ABB SCYC55830 3AFE58063282 Tmax XT Series Molded Case Circuit Breaker

The ABB SCYC55830 with order code 3AFE58063282 is a fixed-mounted, high-current motor-protection circuit breaker from ABB Tmax XT series molded case circuit breaker family. This device is specifically engineered to provide reliable protection, control, and isolation for high-power three-phase motors and other heavy electrical loads in industrial and commercial power distribution systems. It integrates the functions of a circuit breaker for short-circuit and overload protection, a motor starter through its thermal-magnetic trip unit, and an isolating switch into a single, compact unit.

Technical Specifications

The SCYC55830 is configured as a 3-pole breaker for three-phase systems. The rated operational current is approximately 800 amperes, representing the maximum continuous current the breaker can carry at an ambient temperature of 40 degrees Celsius. The rated ultimate breaking capacity is high, typically in the range of 50 kA to 100 kA at specified voltage such as 415 V AC, representing the maximum fault current the breaker can safely interrupt. The physical dimensions are approximately 2.2 cm by 12.4 cm by 12.6 cm, with a weight of approximately 0.1 kg for the control board configuration.

Motor Protection Features

As a motor-protection variant, the thermal-magnetic trip unit is precisely calibrated to handle the high inrush currents characteristic of motor starting while providing sensitive protection against overloads and phase failures. The thermal trip element provides adjustable overload protection with inverse time characteristics, while the magnetic trip element provides instantaneous short-circuit protection. This configuration ensures reliable protection for large motors driving pumps, fans, compressors, and conveyors, preventing damage from sustained overloads while allowing normal starting inrush currents.

Tmax XT Series Features

The Tmax XT series represents ABB high-performance molded case circuit breaker platform, offering high breaking capacity in a compact footprint. The SCYC prefix and 55830 designation indicate the specific frame size, interrupting capacity, and continuous current rating within the Tmax XT family. The 3AFE58063282 is the unique manufacturing order code that defines this specific configuration. The fixed-mounted design is intended for permanent installation in switchboards or distribution panels where it serves as the primary protection and switching device for critical motor-driven equipment.

Applications

The ABB SCYC55830 3AFE58063282 is deployed in industrial power distribution applications requiring high-current motor protection. Typical applications include main circuit protection for large industrial motors driving pumps, fans, compressors, and conveyors, feeder protection in industrial switchboards and motor control centers, and branch circuit protection for heavy industrial equipment. The breaker is also used in commercial building main distribution panels, industrial plant power distribution systems, and any application where reliable overcurrent and short-circuit protection for high-current three-phase loads is required.