Allen-Bradley 1489-M C20A 1-Pole Circuit Breaker, 277V 20Amp

The Allen‑Bradley 1489‑M C20A is a compact miniature circuit breaker designed for branch circuit protection in industrial and commercial electrical systems, providing reliable thermal‑magnetic overcurrent protection for control panels and power distribution applications. Technical specifications Manufacturer: Allen‑Bradley (Rockwell Automation) Part number: 1489‑M Trip curve: C curve Rated current: 20 A Number of poles: 1‑pole Rated operating voltage: 277 VAC Rated insulation voltage (Ui): 277 VAC Rated impulse withstand voltage (Uimp): 4 kV Frequency: 50/60 Hz Breaking capacity: 10 kA at 277 VAC Tripping characteristic: Thermal‑magnetic Curve type description: C‑curve (5–10 × In instantaneous trip) Mounting type: DIN rail mount (35 mm) Terminal type: Screw clamp terminals Conductor size range: 1–25 mm² solid / stranded Housing material: Flame‑retardant thermoplastic Housing color: White with blue operating handle Mechanical life: Approx. 20,000 operations Electrical life: Approx. 10,000 operations Operating temperature range: -25 °C to +55 °C Protection degree: IP20 (installed condition) Standard compliance: UL 489, IEC / EN 60947‑2 Certifications: UL Listed, CSA Certified, CE marked Application environment: Industrial control panels, branch circuit protection Typical applications: Control circuits, lighting circuits, auxiliary power distribution Country of manufacture: United States Please review pictures carefully and let us know if you have any questions!