Specifications

Information Manual 7-69
Cirrus Design Section 7
SR20 Airplane Description
25A
STARTER
50A
50A
125A
EXTERNAL
POWER
A/C 2
FAN
COMPRESSOR/
CONTROL
BAT 1
SWITCH
LANDING
LIGHT
LANDING LIGHT
SWITCH
15A
30A
ALT 2
SWITCH
BAT 2 SWITCH
AVIONICS
ESSENTIAL RELAY
AVIONICS
NON-ESSENTIAL RELAY
AVIONICS
SWITCH
BAT 1
ALT 1
RELAY
FUEL OIL
ALT 1 ALT 2
PITOT
HEAT
ESSENTIAL
DIST
MAIN DIST
25A
25A
25A
25A
25A
VOLT REG
ALT 2 F
B
ALT 1
F
B
100A
40A
VOLT REG
GPS 2
ANNUN/ENGINE INST
MASTER CONTROL UNIT
CIRCUIT BREAKER PANEL
TURN COORD. #1
AVIONICS
ESSENTIAL
BAT 2
ALT 1
SWITCH
LOW
VOLTS
ATTITUDE #1
HSI /PFD #1
STALL WARNING
BATTERY 2
ALT 2
ESSENTIAL POWER
ESSENTIAL
AUTOPILOT
AVIONICS
COM 1
GPS 1
FUEL PUMP
TURN COORD. #2
MAIN BUS 2
ATTITUDE #2
HSI /PFD #2
CABIN LIGHTS
ALT 1
STARTER RELAY
NON-ESSENTIAL
AVIONICS NON-ESSENTIAL
MAIN BUS 1
PITOT HEAT/
COOLING FAN
12VDC OUTLET
STROBE LIGHTS
NAV LIGHTS
FLAPS
SKYWATCH/
TAWS
COM 2
ENCODER/XPONDER
WEATHER/
STORMSCOPE
AUDIO PANEL
MFD
AVIONICS
FUEL QTY/HOBBS
INST LIGHTS
PITCH TRIM
ROLL TRIM
ICE PROTECTION
Serials 1633, 1639 & subs with optional Blower Fan installed.
Serials 1005 thru 1 581 : 80A fuse.
Serials 1005 thru 1 581 : 100A fuse.
Serials 1359 and subsequent with SRV option: The airplane is equipped with
a single alternator, dual battery electrical system. This configuration is identical
to the dual alternator system except components used in conjunction with the
secondary alternator are removed.
NOTE
SR20_FM07_1722D
Figure 7-13
Electrical System Schematic
March 2010