Cirrus SR20 - Page 237

Cirrus Design Section 7
SR20 Airplane and Systems Description
P/N 21399-004 7-53P/N 21399-004 7-53
Figure 7-11
Electrical System Schematic - Serials 2016 thru 2240 (1 of 2)
30A
BAT 2
SWITCH
BAT 2
AVIONICS
SWITCH
20A
8A
8A
20A
VOLT REG
BAT 1
SWITCH
EXTERNAL
POWER
MAIN DIST BUS 2
50A
50A
80A
BAT 1
RELAY
30A
30A
30A
STARTER
SWITCH
AVIONICS
NON-ESSENTIAL
RELAY
30A
30A
STARTER
125A
EXTERNAL
POWER RELAY
STARTER
RELAY
LANDING
LIGHT
LANDING LIGHT
SWITCH
7.5A
BAT 1
ALT 1
RELAY
MAIN DIST BUS 1
30A
ALT 1
F B
100A
VOLT REG
MASTER CONTROL UNIT
ALT 1
SWITCH
DME / ADF
AVIONICS BUS
AUDIO
PANEL
WEATHER
/ DATA LINK
TRAFFIC
XPONDER
STDBY
ATTD #2
MFD #2
MAIN BUS 1
CABIN
LIGHTS
FUEL QTY
KEYPADS
/ AP CTRL
AP SERVOS
AVIONICS
ESSENTIAL BUS 2
ENGINE
INSTR
STALL
WARNING
PITCH
TRIM
ROLL
TRIM
GPS NAV
GIA 1
COM 1
ESSENTIAL BUS 1
ADC 1
AHRS 1
PFD #1
STDBY
ATTD #1
ESSENTIAL
POWER
BAT 2
A/C BUS 1
ALT 1
MFD #1
MAIN BUS 3
12V DC
OUTLET
EVS
CAMERA
GPS NAV
GIA 2
COM 2
MAIN BUS 2
AHRS 2/
(ADC 2)
PFD #2
FUEL
PUMP
AVIONICS
FAN 2
ALT 2
A/C BUS 2
CABIN
FAN
CABIN AIR
CONTROL
NAV
LIGHTS
STROBE
LIGHTS
NON-ESSENTIAL BUS
PITOT
HEAT
FLAPS
STARTER
AVIONICS
FAN 1
RECOG
LIGHTS
ALT 2
SWITCH
CIRCUIT BREAKER PANEL
SR20_FM07_2805A
ESSENTIAL DIST BUS
30A
30A
ALT 2
F B
80A
50A
Revision A1