ABB S302P-Z4 two-pole 4A Z curve miniature circuit breaker with 25 kA breaking capacity for sensitive industrial and electronic circuit protection.
£134.18
The ABB S302P-Z4 (SKU: 2CDS382001R0338) is a premium 2-pole miniature circuit breaker (MCB) engineered to provide precise overload and short-circuit protection for sensitive industrial and electronic circuits. Part of the proven ABB System pro M Compact S300P series, it is manufactured to international IEC and UL standards and delivers dependable protection for demanding industrial environments.
The S302P-Z4 combines thermal overload protection with an ultra-fast magnetic trip mechanism to safeguard PLCs, instrumentation, electronic control systems and other sensitive equipment. Its compact modular construction allows quick installation on standard DIN rails within switchboards, distribution boards and industrial control panels.
With a 4 A rated current, Z tripping characteristic, 2-pole configuration and a 25 kA rated short-circuit breaking capacity, the S302P-Z4 is specifically designed for applications requiring rapid fault clearance and dependable protection of low-inrush electronic circuits.
Miniature circuit breakers automatically disconnect electrical circuits whenever overload or short-circuit conditions occur. The ABB S302P-Z4 combines thermal overload protection with an extremely sensitive magnetic trip mechanism, helping protect valuable electronic equipment against damaging fault currents.
Its Z tripping characteristic is specifically intended for circuits with very low inrush currents, making it particularly suitable for PLCs, instrumentation, semiconductor equipment, measuring devices and electronic control systems where rapid fault disconnection is essential.
| Current | 4 A |
|---|---|
| Manufacturer | ABB |
| Series | System pro M Compact S300P |
| Model | S302P-Z4 |
| SKU | 2CDS382001R0338 |
| EAN | 4016779078641 |
| Product type | Miniature Circuit Breaker (MCB) |
| Rated current | 4 A |
| Tripping characteristic | Z Curve |
| Number of poles | 2 |
| Rated operational voltage | 415 V AC |
| Rated DC voltage | 125 V DC |
| Frequency | 50 / 60 Hz |
| Rated breaking capacity (Icn) | 25 kA |
| Ultimate breaking capacity (Icu) | Up to 100 kA (IEC 60947-2) |
| Rated insulation voltage (Ui) | 500 V |
| Impulse withstand voltage (Uimp) | 6 kV |
| Protection rating | IP20 (IP40 when installed in a suitable enclosure) |
| Mounting type | 35 mm DIN rail |
| Dimensions (H × W × D) | 88 × 35 × 69 mm |
| Weight | Approx. 248 g |
| Operating temperature | -40°C to +70°C |
| Applicable standards | IEC/EN 60947-2, UL 1077 and CSA 22.2 No. 235 |
| HS Code | 85362010 |
| Country of Manufacture | Germany |
It protects sensitive industrial electrical and electronic circuits against overloads and short circuits where extremely fast fault response is required.
The ABB S302P-Z4 has a 4 A rated current.
A Z curve breaker provides extremely fast magnetic tripping and is designed for protecting sensitive electronic equipment with very low inrush currents.
The breaker provides a rated short-circuit breaking capacity of 25 kA and an ultimate breaking capacity of up to 100 kA under IEC 60947-2.
The S302P-Z4 installs directly onto a standard 35 mm DIN rail inside electrical control panels, switchboards and distribution boards.
ABB System pro M Compact miniature circuit breakers are trusted worldwide by electrical engineers, machine builders and panel manufacturers for dependable circuit protection, exceptional interruption performance and long-term operational 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...