Why Choose the ABB S303P-K1.6 Miniature Circuit Breaker?
The ABB S303P-K1.6 is a premium three-pole miniature circuit breaker (MCB) engineered to provide reliable protection against overloads and short circuits in industrial, commercial and OEM electrical installations. As part of the proven ABB System pro M compact S300P series, it delivers dependable circuit protection, exceptional fault interruption capability and long service life in demanding applications.
Designed in accordance with international IEC, UL and CSA standards, the S303P-K1.6 features a compact DIN rail mounted design that enables fast installation inside switchboards, control panels and distribution boards. Its robust switching mechanism, secure screw terminals and high mechanical endurance make it ideal for continuous industrial operation.
Featuring a 1.6 A rated current, a K curve tripping characteristic and a 25 kA breaking capacity, this miniature circuit breaker is particularly suited to protecting transformers, control circuits, motors and inductive loads where higher inrush currents require a specialised tripping characteristic.
Key Advantages
- Compact three-pole miniature circuit breaker for industrial applications.
- 1.6 A rated current for low-current protection.
- K curve tripping characteristic ideal for inductive loads and motor circuits.
- 25 kA breaking capacity for excellent fault protection.
- Manufactured to IEC, UL and CSA standards.
- Quick installation on standard 35 mm DIN rail.
Key Features
- ABB System pro M compact S300P series.
- 1.6 A rated current.
- Three protected poles.
- K curve tripping characteristic.
- 415 V AC rated operational voltage.
- 25 kA rated short-circuit breaking capacity (Icn).
- IP20 protection rating.
- 35 mm DIN rail mounting.
Optimised Protection for Motors and Inductive Loads
The ABB S303P-K1.6 automatically disconnects electrical circuits when overload or short-circuit conditions occur, protecting wiring and connected equipment from damage. The K curve characteristic is specifically designed for circuits with higher inrush currents, making it particularly suitable for motors, transformers, solenoids and other inductive loads.
As part of ABB's S300P range, the S303P-K1.6 combines high fault interruption capability with reliable long-term performance, making it a preferred choice for panel builders, machine manufacturers and industrial electrical contractors.
Typical Applications
- Industrial motor protection.
- Transformer protection.
- Industrial control panels.
- Machine building and OEM equipment.
- Automation systems.
- Commercial and industrial electrical distribution.
