ABB 1SCA151492R1001 OXB1000E3X3QT 1000A 3P LCD Controller Top Feed Automatic Transfer Switch

The ABB 1SCA151492R1001 (OXB1000E3X3QT) is a 1000 A, 3-pole TruONE automatic transfer switch built for 200-480 V AC distribution boards. An open-style, panel-mount unit, it pairs the switching mechanism with a Level 3 LCD controller in a single enclosure and carries supply conductors on top with load conductors on the bottom. Delayed I-O-II transition and a 65 kA / 0.1 s short-time withstand rating complete the package.

Technical Specifications

Certifications & Standards

• IEC 60947-6-1

Selection Notes

Pick the Level 3 LCD controller over the Level 2 DIP-switch version of this 1000 A / 3P frame when the installation needs on-panel readout of source voltage and transfer status without the cost of the Level 4 touchscreen. The top-feed (QT) terminal layout suits switchboards where supply cable drops in from an overhead riser; choose the QB sibling instead when supply enters from below. Because only AC-31B is rated here, size this unit for distribution-type loads rather than direct motor switching - the AC-32B/AC-33B-rated siblings cover combined and motor duty.