HEG431045 | Circuit Breaker | 4A | 3-Pole | 480V

The HEG431045 Circuit Breaker is an industrial‑grade protective device designed for reliability in 480V three‑phase power systems. With a precise 4‑amp rating and a 3‑pole configuration, it delivers balanced, dependable protection for critical equipment during operation, maintenance, retrofit, or replacement projects.

Key specifications that matter

• Amperage: 4 A — targeted protection for lightly loaded circuits while guarding against overloads.
• Poles: 3‑Pole — provides simultaneous protection across all three phases, reducing the risk of phase imbalance.
• Voltage: 480V — suited for standard industrial three‑phase distribution networks.
• Compatibility note: Part number HEG431045 is the best reference for fit and ratings; confirm fit before ordering.

Why this specific breaker stands out

Unlike generic alternatives, this unit is cataloged to meet projects where exact amperage, pole count, and voltage are non‑negotiable. It’s ideal for maintenance campaigns, retrofit installations, and planned replacements in facilities that rely on 480V three‑phase power—from manufacturing lines to logistics hubs.

Use cases

• Maintenance: swap out aging or failed breakers with a part that matches the original specs to minimize downtime.
• Retrofit: upgrade legacy panels to a modern 3‑pole 480V solution for consistent, multi‑phase protection.
• Replacement stock: keep a ready‑to‑serve unit on hand to ensure rapid service continuity.

Installation and compatibility tips

Before ordering, verify fit and ratings using the part number HEG431045 as your primary reference. When installing, ensure the power is de‑energized and follow your facility’s lockout/tagout procedures. Adhere to your panel manufacturer’s mounting instructions and torque specs. If your system operates near the upper end of 480V or experiences frequent surges, consult with your electrical team to confirm that a 4A, 3‑pole unit aligns with your peak load and protection needs.