Why Choose the ABB S303P-K3NA?
The ABB S303P-K3NA is a 3P+N miniature circuit breaker from the ABB System pro M compact S300P series, designed to provide dependable circuit protection for suitable AC electrical installations. With a K tripping characteristic, a rated current of 3 A and a rated breaking capacity of 25 kA, it provides reliable protection against overcurrent and short-circuit conditions.
Featuring a switched neutral, the 3P+N configuration provides protection and switching across three phases with the neutral conductor switched. The S303P-K3NA is designed for DIN-rail mounting, supporting straightforward integration into compatible distribution boards, control panels and electrical assemblies.
With its K tripping characteristic, 3 A rated current and high 25 kA breaking capacity, the S303P-K3NA is suited to compatible AC circuits requiring compact multi-pole circuit protection with a switched neutral.
Key Advantages
- Rated current of 3 A for suitable AC circuit protection applications.
- K tripping characteristic for applications requiring the corresponding protection characteristics.
- 25 kA rated breaking capacity for dependable short-circuit protection.
- 3P+N configuration with switched neutral.
- Designed for AC electrical supply.
- DIN-rail mounting for straightforward installation in compatible distribution and control equipment.
- Part of the ABB System pro M compact S300P miniature circuit breaker series.
Key Features
- ABB System pro M compact S300P miniature circuit breaker.
- Model: S303P-K3NA.
- 3P+N configuration with switched neutral.
- K tripping characteristic.
- 3 A rated current.
- 25 kA rated breaking capacity.
- AC supply.
- DIN-rail mounting.
- Switched neutral for the neutral conductor.
- Manufacturer part number: 2CDS383103R0317.
Reliable 3P+N Circuit Protection with Switched Neutral
The ABB S303P-K3NA provides compact 3P+N circuit protection for compatible AC electrical installations. Its 3 A rating and K tripping characteristic make it suitable for applications requiring the corresponding overcurrent protection characteristics.
The switched-neutral configuration enables the neutral conductor to be switched alongside the three phase conductors, while the 25 kA rated breaking capacity provides a high level of short-circuit interruption capability for suitable installations.
Typical Applications
- AC electrical distribution systems.
- Commercial and industrial control panels.
- Distribution boards and electrical enclosures.
- Building electrical installations.
- Three-phase circuits requiring switched-neutral functionality.
- Control and auxiliary circuits.
- General low-voltage AC circuit protection applications.
