EATON 138389 – NZM3-4-XAD630 – Busbar adapter, 4p, for NZM3, 630A, UL508 Busbar adapter, 4p, for NZM3, 630A, UL508. NZM3(-4), PN3(-4), N3(-4). Busbar adapters for NZM. Busbar distance. Busbar thickness - min. Busbar thickness - max. Busbar adapter width. Eaton xEffect SASY 60i MCCB adapter. byJuly 3, 2026