The ABB TMP3SB8R is a modular metering main breaker module designed to handle up to 800 amps. This versatile unit supports single-phase, 3-wire systems at 120/240 volts AC, as well as three-phase, 4-wire setups at 208Y/120 volts AC. Rated for a 100 kA interrupting capacity, it comes with the breaker included and features line and load lugs that accept conductors ranging from 3/0 AWG to 500 MCM, with the option for top or bottom feed connections. Known by part number 783164307061 as well, this gear is a solid pick for reliable breaker integration. Distributed by BSP Automation, it’s a practical solution when you need a robust main breaker metering module that won’t quit on you.