1409-FOBD

The 1409-FOBD arcing ground fault relay module is the main component of a ground fault detection system that is constructed from relay and sensor modules. The module is designed by Allen-Bradley/Rockwell Automation and it is part of the Bulletin 1409 product line. The 1409 product line offers multiple module variants which operate as supplemental motor protection devices under strict industrial working conditions. The 1409 ground fault relay modules offer an adjustable trip from 1 to 6 Amps for providing maximum sensitivity without experiencing nuisance tripping. Also, these relay modules offer great application flexibility thanks to the output Form C contact with a single-pole double-throw setup.

The 1409-FOBD arcing ground fault relay module complies with standards such as the CSA C22.2 (No. 144)/UL 1053 standards and it is CSA certified and UL listed. These certifications are often required for the components of many industrial systems. The 1409-FOBD relay module features a high-current limit circuit that prevents the controller from opening in certain conditions and it serves as a primary protection device for industrial equipment. The module is marked with a Class II designation and it is used with motor starters or contactors. The main purpose of the ground fault relay module is to interrupt low-level ground faults. The module has a 460 Volts AC maximum voltage and a supply voltage of 120 Volts AC (60 Hertz). The power rating of the unit is 200 Horsepower and its full load current is 240 Amps. In addition to that, the 1409-FOBD arcing ground fault relay module has a high current limit of 1080 to 1368 Amps. The relay is intended for a size 5 NEMA starter and it has a nominal response time of 50 milliseconds.