DCF506-0140-51

The ABB DCF506-0140-51 is a dedicated active overvoltage protection unit engineered to safeguard ABB's DCS800-S01 and DCS800-S02 three-phase field supply converters. This essential component is designed to protect the drive from inadmissible high voltages generated by the inductive load of a motor field, ensuring reliable operation and preventing damage to sensitive drive electronics. The DCF506-0140-51 is specifically designed for compatibility with DCS800-S01 and -S02 units ranging from -0020-05 through -0140-05. It functions by actively suppressing voltage spikes, thereby extending the lifespan of your motor control system and minimizing potential downtime. The unit operates with a supply voltage of 24 V DC (+30%, -20%), drawing a maximum of 40 mA when the relay is energized. It features a single relay output with a voltage switching capacity of 12 to 250 V AC/DC and a current switching capacity of up to 1.5 A at 240 V AC (AC-15). For proper switching of inductive loads, the unit incorporates contact wiring with free-wheeling diodes for DC and varistors/VDRs for AC. Diagnostic functions are integrated, indicated by a green LED for device ready, a yellow LED for diagnostics, and a red LED for faults. The DCF506-0140-51 is designed for snap-on mounting on a DIN rail and has dimensions of 22.5 x 77 x 100 mm (excluding communication connector), with a weight of 0.110 kg. It operates within a temperature range of 0 to +60 °C and has a degree of protection of IP20. Approvals include ATEX, CCC, CE, cUL, and EAC. Trust ABB's expertise in low-voltage drives to provide robust and dependable protection for your critical motor control applications, ensuring operational continuity and equipment integrity. SKU: DCF506-0140-51.