Overview
Manuals
Operating principle
Features:
- YO E1.2..E6.2-XT7-XT7M 220-240 VAC/DC
- Loose accessory or configurable factory fitment
- Low Voltage Products and Systems
Its core function is to receive remote electrical signals from automated control systems, relay protection devices, or emergency stop buttons, and activate these signals with a rated voltage of 220-240V AC/DC, forcing the circuit breaker to trip (disconnect the circuit), thereby quickly disconnecting the main circuit and protecting downstream loads in the event of an electrical fault or emergency.
The corresponding 1SDA073687R1 is a parallel trip unit. This component is specifically designed for circuit breakers equipped with energy storage spring mechanisms (such as the XT7M or Emax 2 series).
The 1SDA073674R1/1SDA073687R1 ABB Low Voltage Power Breaker may still be available for purchase and support from Moore Automated Company beyond End-Of-Life (EOL) by the manufacturer (OEM).
ABB 1SDA073674R1/1SDA073687R1 Low Voltage Power Breaker manual(Datasheets), Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
When the control circuit applies an AC or DC voltage of 220-240V to the parallel trip unit (1SDA073674R1) or the closing coil (1SDA073687R1), the internal high-density coil is instantaneously energized, generating a strong electromagnetic field that attracts the iron core (armature) to overcome the spring resistance, thereby producing axial mechanical displacement. For the parallel trip unit, the moving iron core directly impacts the circuit breaker's free tripping mechanism, releasing the mechanical lock and using the main spring to quickly separate the contacts.
