Circuit breaker S 303 3P B 32A 6000A TX3 403405

Three-pole circuit breaker S 303 TX³ is a reliable protection for electrical installations against the effects of overloads and short circuits. This model, with a rated current of 32A and B characteristic, is perfect for both home and commercial installations. The breaker's design is intended for easy mounting and convenient wiring, thanks to the bottom latch and terminal shields.

Functionality and Application

The S 303 TX³ breaker is part of the TX³ series, which is characterized by high quality workmanship and compatibility with a wide range of auxiliary accessories - auxiliary contacts, undervoltage releases or remote drives. The breaking capacity of 6kA at 400V (and 10kA at 230V) ensures effective circuit protection in the event of a failure. The B characteristic means that the breaker reacts quickly to a short circuit, but tolerates short-term current surges, which is especially important when connecting devices with electric motors or other loads with high inrush current. Mounting is done on a standard TH35 rail.

Construction Features and Parameters

The breaker is made of high-quality materials, which guarantees its durability and reliability. It has a protection degree of IP20, which means protection against accidental contact and penetration of solid objects larger than 12.5 mm. The rated voltage is 400V AC, and the insulation voltage is 500V. The width of the breaker is 3 modules (58mm), which allows for efficient use of space in the switchgear cabinet. The rated impulse withstand voltage Uimp is 4kV, which ensures resistance to overvoltages. The device operates in the frequency range from 50 to 60 Hz. The breaker is designed to operate in an ambient temperature from -5°C to +40°C.