12
Classification
Low
Voltage
Intermediate Voltage High Voltage
Voltage
Ranges
DC ≤ 30v
—
AC ≤ 15v
DC > 30 ≤ 60v
—
AC > 15 ≤ 30v
RMS
DC > 60v
—
AC > 30v
RMS
Vehicle
Application
Conventional Saturn VUE and AURA
Green Line Hybrids
Chevrolet Malibu Hybrid
* GMC Sierra/Chevrolet
Silverado Paral
lel Hybrid
Trucks
Two-mode Hybrid
** GMC Sierra/Chevrolet
Silverado Paral
lel Hybrid
Trucks
* Applicable to 36v DC Hybrid Battery Pack, 36v DC Power Steering System and 36v DC
Starter Generator Control Module (input)
** Applicable to Starter Generator Control Module (inverted APO output) and 120v AC
Accessory Power Outlets (APO)
Electricity is categorized as either low,
intermediate, or high voltage.
• Low voltage – from 0 to 30
volts DC / 0 to 15 volts AC
• Intermediate voltage – from
30 volts or greater to 60 volts
DC / 15 volts or greater to 30
volts AC
• High voltage – any voltage
greater than 60 volts DC / 30
volts AC
Color coding is used to identify the
different levels of voltage – blue for
intermediate and orange for high.
The Saturn AURA Green Line and
Chevrolet Malibu hybrids fall within the
intermediate range.
Two-mode hybrids and GM’s Silverado
and Sierra Parallel Hybrid Trucks are a
combination of intermediate and high
voltage systems (see chart footnote).
DC/AC Voltage Classifications
Note: Presently there are no industry standards to identify intermediate voltage.
GM has chosen BLUE for the cable color.
