Why Choose the ABB 2CDS381103R0318 S301P-Z3NA Miniature Circuit Breaker?
The ABB 2CDS381103R0318, also known as the S301P-Z3NA, is a premium miniature circuit breaker (MCB) designed to provide highly sensitive protection against overloads and short circuits in industrial and commercial electrical installations. As part of the proven ABB System pro M compact S300P series, it combines exceptional fault-breaking performance with compact dimensions and full compliance with international IEC, EN and UL standards.
Featuring a 3 A rated current, a Type Z tripping characteristic and a high 25 kA short-circuit breaking capacity, the S301P-Z3NA is specifically engineered to protect sensitive electronic equipment, PLCs, instrumentation, semiconductor devices and low-current control circuits. Its ultra-fast magnetic trip characteristic helps minimise fault energy, reducing the risk of damage to delicate electrical components.
The 1P+N configuration simultaneously switches both the phase and neutral conductors, while its DIN rail mounting, fail-safe bi-directional screw terminals and integrated trip indication make installation and maintenance simple within industrial control panels and electrical distribution systems.
Key Advantages
- Premium miniature circuit breaker for sensitive electronic equipment.
- 3 A rated current for low-current circuit protection.
- Type Z tripping characteristic for extremely rapid fault clearance.
- High 25 kA short-circuit breaking capacity.
- 1P+N configuration switches phase and neutral together.
- Ideal for PLCs, instrumentation and semiconductor equipment.
- Compact DIN rail mounted construction.
- Compatible with ABB System pro M compact accessories.
Key Features
- ABB System pro M compact S300P series.
- S301P-Z3NA miniature circuit breaker.
- 3 A rated current.
- Type Z tripping curve.
- 1P+N pole configuration.
- 240 V AC rated operational voltage.
- Suitable for selected 72 V DC applications.
- 25 kA rated short-circuit breaking capacity.
- Thermal-magnetic release mechanism.
- DIN rail mounting with fail-safe screw terminals.
Designed for Sensitive Electronic Circuits
The ABB S301P-Z3NA automatically disconnects electrical circuits whenever overload or short-circuit conditions occur, helping protect valuable electronic equipment against costly damage. Its Type Z magnetic release operates significantly faster than conventional circuit breakers, making it particularly suitable for semiconductor devices, PLCs, instrumentation and precision 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 for demanding industrial environments.
Typical Applications
- PLC control systems.
- Industrial automation equipment.
- Electronic control panels.
- Instrumentation circuits.
- Semiconductor equipment.
- Laboratory instrumentation.
- OEM machinery.
- Critical low-current electrical installations.
