B8LCR is a compact liquid‑level control relay from Broyce Control that switches a pump based on one or two conductive liquid probes. The 8‑pin B8LCR (and the 11‑pin B11LCR) supports 1‑ or 2‑probe operation, uses low‑voltage AC across the probes to minimize electrolytic effects, and provides selectable pump‑up or pump‑down modes with adjustable sensitivity. Available in 110 VAC and 230 VAC variants and designed for DIN rail mounting, this unit measures about 80 mm high, 40 mm wide, and 92 mm deep. For metal tanks, connect terminal 1 to the tank as shown in the wiring diagram.
