The Schneider Electric TeSys B CV1BF1F0ZM522 is a 1-pole contactor rated for 80 A in AC-3 duty at 690 V AC, with a 220 V AC 50 Hz control coil. It carries 1 NO main pole and 2 NO + 2 NC auxiliary contacts, making it a compact switching block for motor or resistive loads where a single-pole break is sufficient.
The 80 A AC-3 rating is the motor-switching current — it governs the largest induction motor this contactor can handle across starting and running. The 220 V AC 50 Hz coil is a standard panel voltage in many regions; verify your control transformer matches the frequency, as 60 Hz operation may shift pull-in and hold characteristics. AC-1 rating (resistive loads like heating and lighting) is also listed, so the same unit can switch resistive circuits up to its thermal current without derating for inrush. The 1 NO main pole means it breaks only one line — suitable for single-phase motors, resistive heaters, or as a switched neutral in three-phase schemes where the other poles are handled separately.
This contactor mounts on a DIN rail in the standard TeSys B footprint. The 2 NO + 2 NC auxiliary contacts are built in, so no separate aux block is needed for basic feedback or interlocking. The AC coil draws its control voltage from the panel's 220 V AC bus — no DC supply required.