The EHDB960C-1L is a 3-pole DC drive dynamic braking contactor rated for 960 A continuous, with a 120V AC coil and a contact configuration of 2 NO and 1 NC plus an additional 1 NO and 1 NC auxiliary contacts. This is a heavy-current contactor sized for DC drive braking circuits — think large motor braking resistors on 400–600 V DC bus systems, where you need to dump regenerative energy fast without welding the main contacts.
Key rating so-what
960 A is the continuous current rating — this contactor is built for sustained DC braking current, not intermittent pick-up duty. The 120V AC coil holds in at line voltage; verify your control transformer can deliver the inrush without droop on a long cable run. The auxiliary contact stack (2 NO + 1 NC, plus a separate 1 NO + 1 NC) gives you enough isolated feedback to signal the drive controller and a PLC that the braking contactor has closed — no need for an add-on block.