Why Choose the ABB 2CDS383103R0158 S303P-Z0.5NA Miniature Circuit Breaker?
The ABB 2CDS383103R0158, also known as the S303P-Z0.5NA, is a premium miniature circuit breaker (MCB) engineered to provide dependable protection against overloads and short circuits in industrial electrical systems. As part of the proven ABB S300P System pro M compact series, it combines outstanding fault-breaking performance with compact dimensions, making it ideal for demanding power distribution applications.
The breaker features a 3P+N configuration, protecting all three phase conductors while switching the neutral conductor. Its Type Z tripping characteristic is specifically designed for highly sensitive electronic circuits and semiconductor equipment that require rapid disconnection under fault conditions with very low overcurrent tolerance.
With a rated current of 0.5 A, a maximum operating voltage of 415 V AC and a high 25 kA breaking capacity, the S303P-Z0.5NA delivers exceptional protection for specialist industrial control systems, instrumentation and sensitive electronic equipment. Its compact DIN rail mounting design enables quick installation in switchboards and control panels.
Key Advantages
- Industrial-grade miniature circuit breaker for critical electrical protection.
- 0.5 A rated current with Type Z tripping characteristic.
- 3P+N configuration for three-phase systems with switched neutral.
- 25 kA short-circuit breaking capacity.
- Fast tripping for highly sensitive electronic equipment.
- Compact DIN rail mounting for efficient panel installation.
Key Features
- ABB S300P System pro M compact series.
- 0.5 A rated operational current.
- Type Z tripping characteristic.
- Three protected poles plus switched neutral.
- 25 kA rated breaking capacity (Icn).
- 100 kA ultimate breaking capacity (Icu).
- Suitable for AC/DC applications.
- DIN rail mounting for industrial control panels and switchboards.
Reliable Circuit Protection for Sensitive Electronic Systems
The ABB S303P-Z0.5NA automatically disconnects electrical circuits during overload or short-circuit conditions, protecting valuable electronic equipment, control circuits and instrumentation from damage. The fast-acting Type Z characteristic provides enhanced protection for circuits with very low permissible overcurrent levels.
Designed for demanding industrial environments, the S300P range combines high breaking performance with dependable long-term operation, making it suitable for OEM machinery, automation systems and specialist electronic installations.
Typical Applications
- Industrial automation systems.
- Sensitive electronic control circuits.
- PLC and instrumentation panels.
- Semiconductor manufacturing equipment.
- OEM machinery.
- Industrial switchboards and distribution panels.
