Bulletin 1497 Control Transformers

The Allen-Bradley Bulletin 1497 Control Transformer family provides single-phase control circuit power across four sub-families tailored to different application requirements: 1497 (Global), 1497A (Machine Tool), 1497B (Control Power), and 1497D (General Purpose). VA ratings span 63 VA to 25 kVA depending on sub-family, with the 1497 Global series using letter codes A–M and the 1497A/B/D series using alphanumeric codes A1–A20. The catalog number encodes sub-family prefix, VA rating, primary/secondary voltage configuration (e.g., BA for 240×480 V / 220×440 V dual-frequency primary), fuse block arrangement (0 = no fusing through 3 = two primary plus one secondary fuse block), and factory-installed options such as N for no cover or taps. Popular in-stock models include the 1497-N2PK (80 VA, 240/480 V primary), 1497-N5PK (200 VA, 240/480 V primary), 1497-N11PK (350 VA), and 1497-N19PK (500 VA), all delivering 120 V secondary output. Full voltage code tables, fuse block options, and dimensional data are available in the Bulletin 1497 Control Transformer Technical Data (1497-TD001).