Non-Peak Power
Duration (T
N
)
Total Time
(T)
200% 960 2 sec 5% 455W 38 sec 40 sec
150% 720 5 sec 10% 453W 45 sec 50 sec
150% 720 5 sec 35% 351W 9.3 sec 14.3 sec
120% 576 10 sec 20% 456W 40 sec 50 sec
120% 576 10 sec 35% 428W 18.5 sec 28.5 sec
It is not recommended to prolong the duration of Power Boost to be longer than the specified duty cycle calculation, this may cause
damage to the PSU.
External Input Protection Device
The unit is protected at the L pin, with an internal fuse that cannot be replaced. The power supply has been tested and approved on
20A (UL) and 16A (IEC) branch circuits without additional protection device. An external protection device is only required if the
supplying branch has an ampacity greater than above. Thus, if an external protective device is necessary, or, utilized, please refer a
minimum value of 10A B- or 8A C- characteristic breaker.
Power Boost is the reserve power available
constantly that allows reliable startup to
support sudden and short spike of loads
with high inrush current typically during turn
on to remove the need of more expensive
higher rated power supply unit. After the
output has reached its steady state set
value, the power supply can support surge
loads with a higher short-term power
demand up to 200% of maximum rated load
(I
O
Max), for a maximum duration of 2
seconds, or 150% of maximum rated load
for a maximum duration of 5 seconds. The
Power Boost is also available to repeatedly
basis with according to the condition of an
average (R.M.S) output power shall not
exceed continuous operating condition or
refer to duty cycle calculation below.
Fig. 3 Duty Cycle Calculation