Allen-Bradley 1492-SPM3D100 Supplementary Protector

Allen-Bradley 1492-SPM3D100 is a three-pole supplementary protector (MCB) from Rockwell Automation’s 1492-SPM family, rated 10 A with a D-trip curve and configured with no neutral. This current-limiting device provides supplemental overcurrent protection for 3-phase circuits in electrical assemblies, interrupting faults while allowing normal operation. The unit measures approximately 3.9016 in long, 3.4606 in wide, and 2.2795 in high, and it features dual terminals for wiring and busbar flexibility, aligning with typical 1492-SPM mounting and wiring options. The product is cataloged as 1492-SPM3D100, described in official literature as a 3P, 10A, Trip Curve D supplementary protector with no neutral, and it carries the UPC 885630616131. Manufactured by Allen-Bradley (Rockwell Automation), this model is positioned within the Bulletin 1492-SPM supplementary protectors lineup for general-use protection in electrical systems.