Eaton QC1020 - 20 A, 120 V, 1-Pole Circuit Breaker | AmpState

Meet the Eaton QC1020 — a compact, dependable 1-pole molded case circuit breaker designed to guard a single branch circuit in panelboards and load centers. With a 20A rating at 120V, it delivers precise overcurrent and short-circuit protection for residential, commercial, and light industrial installations.

Why this matters in real-world use: the built-in thermal-magnetic trip unit combines two protective mechanisms in one smart package. The thermal element handles sustained overloads with stable, repeatable behavior, while the magnetic element snaps into action during a short circuit, helping protect wiring and connected equipment. The result is fewer nuisance trips and consistently reliable protection across varying loads and temperatures.

• Space-efficient design: A compact molded case maximizes panel space, making it ideal for crowded load centers where every inch counts.
• OEM-compatible: Engineered to fit and operate with matching Eaton OEM load centers and panelboards, ensuring proper fit, alignment, and trip characteristics.
• Versatile application: Suitable for a wide range of environments — from home electrical panels to light commercial and small industrial systems — wherever dependable single-pole protection is required.
• Consistent protection: The thermal-magnetic trip unit delivers repeatable performance, maintaining safety and predictability even as ambient conditions change.

Technical highlights

• Manufacturer: Eaton
• Part Number: QC1020
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 20A
• Voltage Rating: 120V
• Number of Poles: 1
• Application: Branch circuit overcurrent and short-circuit protection

Ideal for replacing aging or failed breakers in compatible Eaton panels, the QC1020 provides a reliable upgrade path without sacrificing circuit safety. For installers and DIY enthusiasts matching Eaton load centers, this breaker ensures proper trip curves and seamless operation, supporting quick, confident panel service and expansion.

Practical tips for use: verify that the panelboard is compatible with Eaton QC1020 breakers, confirm the circuit’s amperage needs align with the 20A rating, and have a licensed electrician perform installation to ensure correct torque, labeling, and safety compliance. With proper use, this breaker contributes to a safer, more resilient electrical system.