Control Wiring A/C Themostat Service Disconnect Hot Water Heater Air Conditioner Distribution Panel #1 Transfer Switch 200 Amp 400 Amp 400 Amp Main c/w Blank Compartment METER SOCKETS 100 AMP SOCKET & BREAKER Combination with or without Breaker JA Series CATALOGUE # TYPE DESCRIPTION HW D WEIGHT Number of Poles, Tenant Circuit Breaker Amperes Rating Range) EZM Main Device with Integral Mounted Main, Remote Mounted Main or without an Upstream Mounted Main (Six Disconnect Rule) EZ Meter-Pak (Six Disconnect Rule Applications)-See Figure 1 10 kA QO (125 A, 2P, 40–125 A) 400–2000 A Main Lugs Terminal Box Main Disconnect: (2) 200 Amp, 2-Pole, 10 kAIC Breaker. Garage is to the point where we call in the electrician. I just wanted to make sure the Meter was adequate so as it would not be the limiting factor for the total 400 amp service since it feeds both of the 200 Amp panels. Siemens 400 Amp Panel 240120 Single Phase Main Lug. Here is an example of 400 amp Meter socket and load center combo. I also have two 200 amp breaker panels for inside, one is 20’ from the disconnects and the other is 50’ from the disconnects. 82345, 600 Volts, 400 400/3 m air cooled chiller #2 305 mca, 400 mfs, 480v, 3 phase digital meter automatic transfer switch with bypass isolation, 2000 amp/4 pole spd 2000/3 main circuit breaker 2000/3 g output c. Main Bus Ampe-rage Meter Positions Per Pak Catalog Number Breaker Provision Max. First time I have seen this - CL200 meter with a 225A main breaker - is this a problem? A 15-amp “rated” meter can be used on a 200 amp service. Number of Poles, Tenant Circuit Breaker Amperes Rating Range) EZM Main Device with Integral Mounted Main, Remote Mounted Main or without an Upstream Mounted Main (Six Disconnect Rule) EZ Meter-Pak (Six Disconnect Rule Applications)-See Figure 1 10 kA QO (125 A, 2P, 40–125 A) 400–2000 A Main Lugs Terminal Box Main Disconnect: (2) 200 Amp, 2-Pole, 10 kAIC Breaker. It only matters if the service is on the building if you were to correct the problem by replacing the single 400 amp panel with 2 200 amp panels because, as Kwire points out, it would violate 225.