The SmartCella WE00C2HN00 is a cold-room and freezer controller with four relay outputs (compressor 16 A, defrost 16 A, fan 8 A, light 8 A), NTC inputs on B1 and B2, and NTC or digital inputs on B3, B4, and B5. Supply voltage is 230 V. Applications include walk-in cold rooms, freezer rooms, and refrigeration cabinets requiring compressor, electric-defrost, evaporator-fan, and cabinet-light control.