Why Choose the ABB 2CDS381103R0518 S301P-Z25NA Miniature Circuit Breaker?
The ABB 2CDS381103R0518, designated S301P-Z25NA, is a high-performance miniature circuit breaker (MCB) from the ABB System pro M Compact S300P series. Designed for specialist industrial and commercial applications, it provides dependable protection against overloads and short circuits whilst offering an extremely sensitive Type Z tripping characteristic for circuits supplying delicate electronic equipment and semiconductor devices.
Manufactured to recognised IEC and UL standards, the ABB S301P-Z25NA combines a compact DIN rail-mounted design with a high short-circuit breaking capacity, fail-safe terminals and clear switching indication. Its robust construction makes installation and long-term maintenance straightforward in industrial control panels and distribution systems.
Featuring a 25 A rated current, a Type Z tripping characteristic, a 1P+N configuration and a 25 kA breaking capacity, the ABB 2CDS381103R0518 is ideally suited to protecting highly sensitive electronic circuits where rapid fault disconnection is essential.
Key Advantages
- Reliable overload and short-circuit protection for sensitive electrical circuits.
- 25 A rated current for industrial and commercial applications.
- Type Z tripping characteristic provides extremely fast magnetic tripping for electronic equipment.
- 1P+N configuration protects the phase conductor whilst simultaneously switching the neutral.
- 25 kA breaking capacity for installations with high prospective fault currents.
- Compact DIN rail design saves valuable enclosure space.
- Fail-safe screw terminals simplify installation and maintenance.
- Compatible with ABB System pro M Compact accessories.
Key Features
- ABB System pro M Compact S300P series.
- Extended product type: S301P-Z25NA.
- Rated current: 25 A.
- Type Z tripping characteristic.
- 1 protected pole plus switched neutral (1P+N).
- 240 V AC operating voltage.
- 72 V DC operating voltage.
- 25 kA ultimate short-circuit breaking capacity.
- DIN rail mounting.
- Mechanical switching and trip indication.
Type Z Protection for Sensitive Electronic Equipment
Type Z miniature circuit breakers provide one of the fastest magnetic tripping characteristics available, making them particularly suitable for protecting semiconductor devices, PLCs, measurement equipment, electronic power supplies and other sensitive electrical loads. Their rapid response helps minimise damage caused by fault currents whilst maintaining dependable overload protection.
The ABB S301P-Z25NA combines this enhanced sensitivity with ABB's proven S300P platform, delivering high interruption performance, long service life and reliable protection for specialist industrial control applications.
Typical Applications
- PLC and automation systems.
- Sensitive electronic equipment.
- Industrial control panels.
- Measurement and instrumentation circuits.
- Semiconductor protection.
- Power supplies.
- OEM machinery.
- Commercial electrical installations.
