Why Choose the ABB S303P-K6 Miniature Circuit Breaker?
The ABB S303P-K6 (2CDS383001R0377) is a high-performance three-pole miniature circuit breaker (MCB) designed to protect industrial electrical installations against overloads and short circuits. As part of the robust ABB S300P series, it delivers reliable circuit protection for machinery, control panels and demanding power distribution applications.
This miniature circuit breaker combines a high breaking capacity with a compact modular design, making it suitable for installations where dependable protection and efficient use of panel space are essential. Its fail-safe terminals support secure conductor installation, while power can be supplied from either the top or bottom for greater wiring flexibility.
With a rated current of 6 A, a Type K tripping characteristic and a rated short-circuit breaking capacity of 25 kA, the S303P-K6 is particularly suitable for circuits containing motors, transformers and other inductive equipment with elevated starting currents.
Key Advantages
- Reliable overload and short-circuit protection for industrial installations.
- 6 A rated current for lower-current three-phase circuits.
- Type K tripping characteristic suitable for equipment with high inrush currents.
- 25 kA rated breaking capacity for demanding electrical systems.
- Three protected poles provide coordinated protection across three-phase circuits.
- Compact DIN rail format simplifies installation inside control and distribution panels.
Key Features
- ABB S300P miniature circuit breaker series.
- Three-pole configuration with three protected poles.
- 6 A rated current.
- Type K tripping curve.
- Rated operating voltage of up to 415 V AC.
- Rated DC operating voltage of up to 125 V DC.
- Red ON and green OFF contact position indication.
- Fail-safe terminals designed to reduce incorrect conductor insertion.
- Supply connection possible from the top or bottom.
- Mechanical and electrical endurance of up to 20,000 operating cycles.
Reliable Protection for Industrial Electrical Systems
The ABB S303P-K6 automatically disconnects a circuit when excessive current is caused by an overload or short circuit. This helps prevent damage to cables, machinery and connected electrical equipment while improving the safety and reliability of industrial installations.
Its Type K characteristic is designed to tolerate higher short-duration starting currents than standard general-purpose circuit breakers. This makes the S303P-K6 well suited to motor circuits, transformers, solenoids and other inductive loads without compromising dependable fault protection.
Typical Applications
- Industrial machinery and automation systems.
- Three-phase motor circuits.
- Transformers and inductive electrical loads.
- Industrial control panels and switchboards.
- Manufacturing and processing equipment.
- OEM machinery and electrical distribution systems.
