Eaton FAZ-Z40/3 - 40 A, 480 V, 3-Pole Circuit Breaker | AmpState

Meet the Eaton FAZ-Z40/3 — a 40A, 480V, 3-pole molded case circuit breaker engineered to deliver reliable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Built for demanding environments, this unit combines compact design with precise protection, helping you maximize panel space without compromising safety.

Why this breaker stands out in real-world setups:

• Space-conscious molded case design: The compact footprint frees up valuable panel real estate, making it easier to fit additional circuits in crowded electrical enclosures.
• Thermal-magnetic trip unit: Delivers stable, repeatable protection by responding to both overcurrent and short-circuit conditions, reducing nuisance trips and improving system uptime.
• 3-pole configuration for 3-phase systems: Ideal for commercial and light industrial applications where 3-phase distribution and motors are common, simplifying wiring and protection coordination.
• OEM-compatible for effortless replacement: Designed to integrate with matching Eaton OEM loadcenters and panelboards, ensuring a seamless fit and dependable performance.
• Versatile application: Suitable for residential-scale commercial environments and light industrial facilities needing robust 480V protection.

Technical snapshot

• Manufacturer: Eaton
• Part Number: FAZ-Z40/3
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 40A
• Voltage Rating: 480V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

Practical use cases

In a commercial panelboard feeding a three-phase motor or a dedicated 480V circuit, the FAZ-Z40/3 provides dependable protection with precise trip characteristics. It’s a solid choice for feeders and branch circuits where consistent protection is essential and space within the panel is at a premium.

Best practices and tips

• Pair this breaker with Eaton OEM loadcenters or panelboards to ensure optimal fit and predictable trip performance.
• Consider the startup load and motor inrush when configuring protection; the thermal-magnetic design balances fast fault clearance with discrimination for non-fault events.
• Ensure secure installation by following proper torque specs on mounting hardware and verifying electrical connections after commissioning.