Why Choose the ABB 2CDS383103R0538 S303P-Z32NA Miniature Circuit Breaker?
The ABB 2CDS383103R0538, also identified as the S303P-Z32NA, is a premium miniature circuit breaker (MCB) designed to provide reliable protection against overloads and short circuits in demanding industrial electrical installations. As part of the proven ABB System pro M compact S300P series, it combines a high breaking capacity with dependable performance for machinery, automation systems and industrial power distribution.
Featuring a Type Z tripping characteristic, this breaker is particularly suited to protecting sensitive electronic equipment, semiconductor devices, PLCs and control circuits where rapid magnetic tripping is essential. The combined thermal and magnetic trip mechanism helps minimise damage caused by overloads and short-circuit faults while ensuring reliable operation.
With a rated current of 32 A, a 3P+N configuration and a rated operational voltage of up to 415 V AC, the S303P-Z32NA is ideal for industrial switchboards, machinery control panels and commercial electrical installations. Its compact DIN rail mounting design and 25 kA breaking capacity make it suitable for demanding industrial applications.
Key Advantages
- Industrial miniature circuit breaker for overload and short-circuit protection.
- 32 A rated current for industrial electrical systems.
- 3P+N pole configuration for three-phase installations with neutral.
- Type Z tripping characteristic for sensitive electronic and control circuits.
- 25 kA short-circuit breaking capacity for demanding installations.
- Integrated trip indication for quick fault diagnosis.
- Fail-safe bi-directional terminals simplify installation.
- Compatible with ABB System pro M compact accessories.
Key Features
- ABB System pro M compact S300P series.
- S303P-Z32NA model.
- 32 A rated current.
- 415 V AC rated operational voltage.
- 3P+N pole arrangement.
- Type Z tripping characteristic.
- 25 kA ultimate short-circuit breaking capacity.
- 50 / 60 Hz operation.
- DIN rail mounting.
- Contact position and trip indication.
Reliable Protection for Sensitive Electrical Equipment
The ABB S303P-Z32NA automatically disconnects electrical circuits whenever overload or short-circuit conditions occur, helping protect wiring, control equipment and connected electrical devices. Its industrial construction delivers dependable long-term performance in demanding operating environments.
Its Type Z tripping characteristic is specifically intended for sensitive electronic circuits where fast fault clearance is essential. This makes it an excellent choice for PLC systems, instrumentation, semiconductor equipment, communication systems and precision industrial control applications.
Typical Applications
- Industrial control panels.
- PLC and automation systems.
- Electronic control equipment.
- Semiconductor and instrumentation circuits.
- Commercial electrical distribution.
- Factory automation.
- Machine building and OEM equipment.
