Specifications

Product Type Miniature Circuit Breaker	Brand ABB	Series S300P
Application Industrial Installations

No. of Poles (Total) 3	Rated Impulse Withstand Voltage (Uimp) 6kV	Rated Insulation Voltage (Ui) 500V AC
Power Loss 11.7W	Rated Current (In) 50A	Rated Frequency 50/60Hz
Rated Voltage (Ur) 415V AC	Trip Curve K	Terminal Type Screw Terminals
Electrical Life 10000	Mechanical Life 20000 cycles

Conductor Cross Section Flexible

0.75mm² to 25mm²

Conductor Cross Section Solid Core

0.75mm² to 35mm²

Housing Material

Insulation group I, RAL 7035

Depth 69mm	Height 88mm	Weight 0.372kg
Width 52.5mm	Width in No. of Modular Spacing 3	Pole Width 17.5mm

Rated Surrounding Temperature Without Derating 40°C	Pollution Degree 3	Storage Temperature -50°C to 70°C
Operating Temperature -40°C to 70°C	IP Rating IP20, IP40 in enclosure with cover

Standards and Approvals

CSA 22.2 No. 235, IEC/EN 60947-2, UL 1077

Rated Ultimate Short Circuit Breaking Capacity (Icu), acc. to AS/NZS 60947-2 at 230 VAC

40kA

Rated Ultimate Short- Circuit Breaking Capacity (Icu), acc. to AS/NZS 60947-2 at 400 VAC

25kA

Rated Short Circuit Breaking Capacity (Icn) acc. to AS/NZS 60898 at 400 VAC

15kA

ABB S303PK50 Miniature Circuit Breaker 25 kA 3-P 50A 415VAC K-Curve