TM 10-6640-239-13 2-3 b. Power Panel Assemblies.  Figure 2-2 and 2-3 and Tables 2-2 and 2-3 list the circuit breakers located in Main Power Panel and Power Panel No. 2. Table 2-2.  Main Power Panel Controls and Indicators Index Number Control or Indicator Function 1 A1CB1 Main circuit breaker.  Provides 225A circuit protection for main power input. In the ON position, applies power to all system circuit breakers. 2 A1CB3 Provides 20A circuit protection for Uninterrupted Power Supply and Computer. 3 A1CB5 Provides 20A circuit protection to Viscosity Bath. 4 A1CB7 Provides 20A circuit protection to Distillation Unit. 5 A1CB9 Provides 15A circuit protection for Phase A, rear laboratory overhead lights. 6 A1CB11 Provides 15A circuit protection for Phase B, front laboratory overhead lights. 7 A1CB13 Provides 15A circuit protection for Phase C, blackout lights, three overhead lights (just forward of rear door) and Ramsbottom and Fume hood wall switch. 8 A1CB15 Provides 15A circuit protection for Refrigerating Circulator. 9 A1CB17 Provides 15A circuit protection for Water Heater. 10 A1CB21 Provides 20A circuit protection for Outside Receptacle (GFI). 11 A1CB22 Not Used 12 A1CB20 Provides 15A circuit protection for Fume Hood Utility Receptacle. 13 A1CB18 Provides 30A circuit protection for Ramsbottom. 14 A1CB16 Provides 15A circuit protection for Evaporation Loss Bath/Freeze Point Analyzer. 15 A1CB14 Provides 15A circuit protection for the Sump Pump. 16 A1CB12 Provides 20A circuit protection for Muffle (Burnout) Furnace. 17 A1CB10 Provides 15A circuit protection for Utility No. 5. 18 A1CB8 Provides 15A circuit protection for Utility No. 2 in mechanical room. 19 A1CB6 Provides 15A circuit protection for Refrigerator and Utility No. 3. 20 A1CB4 Provides 15A circuit protection to Oven and Utility No. 4. 21 A1CB2 Provides 100A circuit protection for power input to Power Panel No. 2.