Why Choose the ABB S303P-Z10 Miniature Circuit Breaker?
The ABB S303P-Z10 (2CDS383001R0428) is a high-performance three-pole miniature circuit breaker (MCB) designed to provide reliable protection against overloads and short circuits in demanding industrial electrical installations. As part of the established ABB S300P series, it combines fast fault response, robust construction and a high breaking capacity for dependable circuit protection.
Manufactured in accordance with international IEC and UL standards, the S303P-Z10 is suitable for integration into industrial control panels, switchgear assemblies and electrical distribution systems. Its compact modular construction supports efficient use of panel space, while fail-safe terminals help reduce the risk of incorrect conductor installation.
With a rated current of 10 A, a Type Z tripping characteristic and a rated short-circuit breaking capacity of 25 kA, this miniature circuit breaker is particularly suitable for protecting sensitive electronic equipment, instrumentation and control circuits that require rapid disconnection at relatively low fault currents.
Key Advantages
- Dependable overload and short-circuit protection for industrial circuits.
- 10 A rated current for sensitive three-phase electrical loads.
- Type Z tripping characteristic provides rapid fault response.
- 25 kA breaking capacity for demanding industrial installations.
- Three protected poles provide coordinated protection across three-phase circuits.
- Compact DIN rail format simplifies installation in control and distribution panels.
Key Features
- ABB S300P miniature circuit breaker series.
- Three-pole configuration with three protected poles.
- 10 A rated current.
- Type Z tripping characteristic.
- Rated operating voltage of up to 415 V AC.
- Rated operating voltage of up to 125 V DC.
- 25 kA rated short-circuit breaking capacity.
- Fail-safe terminals help prevent incorrect conductor insertion.
- Supply connection possible from the top or bottom.
- Compatible with ABB System pro M Compact accessories.
Reliable Protection for Sensitive Electrical Circuits
The ABB S303P-Z10 automatically disconnects a circuit when an overload or short circuit causes excessive current. This helps protect cables, electronic devices and connected equipment while reducing the risk of electrical damage, system downtime and operational disruption.
Its Type Z characteristic trips more rapidly than general-purpose MCB curves when relatively low fault currents occur. This makes the S303P-Z10 particularly suitable for protecting sensitive semiconductor devices, PLC systems, instrumentation and electronic control equipment.
Typical Applications
- Industrial automation and PLC control panels.
- Instrumentation and measurement circuits.
- Sensitive electronic equipment.
- Semiconductor and control device protection.
- Machine building and OEM systems.
- Industrial switchgear and power distribution panels.
