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The E-T-A X4230-BR157P18SB is a bus bar accessory specifically designed for integration with the E-T-A 4230-T series of thermal-magnetic miniature circuit breakers. This component facilitates efficient power distribution and connection within electrical panels.
Key technical specifications include screw terminals for secure connections, with a maximum tightening torque of 2 Nm and support for cable cross-sections up to 35 mm². The bus bar is designed for DIN rail mounting, ensuring easy and standardized installation in control cabinets. It operates reliably within an ambient temperature range of -35°C to +70°C.
This accessory is built to complement the high rupture capacity and reliable switching behavior of the 4230-T circuit breakers, supporting various voltage and current ratings according to IEC/EN 60947-2, UL 1077, and UL 489 standards. Its durable construction is tested against vibration, shock, corrosion, and humidity to ensure long-term performance in demanding environments.
Typical applications include enhancing the connectivity and distribution capabilities in systems protected by E-T-A 4230-T circuit breakers, such as industrial process control systems, telecommunications equipment, and power supplies.
The rupture capacity (Ics) is 7,500 A AC and 10,000 A DC. The rupture capacity (Icu) is 10,000 A AC/DC.
The overvoltage category is III with an impulse withstand voltage of 4 kV.
The degree of protection is IP20.
The ambient temperature range is -35°C to +70°C.
This bus bar accessory uses DIN rail mounting.
The maximum cable cross-section supported is 35 mm².
The mechanical life is 20,000 cycles, and the electrical life is 6,000 cycles.