Bulletin 1489 MCB

The Allen-Bradley Bulletin 1489 is a family of UL 489-listed industrial miniature circuit breakers (MCBs) designed for branch-circuit and equipment protection in industrial control panels. Catalog numbers follow a structured format: the 1489 prefix identifies the bulletin, the next character indicates family — A for standard AC breakers or D for DC breakers — followed by a trip-curve letter (C for inductive loads at 5–10× rated current, or D for highly inductive loads at 10–20× rated current, available on 1489-A only), a pole-count digit (1, 2, or 3 poles), and finally the marked current rating at 40 °C, ranging from 0.5 A up to 40 A across twenty standard steps. Beyond the breakers themselves, this family includes a broad range of accessories such as UL-listed bus bars in 1-, 2-, and 3-pole configurations (e.g., 1489-AMCL106, 1489-AMCL212, 1489-AMCL318), shunt trip modules (1489-AMST1, 1489-AMST2), and terminal power feeds. Full ratings, wiring, and accessory compatibility details are available in the Bulletin 1489 MCB Technical Data (1489-TD001).