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M A I N T E N A N C E , A C C E S S O R I E S
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Accessories
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SmartCS main technical characteristics:
Power supply voltage
Temperature range
Normal operating range smart coil
Inrush power consumption (1)
Continuous service power (1)
Coil monitoring current
Insulation voltage
(1) Indicative value that may vary based on the ambient temperature, but is independent of power supply voltage.
ADVAC® smart coils
The ADVAC 38 kV circuit breaker employs smart coil
switch technology (SmartCS). The SmartCS
functions the same in a circuit as an older-style coil
would, except with added benefits for monitoring
and increased reliability compared to a standard
coil. The smart coil has a high impedance input due
to the onboard electronics. This high impedance
gives the device a lower current draw than
conventional coils, thus having a higher than
expected voltage drop (~60 V for 125 V system)
across the coil during coil supervision. The reduced
power consumption (<100 mA at 125 V) of the
SmartCS during supervision makes it suitable for
constant 24/7 monitoring with the main device in
the open or closed position. This also leads to a
reduce battery bank size when used with backup
systems. Additionally, SmartCS has a much faster
response time than a standard coil in that it
triggers from a voltage threshold for actuation,
whereas standard coils require a large current
increase in the circuit to create the necessary
magnetic force for activation.
The use of the wrong control coils in a circuit
breaker will cause improper operation and may
cause equipment to fail testing criteria.
24 to 48 V DC;
125 to 250 V DC; 120 to 240 V AC
1500 V AC common mode — 1 min.
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Power supply voltage range
-40 °C to +70 °C
65% to 120% rated voltage
60 to 100 W / VA
1.5 W
100 mA
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