Why Choose the ABB S303P-Z4NA Miniature Circuit Breaker?
The ABB S303P-Z4NA, product code 2CDS383103R0338, is a premium miniature circuit breaker (MCB) designed to provide reliable protection against overloads and short circuits in industrial electrical installations. As part of the trusted ABB System pro M compact S300P series, it offers exceptional breaking capacity, dependable performance and long service life for demanding industrial applications.
Featuring a Type Z tripping characteristic, the S303P-Z4NA is specifically designed for the protection of highly sensitive electronic equipment and semiconductor devices. Its fast magnetic tripping response provides excellent protection for circuits with low fault current tolerances, making it ideal for industrial automation, control systems and electronic equipment.
With a rated current of 4 A, a 3P+N configuration and a rated operational voltage of up to 415 V AC, the S303P-Z4NA is well suited to three-phase industrial distribution systems requiring simultaneous neutral switching. Its compact DIN rail mounting design enables quick installation inside electrical distribution boards and control panels.
Key Advantages
- Reliable overload and short-circuit protection.
- 4 A rated current for sensitive industrial control circuits.
- Type Z tripping characteristic for electronic and semiconductor protection.
- 3P+N configuration with switched neutral.
- 25 kA breaking capacity for demanding industrial installations.
- Compatible with ABB System pro M compact accessories.
Key Features
- ABB System pro M compact S300P series.
- 4 A nominal current rating.
- Type Z tripping characteristic.
- Three protected poles plus switched neutral.
- Rated operational voltage up to 415 V AC.
- 25 kA rated short-circuit breaking capacity.
- Integrated trip indication for simplified fault identification.
- DIN rail mounting for fast installation.
Precision Protection for Sensitive Electrical Equipment
Miniature circuit breakers automatically disconnect electrical circuits when overloads or short circuits occur. The ABB S303P-Z4NA combines thermal overload protection with a highly sensitive magnetic trip mechanism to safeguard electronic equipment, control systems and electrical installations from damaging fault conditions.
Its Type Z tripping characteristic is intended for applications where rapid fault clearance is essential to protect sensitive electronic components. Combined with its high breaking capacity and industrial construction, the S303P-Z4NA is well suited to demanding automation and control applications.
Typical Applications
- Industrial automation systems.
- PLC and control panels.
- Electronic and semiconductor equipment.
- Instrumentation and measurement circuits.
- Industrial distribution boards.
- OEM machinery and manufacturing equipment.
