Beechcraft 20138 - Specifications

2-2
SPECIFICATIONS
Preset
Regulated
Voltage
28.5
±0.25
volts
DC
Adjustment
Range
26.7 to
34.0
volts DC
Regulation At
28.5
volts DC,
voltage
will not change
by
more
than
±
0.25
volts
with load
current changes of 0 to 60
amps.
Preset Overvoltage
Tripout 32.0
±1.0
volts DC
Adjustment Range 30.5 to 33.5 volts
DC
Tripout
Delay
50
to
200
milliseconds
Field Current Capability
8
amps
maximum
Field
Circuit Fuse
Two
alternators.
One
2 amp,
fast
blow
in each field lead.
One
alternator.
One
4
amp,
fast
blow
fuse
in the
field
lead.
Temperature•.
Operating
-36°C
to
+72°C
Storage
-55°C
to
+82°C
Altitude
.30,000
feet,
maximum
Connector Type
Bendix
MS-3102A-18-lP
Pin
Connections
A
=
+
Battery
B
=
Field
C
=
Ground
D
=
Overvoltage
Indicator
E
=
Norm. closed to
Pin H
F & G
=
Tripout
contacts,
norm,
closed.
H
=
Latch
contacts,
norm.
open.
I
=
Regulator Input
J
=
Relay
Coil
Weight
Less
than 1.5
lbs.
Dimensions Length
-
5.63" Maximum
Depth
-
3.25"
Maximum
Height
-
2.66" Maximum
Mounting
Centers
Three
point
mounting,
5.06"
x
1.50" (See
Figure
1.1)
Mounting
Hole Diameter 0.281"
2-3