Why Choose the ABB 2CDS381001R0318 Miniature Circuit Breaker?
The ABB 2CDS381001R0318, also known as the S301P-Z3, is a high-performance single-pole miniature circuit breaker (MCB) from the ABB System pro M compact S300P series. It provides dependable overload and short-circuit protection for industrial installations containing sensitive electronic equipment and low-current control circuits.
Its Type Z tripping characteristic provides a highly sensitive magnetic response, making the S301P-Z3 particularly suitable for PLCs, semiconductor devices, instrumentation, measuring equipment and electronic control systems. Rapid fault disconnection helps protect delicate components that may be damaged by comparatively low short-circuit currents.
With a 3 A rated current, compact single-pole construction and a rated short-circuit breaking capacity of up to 25 kA, the ABB 2CDS381001R0318 delivers robust industrial protection while occupying only one DIN rail module. Fail-safe terminals and clear operating-status indication support safe installation and efficient maintenance.
Key Advantages
- 3 A rated current for sensitive low-current circuits.
- Type Z tripping characteristic for rapid protection of electronic equipment.
- 25 kA breaking capacity for demanding industrial installations.
- Helps protect PLCs, instrumentation and semiconductor devices.
- Thermal overload and electromagnetic short-circuit protection.
- Compact single-module design saves panel space.
- Compatible with ABB System pro M compact accessories.
Key Features
- ABB System pro M compact S300P series.
- S301P-Z3 model designation.
- 3 A rated current.
- Single-pole (1P) configuration.
- Type Z tripping characteristic.
- 25 kA rated short-circuit breaking capacity.
- Thermal overload and magnetic short-circuit releases.
- Fail-safe bidirectional terminals.
- Contact-position and trip-position indication.
- Standard 35 mm DIN rail mounting.
Ultra-Sensitive Type Z Circuit Protection
The ABB S301P-Z3 combines two complementary protection mechanisms. Its thermal release responds to sustained overload conditions, while its electromagnetic release rapidly disconnects the circuit when a short circuit occurs.
The Type Z characteristic provides magnetic tripping at approximately two to three times the rated current. This sensitive response makes the breaker suitable for delicate electronic circuits where fault currents below the operating threshold of conventional Type B or Type C breakers could still damage connected equipment.
Typical Applications
- PLC and industrial automation systems.
- Electronic control panels.
- Instrumentation and measurement circuits.
- Semiconductor equipment.
- Laboratory and testing equipment.
- Sensitive power supplies.
- Low-current control and signalling circuits.
- OEM machinery containing sensitive electronics.
