Eaton QC3020H - 20 A, 240 V, 3-Pole Circuit Breaker | AmpState

Protect critical circuits with precision and reliability using the Eaton QC3020H. This 20A, 240V, 3-pole molded case circuit breaker is engineered to deliver dependable branch circuit overcurrent and short-circuit protection in panelboards and load centers, helping you prevent downtime and electrical damage.

Why the QC3020H stands out

• Compact molded case design preserves valuable panel space, making it easier to fit multiple breakers in tight enclosures without compromising accessibility or wiring integrity.
• Thermal-magnetic trip unit provides stable, repeatable protection by combining heat sensing and magnetic trip to respond quickly to short circuits, reducing nuisance trips and safeguarding equipment.
• OEM compatibility engineered to align with matching Eaton OEM load centers and panelboards for a seamless fit, reliable mounting, and consistent performance over time.
• Versatile 3-pole configuration ideal for 240V and three-phase applications, ensuring balanced protection across all conductors in the circuit.
• Broad application range suitable for residential, commercial, and light industrial environments, from home HVAC circuits to service desks in offices and light manufacturing loads.

Practical use cases

In a residential setting, the QC3020H can protect 240V appliances or multi-wire branch circuits where three hot conductors must be simultaneously protected. In commercial spaces, it supports panelboard layouts that service lighting, HVAC, and receptacle circuits across 3-phase or combined loads, all while maintaining panel density and ease of maintenance. For light industrial applications, it offers dependable protection for small motors and equipment that run on 240V, helping prevent costly motor damage and electrical faults.

Key features at a glance

• Amperage rating: 20A
• Voltage rating: 240V
• Poles: 3
• Type: Thermal-magnetic molded case circuit breaker
• Application: Branch circuit overcurrent and short-circuit protection
• Manufacturer: Eaton
• Part number: QC3020H

Installation and compatibility considerations

Ensure the breaker is compatible with your panelboard or load center, using the same OEM family for optimal fit and performance. Verify that the enclosure accommodates a 3-pole breaker and that wiring corresponds to 240V circuits. When replacing an existing unit, confirm the QC3020H’s trip characteristics align with the protection requirements of the connected loads, and follow standard electrical safety practices during installation.

Technical snapshot

Manufacturer: Eaton • Part number: QC3020H • Type: Thermal-magnetic molded case circuit breaker • Amperage: 20A • Voltage: 240V • Poles: 3 • Application: Branch circuit overcurrent and short-circuit protection

For trusted, OEM-aligned protection in panelboards and load centers, the Eaton QC3020H delivers precise trip performance and space-efficient design that electricians rely on for consistent electrical safety and long-term reliability.