ABB S301P-Z2NA miniature circuit breaker with 2 A rated current, Type Z tripping characteristic, 1P+N configuration and 25 kA breaking capacity for sensitive electronic circuit protection.
£122.79
The ABB 2CDS381103R0278, also known as the S301P-Z2NA, is a premium miniature circuit breaker (MCB) designed to provide exceptionally sensitive protection against overloads and short circuits in industrial and commercial electrical installations. As part of the renowned ABB System pro M compact S300P series, it delivers outstanding reliability, compact installation and compliance with international IEC and UL standards.
With a 2 A rated current, a Type Z tripping characteristic and a high 25 kA short-circuit breaking capacity, the S301P-Z2NA is specifically engineered for protecting sensitive electronic equipment including PLCs, instrumentation, semiconductor devices, control circuits and other low-current applications. Its extremely fast magnetic trip characteristic minimises fault energy reaching delicate electronic components.
The 1P+N configuration switches both the phase and neutral conductors simultaneously, while the compact DIN rail design, fail-safe bi-directional screw terminals and integrated contact position indicator make installation and maintenance straightforward in industrial control panels and electrical distribution systems.
The ABB S301P-Z2NA automatically disconnects electrical circuits whenever overload or short-circuit conditions occur, helping to protect valuable electronic equipment from damage. Its Type Z magnetic release operates significantly faster than conventional circuit breakers, making it particularly suitable for semiconductor devices, PLCs, instrumentation and other sensitive control systems.
Widely specified by OEM machine builders, industrial panel manufacturers and automation engineers, the ABB S300P range delivers dependable circuit protection, excellent durability and long operational life even in demanding industrial environments.
| Current | 2 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | ABB |
| Series | System pro M compact S300P |
| Model | S301P-Z2NA |
| Product ID | 2CDS381103R0278 |
| EAN | 4016779079518 |
| Product type | Miniature circuit breaker (MCB) |
| Rated current | 2 A |
| Tripping characteristic | Type Z |
| Number of poles | 1P+N |
| Neutral position | Right |
| Rated operational voltage | 240 V AC |
| Rated DC voltage | 72 V DC |
| Frequency | 50 / 60 Hz |
| Rated ultimate short-circuit breaking capacity | 25 kA |
| Rated insulation voltage (Ui) | 500 V |
| Rated impulse withstand voltage (Uimp) | 6 kV |
| Protection rating | IP20 (IP40 when installed within a suitable enclosure) |
| Mounting type | DIN rail mounting |
| Terminal capacity | 0.75–35 mm² solid, 0.75–25 mm² stranded |
| Operating temperature | -40°C to +70°C |
| Dimensions (H × W × D) | Approximately 88 × 35 × 69 mm |
| Weight | Approximately 0.248 kg |
| Country of origin | Germany |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
The ABB S301P-Z2NA protects highly sensitive electronic circuits against overloads and short circuits in industrial and commercial installations.
The ABB S301P-Z2NA has a rated current of 2 A.
Type Z circuit breakers provide an extremely fast magnetic trip response, making them ideal for protecting PLCs, semiconductor devices, instrumentation and other sensitive electronic equipment.
The ABB S301P-Z2NA provides a high 25 kA short-circuit breaking capacity for demanding industrial applications.
The circuit breaker mounts directly onto a standard 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 overload and short-circuit protection in industrial automation, electronic control systems and critical electrical installations.
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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...