PowerMark Gold convertible riser panels arrive as main lug, but have the capability to have a main breaker installed. All ABB load centers are rated up to 60 degree/75 degree centrigrade and is suitable for use with service entrance equipment when installed in accordance with electrical code. The TLM2012CCURP features space for 20, 1" breakers, a 125 A bus ampere rating, a copper bus, and a combination/flush enclosure. Tap kits are required and can be ordered separately.