ABB S303P-Z32NA 32A Type Z miniature circuit breaker with 3P+N configuration and 25 kA breaking capacity for industrial electrical protection.
£249.05
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.
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.
| Current | 32 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | System pro M compact S300P |
| Model | S303P-Z32NA |
| Product ID | 2CDS383103R0538 |
| EAN | 4016779076838 |
| Product type | Miniature circuit breaker |
| Rated current | 32 A |
| Number of poles | 3P+N |
| Protected poles | 3 |
| Neutral pole | Switched |
| Tripping characteristic | Type Z |
| Rated operational voltage | 415 V AC |
| Voltage type | AC/DC |
| Rated frequency | 50 / 60 Hz |
| Rated insulation voltage | 500 V |
| Impulse withstand voltage | 6 kV |
| Ultimate short-circuit breaking capacity | 25 kA at 415 V AC |
| Breaking capacity at 440 V AC | 15 kA |
| Protection rating | IP20 |
| Mounting type | 35 mm DIN rail |
| Terminal capacity | 0.75 to 35 mm² solid, 0.75 to 25 mm² flexible |
| Operating temperature | -40 to +70 °C |
| Approximate dimensions (H × W × D) | 88 × 70 × 69 mm |
| Approximate weight | 0.50 kg |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
It protects sensitive three-phase electrical circuits against overloads and short circuits, particularly electronic control systems and industrial automation equipment.
The ABB S303P-Z32NA has a rated current of 32 A.
Type Z breakers provide rapid magnetic tripping, making them ideal for protecting sensitive electronic devices and semiconductor equipment.
The breaker provides a rated ultimate short-circuit breaking capacity of 25 kA at 415 V AC.
The S303P-Z32NA mounts directly onto a standard 35 mm DIN rail inside electrical distribution boards and industrial control panels.
ABB System pro M compact S300P miniature circuit breakers are trusted worldwide for providing dependable protection, exceptional breaking performance and long service life in industrial and commercial electrical installations.
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2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...