ABB 1SCA153625R1001 OXB1600E3X2QB 3P 1600A 65kA Automatic Transfer Switch

The ABB 1SCA153625R1001 is a TruONE OXB1600E3X2QB automatic transfer switch rated 1600 A across 3 poles, built to switch a load between two independent power sources without manual intervention. It carries a 65 kA short-time withstand rating for 0.1 s and a Level 2 DIP-switch controller, with supply cables entering at the bottom and load conductors exiting at the top.

Technical Specifications

Certifications & Standards

• IEC 60947-6-1

Selection Notes

At 1600 A this is the largest frame in the TruONE OXB range covered here, so it suits a main incomer transfer application rather than a distribution sub-panel. The 3-pole (X) configuration leaves the neutral solid between sources, which fits installations with a single bonded neutral; choose the 4-pole (S) version instead where the neutral must be switched. The Level 2 DIP controller covers basic dual-source transfer logic without a display - step up to the Level 3 LCD or Level 4 Touch variants in this frame if on-site event logging or full parameter access is needed. The QB (bottom-supply, top-load) terminal arrangement suits panels where source cabling runs from below; the QT variant reverses this for top-fed installations.