Square D individual meter sockets have provisions to feed a downstream main lug load center, main breaker load center, or an individually enclosed service disconnect. Units can have a combination of releases, horn, or no bypasses to handle any meter socket situation. Units supplied with hub opening in top end wall require the use of a bolt-on hub or closing plate. With 320 A, 600 V, 1 phase, 4 jaws, ringless socket your product can provide 10 kA RMS short circuit rating. These units are supplied with a bonded neutral to the NEMA 3R enclosure. Meter sockets are UL Listed. This meter has horn bypass allowing for continued service during meter maintenance or replacement.