Specification Sheet

Stinger is a Power Brand of AAMP Global, Clearwater, Florida 33760 - stingerelectronics.com - aampglobal.com
SGP Series Circuit Breakers
TECHNICAL DESCRIPTION
Tech Support: 800-477-2267
SGP90xxx
200%
150%
100%
50%
0%
% 0F RATED CURRENT
-50º 50º 77º 100º 150º 200º 250º0º
(-45º) (10º)(25º)(38º) (65º) (93º) (121º)(-18º)
TEMPERATURE IN DEGREES F °
(TEMPERATURE IN DEGREES C°)
TEMPERATURE DERATING CURVES
CHART#1
CHART#2
600%
500%
500200100403020151050
400%
300%
200%
100%
TIME VS. PERCENT OF RATED CURRENT
TIME IN SECONDS
% 0F RATED CURRENT
Stinger SGP90xxx series circuit breakers are an
excellent choice for circuit protection when the
ability to easily set/reset/defeat the circuit is
desired. The SGP90xxx series are perfect for
applications were transient loads will meet or even
slightly exceed the load rating (based on time
duration, see chart #1).
The load capability of the breaker is also
temperature dependent and will affect the load
break point and should be taken into consideration
during system design. (see chart #2)
SGP90xxx series breakers have very predictable
characteristics that can be forecasted based on
amperage load, duty cycle and ambient
temperature.
Audio System Example:
In a typical installation in an audio application where
the breaker will be protecting an amplifier circuit.
The transient characteristics of music will see an
amplifier load swing drastically between min and
max of the system when driven hard. An amplifier
that has a full amperage of 150A may swing as high
as 180A + and as low as 2A during use. This will
work out to an average close to half the fuse rating
of the amplifier (75A) and is well within the range of
the circuit breaker (if 150A was selected) to allow
for continuous playing of this system. If there is an
issue with the system, a spike with a longer duration
(fault) will trip the breaker and protect the system.
Extreme Audio System/ Constant Load Example:
In an extreme audio installation or other constant
load application the capacity of the circuit breaker
will decline in direct relation to the time and size of
the load, referencing chart #1. This would apply to
other similar situation like use of inverters and other
constant load devices.