Why Choose the ABB S303P-Z16NA Miniature Circuit Breaker?
The ABB S303P-Z16NA, product code 2CDS383103R0468, is a high-performance miniature circuit breaker (MCB) designed to protect industrial electrical installations against overloads and short circuits. Part of the proven ABB System pro M compact S300P series, it combines precise fault detection, high breaking capacity and reliable long-term performance in demanding applications.
Featuring a Type Z tripping characteristic, the S303P-Z16NA provides a sensitive instantaneous response suited to circuits containing electronic components, semiconductor devices, instrumentation and industrial automation equipment. Its thermal release protects against sustained overloads, while the magnetic release rapidly disconnects the circuit during short-circuit conditions.
With a rated current of 16 A, a 3P+N configuration and a rated operational voltage of up to 415 V AC, this circuit breaker is suitable for three-phase systems that require three protected phases and simultaneous neutral switching. Its compact DIN rail format, integrated trip indication and compatibility with ABB System pro M compact accessories support efficient panel design, installation and maintenance.
Key Advantages
- Dependable overload and short-circuit protection.
- 16 A rated current for industrial control and electronic circuits.
- Type Z tripping characteristic for sensitive electrical equipment.
- 3P+N configuration with three protected phases and switched neutral.
- High 25 kA breaking capacity for demanding installations.
- Compatible with ABB System pro M compact accessories.
Key Features
- ABB System pro M compact S300P series.
- 16 A nominal current rating.
- Type Z instantaneous tripping characteristic.
- Three protected poles plus switched neutral.
- Rated operational voltage up to 415 V AC.
- 25 kA ultimate short-circuit breaking capacity.
- Integrated trip indicator for clear fault identification.
- Dual DIN rail release for easier installation and removal.
Precision Protection for Sensitive Electrical Circuits
Miniature circuit breakers disconnect electrical circuits automatically when excessive current is detected. The ABB S303P-Z16NA combines delayed thermal tripping for overload protection with rapid electromagnetic tripping for short-circuit protection, helping safeguard cables, control equipment and connected devices.
The sensitive Type Z characteristic makes this MCB particularly suitable for circuits where relatively low fault currents could damage electronic components. It is therefore well suited to PLC systems, instrumentation, semiconductor equipment and industrial control applications where rapid fault clearance and service continuity are important.
Typical Applications
- PLC and industrial automation systems.
- Electronic control panels.
- Instrumentation and measurement equipment.
- Semiconductor and sensitive electronic circuits.
- Industrial machinery and OEM equipment.
- Three-phase systems requiring simultaneous neutral switching.
