Labelling of 33kv indoor circuit breaker

A very specific question!

The labeling of a 33kV indoor circuit breaker typically includes the following information:

1. Manufacturer's name and logo: The name and logo of the manufacturer, such as ABB, Siemens, or Schneider Electric.
2. Model number: A unique identifier assigned by the manufacturer to the specific circuit breaker model, such as "ABB 33kV CB 1000A".
3. Voltage rating: The maximum voltage rating of the circuit breaker, in this case, 33kV.
4. Current rating: The maximum current rating of the circuit breaker, in amperes (A). For example, "1000A" or "2000A".
5. Short-circuit withstand current: The maximum short-circuit current that the circuit breaker can withstand, in amperes (A).
6. Breaking capacity: The maximum current that the circuit breaker can interrupt, in amperes (A).
7. Arcing time: The time it takes for the circuit breaker to interrupt the fault current, in milliseconds (ms).
8. Operating mechanism: The type of operating mechanism used, such as "spring-charged" or "motor-driven".
9. Insulation class: The insulation class of the circuit breaker, such as "F" or "H".
10. Certifications and compliances: Any relevant certifications or compliances, such as "IEC 62271" or "UL 489".
11. Serial number: A unique identifier assigned by the manufacturer to the specific circuit breaker, used for tracking and maintenance purposes.
12. Date of manufacture: The date the circuit breaker was manufactured.
13. Instructions for use: Any specific instructions or warnings for the safe use and operation of the circuit breaker.

Here is an example of what the labeling on a 33kV indoor circuit breaker might look like:

ABB 33kV CB 1000A

• Voltage rating: 33kV
• Current rating: 1000A
• Short-circuit withstand current: 20kA
• Breaking capacity: 15kA
• Arcing time: 10ms
• Operating mechanism: Spring-charged
• Insulation class: F
• Certifications and compliances: IEC 62271, UL 489
• Serial number: 123456
• Date of manufacture: 2022-02-15
• Instructions for use: See manual for safe operation and maintenance.

Please note that the actual labeling may vary depending on the manufacturer and the specific model of the circuit breaker.