509-BOB

The 509-BOB part from Allen Bradley is a highly functional non-reversing starter utilized in motor control within the Bulletin 509 series. This device is constructed for efficient operation with a control supply voltage of 440 V at 50 Hz and 480 V at 60 Hz, accommodating a frequency spectrum between 50 Hz and 60 Hz. Its assessment as a direct online starter (DOL) designates it as effective for immediate motor activation in various applications.

Designed to manage a service limit current rating of 32 A, the starter delivers reliable performance in demanding environments. The typical heat generated during operation is around 5.9 W, indicating relatively low thermal impact in typical usage scenarios. Electrical connections are secured through a robust screw connection system, enhancing reliability.

Further integrations into control systems are made possible with the presence of 8 auxiliary contacts. This feature allows for more complex functionality within systems utilizing this starter. The average activation time during the pick-up phase is recorded at approximately 22 milliseconds, while the dropout phase, which describes how quickly the starter can disengage, averages at 14 milliseconds. Such rapid operational responsiveness makes the 509-BOB an efficient choice for applications requiring reliable startup and shutdown sequences.