ABB S203P-Z32NA miniature circuit breaker from the System pro M compact S200P range featuring a 3+NP configuration, Z curve and 32 A rated current for sensitive electrical circuit protection.
The ABB S203P-Z32NA is a premium miniature circuit breaker (MCB) from the ABB System pro M compact S200P series, engineered to provide dependable overload and short-circuit protection for low-voltage electrical installations. Featuring a Z-curve tripping characteristic and a 32 A rated current, it is ideally suited to sensitive electrical circuits requiring rapid magnetic tripping, including electronic equipment, PLC control systems and semiconductor devices.
This ABB miniature circuit breaker incorporates a 3+NP pole configuration, providing protection for three phases together with a neutral pole arrangement for three-phase plus neutral installations. The S200P range combines delayed thermal overload protection with electromechanical short-circuit protection, delivering reliable protection whilst limiting fault energy and helping safeguard connected equipment.
Its compact DIN rail mounting design, high breaking capacity and robust construction make the S203P-Z32NA an excellent choice for professional electrical distribution boards, switchgear assemblies and industrial control panels. The manufacturer part number for this model is 2CDS283103R0538.
The ABB S203P-Z32NA automatically disconnects electrical circuits during overload or short-circuit conditions. Its thermal tripping mechanism protects against sustained overloads, while the Z-curve magnetic characteristic provides rapid disconnection where sensitive electronic equipment requires lower magnetic trip thresholds.
This makes the S203P-Z32NA particularly suitable for PLCs, instrumentation, electronic control systems, semiconductor devices and other applications where fast fault clearance helps protect valuable equipment and minimise downtime.
| Current | 32 A |
|---|---|
| Phase | Three Phase |
| Manufacturer | ABB |
| Series | System pro M compact S200P |
| Model | S203P-Z32NA |
| Manufacturer part number | 2CDS283103R0538 |
| Product type | Miniature circuit breaker |
| Rated current | 32 A |
| Tripping characteristic | Z curve |
| Number of poles | 3+NP |
| Number of protected poles | 3 |
| Rated operational voltage | 400 V AC |
| Rated insulation voltage | 440 V |
| Frequency | 50 / 60 Hz |
| Rated ultimate short-circuit breaking capacity (Icu) | 15 kA at 400 V AC |
| Rated service short-circuit breaking capacity (Ics) | 11.3 kA at 400 V AC |
| Rated impulse withstand voltage | 4 kV |
| Current limiting class | 3 |
| Protection rating | IP20 |
| Mounting type | DIN rail mounting |
| Dimensions (H × W × D) | approx. 88 × 70 × 69 mm |
| Weight | approx. 0.56 kg |
| EAN | 4016779594332 |
The ABB S203P-Z32NA protects sensitive three-phase electrical circuits against overloads and short circuits where rapid magnetic tripping is required.
The S203P-Z32NA has a rated current of 32 A.
A Z-curve MCB trips rapidly at relatively low magnetic fault currents, making it ideal for protecting sensitive electronic equipment, PLCs and semiconductor devices.
The breaker has a 3+NP configuration, providing protection for three phases together with a neutral pole arrangement.
The S203P-Z32NA is designed for DIN rail mounting inside electrical distribution boards, industrial switchgear and automation control panels.
ABB System pro M compact miniature circuit breakers are trusted by electricians, machine builders and industrial engineers for dependable circuit protection, excellent fault interruption capability and long-term reliability.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
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...