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S273-K20
The ABB S273-K20 is a three-pole circuit breaker designed for reliable circuit protection. With a current rating of 20 amps, this device operates at voltages of 277 to 480V AC and supports a K-curve response for efficient trip characteristics.
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Technical specifications for S273-K20
| Manufacturer | ABB |
|---|---|
| Product Type | Circuit Breaker |
| Product Line | Other |
| Part Number | S273-K20 |
| Poles | 3 Poles |
| Current | 20 Amps |
| Voltage | 277/480V AC |
| K-Curve | Supported |
| Mounting | DIN Rail Mounting |
| IP Rating | IP20 |
| Min. Operating Temperature | 0 degrees Celsius |
| Max. Operating Temperature | 40 degrees Celsius |
| Max. Relative Operating Humidity | 80%, non-condensing |
| Min. Storage Temperature | 0 degrees Celsius |
| Max. Storage Temperature | 50 degrees Celsius |
| Max. Relative Storage Humidity | 80%, non-condensing |
The S273-K20 circuit breaker from ABB is engineered to provide optimal protection for electrical circuits. This unit is configured with three poles and operates at a current rating of 20 amps. It supports an input voltage range of 277 to 480V AC, making it versatile for various applications.
Designed with a K-curve, this circuit breaker ensures effective discrimination between normal operating conditions and fault conditions, which allows it to respond appropriately to overloads and short circuits. Weighing just 1 lb, the S273-K20 is compact and suitable for mounting on DIN rails, which simplifies integration into existing panels.
The unit's IP20 rating indicates that it is primarily intended for indoor use, providing a level of dust protection but no water ingress protection. In terms of temperature and humidity tolerances, the device operates effectively in environments ranging from 0 to 40 degrees Celsius while supporting a relative humidity level of up to 80%, as long as it remains non-condensing.
When considering storage conditions, the breaker can endure temperatures between 0 and 50 degrees Celsius with the same humidity guidelines. Overall, the ABB S273-K20 circuit breaker is a robust component for electrical safety and reliability in various industrial and commercial settings.
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