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Circuit Breakers for Use in Particular Applications
Corrosion Resistant Enhanced Type for Special Environments
- Feature
- Especificación
- Normas
- Discontinued
Corrosion Resistant Enhanced Type
for Special Environments
Circuit breakers are used in a wide range of situations,
and the environments in which they are used vary significantly.
For applications that differ from standard usage conditions,
we offer an assortment of circuit breakers for each type of special environment.
| Special environment | Special purpose | Especificación | Modelo | |||
|---|---|---|---|---|---|---|
| MCCB | ELCB | Circuit protector | ||||
| Low temp. |  Cold storage warehouses |
Low temp. breakers | Operation characteristics change under low temp. environment. | NF-C/S/H series (*1, *2) |
NV32-SV NV63-CV/SV/HV NV125-CV/SV/HV NV250-CV/SV/HV |
CP30-BA |
| High temp. High humid. |
 Chemical plants |
Tropical treatment Disyuntores |
Under high humidity, withstand voltage and other electrical performance may be reduced. Moisture proof, mildew proof and corrosion resist breakers are available. |
NF-C/S/H series (*3, *4, *5, *6, *7) |
NF-C/S/H series (*3, *4, *5, *6, *7) |
CP30-BA |
| Corrosive gas Salt |
 Petrochemical plants |
Corrosion resist breaker | In case using breakers in environment filled with corrosive gas and salt, breaker with corrosion resisted boxes are recommended to use. If corrosion gas concentration is under standard value, corrosion resisted breaker can also be used. Gas concentration limit for standard breakers: H2S (0.01ppm), SO2 (0.05ppm) HCl (0.05ppm), Cl2 (0.01ppm) NH3 (0.25ppm) |
NF-C/S/H series (*3, *4, *5, *6, *7) |
NF-C/S/H series (*3, *4, *5, *6, *7) |
CP30-BA |
| Dust |  Cement factory |
Boxed breakers | In case dusty environment, boxed breakers are recommended to use. If breakers are to be installed in explosion proof case, use less ammonia molded breakers. |
－ | ||
- Notas:
- *1SHT and UVT are not applicable.
- *2Electronic breakers are not applicable.
- *3250A frame electronic breakers are not applicable.
- *4AL, AX, SHT, UVT, TBL for 1000, 1200A frame ELCBs are not applicable.
- *5ELCBs for special voltage are not applicable.
- *6AL and AX for minute load are not applicable.
- *7UVT are not applicable.
