The KBS21A pairs three refrigerated doors with a 2100 mm run of 50 mm AISI 304 worktop, finished with an 8.5 cm upstand at the back and a soundproofing lining. Underneath, 564 litres gross (360 litres net) of storage take EN 60 × 40 cm trays at −2…+8 °C. Seven runner positions at 75 mm per section sit on AISI 304 grid racks, and the inner bottom has rounded corners.
Fan-assisted refrigeration, automatic electric defrost and an anti-corrosion evaporator handle cooling, while the pull-out cooling unit gives access to the condenser for cleaning. The thermometer-thermostat sets humidity to 75% or 90% and has a communication port.
Energy class D (3.749 kWh/24 h, EEI 50.5, 1368 kWh a year). R290 0.08 kg, 560 W at −10 °C, 360 W at 230 V 1N~. External size 2100 × 800 × 965 mm, 160 kg net, 50 dBA.