Specifications
|
Input:
|
24 - 30 Vdc, single phase. (see
option H).
|
Output:
|
25.4 - 28.6 Vac, 108-122 Vac
|
Efficiency:
|
50% typical at 27
Vdc input and full resistive load (no options).
|
Line Regulation:
|
Within
0.5% for full input change 24 Vdc to 30 Vdc with load constant.
|
Load Regulation:
|
Within
1.0% for load change of one half to full load with line constant.
|
Wave Form:
|
Sinusoidal
with a 4% maximum harmonic distortion into a resistive load.
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Frequency Stability:
|
±1%
drift with time (within the first 8 hours after 30 seconds warm-up).
|
Frequency Accuracy:
|
±0.5% is initial setting
tolerance.
|
Load Power Factor:
|
Derate
linearly from 100% rated power at unity to 70% rated power at 0.7
power factor lagging or leading.
|
Isolation Voltage:
|
750
Vdc, input to output; 200 Vdc, input to case; 750 Vdc, output to
case.
|
Insulation Resistance:
|
50
Mohms between input and output, input and case, output and case,
when measured at 50 Vdc.
|
Temperature Range:
|
Operating:
-55°C to +100°C maximum, at center of the baseplate. Storage: -65°C
to +125°C, ambient.
|
Temperature Coefficient:
|
0.06%
/ °C from -55°C to +100°C, voltage change, frequency change,
1% maximum.
|
Input Transient Protection:
|
Unit
will withstand 80 Vdc for 0.1 second, in accordance with MIL-STD-704A.
|
Load Transient Response:
|
Output
voltage returns to regulation limits within 5 cycles for a load
change of no load to full load.
|
Load Transient Overshoot:
|
10% maximum from nominal
voltage set point.
|
Short Circuit Protection:
|
Completely
protected against a short circuit of any duration. Unit must be
recycled to restore output to normal when overload is removed.
|
EMI:
|
Units
were designed and built to minimize EMI/EMC emissions, and comply
with the requirements of MIL-STD-461A by virtue of their topology,
construction and enclosure.
|
Reliability:
|
MTBF
is calculated per MIL-HDBK-217D at 50°C baseplate temperature with
maximum operating input voltage and maximum rated output power.
The MTBF at ground benign environment is 156,366 hours and 15,722
hours for air inhabited transport environments. With -ER option
MTBF at ground benign is 907,070 hours and 93,030 for air inhabited
transport environments.
|
Environment:
|
Encapsulated
and hermetically sealed to meet the environmental requirements
of MIL-STD-810C.
|
Connectors:
|
Standard
unit is provided with an input solder 4 pin header. (See option
-A for other connectors.)
|
Weight (Lbs.):
|
Maximum 5.5 lbs. not
including options.
|
Size (inches):
|
A x
B x C
|
|
6.0 x 6.0
x 2.50
|
|
Options
|
A Option:
|
Special Connectors. A military-type hermetically
sealed connector is provided in place of our standard input header.
To order, replace the "D" in the model with "A".
|
E Option:
|
Severe Shock, Acceleration and Vibration. Enables
all units to withstand 60 g's shock, 50 g's acceleration and 30g's
vibration. To order, add "E" after "D" in the
model number.
|
H Option:
|
Wide Input Voltage. Recenters the input voltage
to provide alternate inputs from 18 Vdc to 32 Vdc. To order, add "H" after "D" in
the model number and specify input voltage range in parentheses
after the entire model number.
|
L Option:
|
Remote Turn On/Off. Provides isolated terminals
to turn output on/off with TTL logic signal. To order, add "L" after "D" in
the model number.
|
R Option:
|
Remote Output Adjustment. An adjustment potentiometer
can be remotely located to adjust the output voltage. To order,
add "R" after the "D" in the model number.
|
-ER Option:
|
Provides increased reliability by using higher levels
of military grade components. To order, add "-ER" after
the model number.
|
-4 Option:
|
Frequency Adjustment. Enables output frequency to
be adjusted ±5% by means of an external potentiometer. To order,
add "-4" at the end of the entire model number.
|
OT Option:
|
Option OT turns off input power when conduction
surfaces exceed safe limits. To order, add "OT" after
the "D" in the model number.
|
SN
Series (SN180D)