Specifications include, but are not limited to: 1. Low temperature food storage compartment below 32 degrees F; manually initiated with manual or automatic reset. 2. Isolated frozen food storage compartment below 8 degrees F; automatically initiated defrost with automatic reset for general food storage compartment only. 3. Isolated frozen food storage compartment below 8 degrees F; automatically initiated defrost with automatic reset for both general food storage and frozen storage compartments. The refrigerators shall operate on a 115 volt, 60 Hz, A.C. electrical system. A three-wire cord with a three-prong attachment plug shall provide grounding of the refrigerators and shall extend at least 5 feet but not more than 9 feet beyond the point at which it is attached to the back of the cabinet. When 50 hz. operation is specified, the refrigerator must be wired for 220 volts, 50 Hz. use and will not utilize an internally or externally mounted transformer. A UL approved three-wire electrical cable intended for power supply cord use shall be provided.