LS Susol Series - Service Conditions; Normal and Special Service Conditions

■ Normal service conditions
If under ordinary conditions the following normal working conditions are all satisfied, Susol ACB should be
used under this condition unless otherwise specified.
1) Ambient temperature
A range of max. +40℃to min. -5℃ is recommended. However, the average temperature of 24 hours
does not exceed +35℃.
2) Altitude
2,000m or less.
3) Environmental conditions
The air must be clean, and the relative humidity does not exceed 85% at a max. of +40℃and 90% at
20℃. Do not use and store in presence of corrosive or ammonia gas.
(H2S ≤ 0.01ppm, SO2 ≤ 0.01ppm, NH3 ≤ a few ppm)
4) Installation conditions
When installing Susol ACB, refer to catalogue or the installation instructions in the instruction manual.
5) Storage temperature
A range of max. +60℃ to min. -20℃ is recommended.
6) Replacement
Approx. 15 years (depends on number of breaking of over current or service condition). Please see
maintenance and inspection for further detail.
2. Special service conditions
In the case of special service condition, modified air circuit breakers are available. Please specify when
ordering. Service life may be shorter, it depends on service conditions.
1) Special environmental conditions
If it is used at high temperature and/or high humidity, the insulation durability and other electrical or
mechanical features may deteriorate. Therefore, the breaker should be specially treated. Moisture
fungus treatment with increased corrosion-resistance is recommended. When using products under
this condition, please contact LS service team or nearest sales representatives.
2) Special ambient temperature
If the ambient temperature exceeds +40
℃
, reduce the continuous conducting current for a use
referring to Table. A.
3) Special altitude
If it is used at the 2,000m or higher the heat radiation rate is reduced and the operating voltage,
continuous current capacity and breaking capacity are decreased. Moreover the durability of the
insulation is also decreased owing to the atmospheric pressure. Contact us for further detail.
B. Service condition
1. Normal/Special service condition
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