CAREL 9743DK974330KC97444ALCPCOB000A21CE113 Board

CAREL PCOB000A21 analog input circuit board is a programmable control module in CAREL’s pCO family, designed for air-conditioning and refrigeration systems. It provides 8 analog inputs and 13 relay outputs, powered from 24Vac/Vdc, and uses a dual microprocessor architecture to read sensor signals and drive outputs within CAREL control networks. The 8-input variant features removable-screw connectors for wiring. The board measures 300 mm in length, 120 mm in width, and 30 mm in height, and weighs about 0.38 kg. CAREL lists the PCOB000A21 as obsolete with no current replacement, noting it replaces older models like PCOBAA0A21 and PCOB000A00 and is typically used inside HVAC/R control panels to monitor analog signals and switch relays that control compressors, fans, valves, and alarms in CAREL-based systems.