Re: [RE-wrenches] 3.7kW grid tie

2010-10-31 Thread Peter Parrish
: Sunday, October 31, 2010 11:35 AM To: 'RE-wrenches' Subject: Re: [RE-wrenches] 3.7kW grid tie AC Point of Connection could be to a backfed 20A DP breaker in the existing GE TM3210CCU load center (100A MB with 100A busbar) if the SMA SB3800 inverter was still available. But a SB4000 requ

Re: [RE-wrenches] 3.7kW grid tie

2010-10-31 Thread Kirpal Khalsa
e-wrenches.org] *On Behalf Of *Dave Palumbo > *Sent:* Sunday, October 31, 2010 2:35 PM > *To:* 'RE-wrenches' > *Subject:* Re: [RE-wrenches] 3.7kW grid tie > > > > AC Point of Connection could be to a backfed 20A DP breaker in the existing > GE TM3210CCU load center (100

Re: [RE-wrenches] 3.7kW grid tie

2010-10-31 Thread Glenn Burt
27;RE-wrenches' Subject: Re: [RE-wrenches] 3.7kW grid tie AC Point of Connection could be to a backfed 20A DP breaker in the existing GE TM3210CCU load center (100A MB with 100A busbar) if the SMA SB3800 inverter was still available. But a SB4000 requires a 25A breaker which violates the 120% rul

Re: [RE-wrenches] 3.7kW grid tie

2010-10-31 Thread William Miller
Dave: All options satisfy the requirement. Option 2 requires some research to see if a) a smaller amperage main is available or b) your AHJ will allow a plug on to be used as a main. Some interpretations indicate a hold-down is the most that could be required for sub-option b). William Mil

Re: [RE-wrenches] 3.7kW grid tie

2010-10-31 Thread Dave Palumbo
AC Point of Connection could be to a backfed 20A DP breaker in the existing GE TM3210CCU load center (100A MB with 100A busbar) if the SMA SB3800 inverter was still available. But a SB4000 requires a 25A breaker which violates the 120% rule with the existing panel. Comments on the options below.