SQUARE D QOB220EPD Miniature Circuit Breaker QOB220EPD

Description:

The Square D QOB220EPD Miniature Circuit Breaker is a single‑pole over‑current protective device used to safeguard branch electrical circuits from overloads and short circuits. Installed in residential, commercial, and light industrial panelboards where reliable circuit protection and quick fault clearing are required. Electricians and maintenance teams use this breaker for replacement, retrofit, and system upgrades to maintain safe, code‑compliant circuit protection.

Applications:

The Square D QOB220EPD breaker is used in electrical distribution panels to protect lighting circuits, receptacles, HVAC units, and small equipment feeds. It is deployed in homes, offices, retail spaces, and light commercial facilities to interrupt fault currents and prevent electrical damage. With its standard form factor and easy panel installation, it supports dependable protection in branch circuit distribution systems.

Technical Specifications:

• Manufacturer: Schneider Electric / Square D
• Model / Part Number: QOB220EPD
• Product Type: Miniature Circuit Breaker (MCB)
• Number of Poles: Single‑pole
• Rated Current: 20 A
• Voltage Rating: 120/240 V AC
• Trip Type: Thermal‑magnetic
• Interrupting Capacity: ~10 kA @ 120/240 V AC (typical)
• Mounting: Panelboard mount
• Standards: UL 489 / CSA Certified
• Application: Branch circuit over‑current protection

Common Replacements:

• Square D QO120EPD 
• Schneider Electric QOB220
• Eaton BR120