Why Choose the ABB S303P-C6NA Miniature Circuit Breaker?
The ABB S303P-C6NA (2CDS383103R0064) is a high-performance three-phase plus switched neutral (3P+N) miniature circuit breaker (MCB) designed to protect industrial and commercial electrical installations against overloads and short circuits. As part of the proven ABB S300P series, it delivers exceptional fault-breaking performance and dependable operation for distribution boards, switchgear, automation systems and OEM machinery.
Manufactured to international IEC and UL standards, the S303P-C6NA features a compact DIN rail design, fail-safe cylinder-lift screw terminals and flexible top or bottom supply connections. Its switched neutral configuration enables simultaneous isolation of the neutral conductor while protecting all three phase conductors.
With a rated current of 6 A, a Type C tripping characteristic and a rated short-circuit breaking capacity of 25 kA, the S303P-C6NA is ideally suited to protecting three-phase control circuits, automation equipment, instrumentation and industrial distribution systems requiring neutral isolation.
Key Advantages
- Industrial-grade 3P+N miniature circuit breaker.
- 6 A rated current for industrial control and distribution circuits.
- Type C tripping characteristic for moderate inrush currents.
- 25 kA short-circuit breaking capacity.
- Switched neutral provides simultaneous isolation of all conductors.
- Compact DIN rail mounting for easy installation.
Key Features
- ABB S300P series.
- 3 protected poles + switched neutral (3P+N).
- 6 A rated current.
- Type C tripping characteristic.
- Rated operating voltage: 415 V AC.
- 25 kA rated short-circuit breaking capacity (Icn).
- 100 kA Icu according to IEC 60947-2.
- Rated insulation voltage: 500 V.
- Rated impulse withstand voltage: 6 kV.
- Fail-safe cylinder-lift screw terminals.
Reliable Protection for Three-Phase Control Circuits
The ABB S303P-C6NA automatically disconnects electrical circuits during overload or short-circuit conditions, protecting cables, control equipment and connected devices while helping minimise downtime and maintenance costs.
Its Type C tripping characteristic accommodates moderate inrush currents, while the switched neutral pole provides complete circuit isolation, making it suitable for industrial automation, instrumentation, machinery and three-phase distribution circuits.
Typical Applications
- Industrial automation systems.
- Three-phase control panels.
- Instrumentation circuits.
- OEM machinery.
- Distribution boards with switched neutral.
- Industrial and commercial electrical installations.