The SLP-236 is a 2U high 19" rack mount 220 Volt 30 amp single phase power distribution bar. This model has a NEMA L15-30 for a Main Inlet connector. There is one double 15 Amp breaker and two single 20 Amp breakers located on the front panel. The double 15 Amp breaker distributes power to a duplex 220 Volt 15 Amp twist lock connector that is also connected to a split T-slot duplex U-ground receptacle. Both outlets connected to this double 15 Amp breaker are located on the rear panel. Each of the remaining two 20 Amp single breakers are connected to one of the two phases ( X & Y ) of the main power inlet connector and distribute power to a Tslot duplex U-ground receptacle located on the rear panel. The same two 20 Amp X2 and Y2 breakers also distribute power, one to each half of the split T-slot duplex U-ground convenience receptacle located on the front panel.