SC3, SC3(A)
TSO’d 30 VA STATIC INVERTER
(28 Vdc to 400Hz Sinewave)
DESCRIPTION
- The SC3 & SC3(A) are pulse width modulated dc to ac static inverters that provide regulated 400 Hz AC power up to 30 volt amperes.
- An internal trim pot is provided to adjust the output voltage ± 10%
- Circuit protection includes low input voltage shutdown, soft start, high input voltage shutdown, output over voltage limit and output short circuit current limit
Specifications
Input Voltage
28 Vdc NOM., 24 to 32 Vdc
18 Vdc to 36.4 Vdc (Abnormal Range)
Input Current
1.35 Amps typ at 28 Vdc input at FL
0.6 Amps maximum at no load
Output Voltage
SC3: 115 Vac
SC3(A): 26Vac
SC3: 115 Vac
SC3(A): 26Vac
Output Current
SC3: .26 Amps continuous
SC3(A): 1.15 Amps Continuous
SC3: .26 Amps continuous
SC3(A): 1.15 Amps Continuous
Frequency
400 Hz ± 1%
400 Hz ± 1%
Distortion (THD)
3% typical at FL (unity pf) at 28 Vdc 7% maximum for the input range & pf
3% typical at FL (unity pf) at 28 Vdc 7% maximum for the input range & pf
Isolation
Output is isolated from input
Output is isolated from input
Power
30 VA maximum
30 VA maximum
Power Factor
.95 leading to .8 lagging power factor
.95 leading to .8 lagging power factor
Regulation
3% for load, 2% for line and 3% for temperature
3% for load, 2% for line and 3% for temperature
Overload (OL)
Deliver 150% output current for 5 min.
Deliver 150% output current for 5 min.
Protection(OL)
Withstands without damage or degradation load exceeding 150% to an output short circuit. Unit delivers rated output power upon removal of the overload condition
Withstands without damage or degradation load exceeding 150% to an output short circuit. Unit delivers rated output power upon removal of the overload condition
Protection (SC)
Under a output short circuit condition, the input current folds back and the output current is limited to a safe value
Under a output short circuit condition, the input current folds back and the output current is limited to a safe value
Protection (OV)
Output voltage is limited to 145 Vac maximum
Output voltage is limited to 145 Vac maximum
Soft-Start
Minimum soft start delay of 100 mSec at full load is provided during an application of step input voltage to reduce output in rush current.
Minimum soft start delay of 100 mSec at full load is provided during an application of step input voltage to reduce output in rush current.
Shutdown(SD)
Output shuts down when input voltage is below 14 Vdc and above 36.4 Vdc.
Output shuts down when input voltage is below 14 Vdc and above 36.4 Vdc.
Temperature
-55° C to +71° C
-55° C to +71° C
Altitude
55,000FT
55,000FT
Compliance
FAA TSO-C73
FAA TSO-C73
Connector
Unit mates with MS3106A14-6S
Unit mates with MS3106A14-6S
Finish
Gold iridite per MIL-C-5541 Class 1A
Gold iridite per MIL-C-5541 Class 1A
Weight
1 LBS (454 grams)
1 LBS (454 grams)
Size
2.00 H x 3.18 W x 5.00 L inches
50.8 H x 80.8 W x 127.0 L mm
(Less protrusion of connector and screw heads)
