Overview
The Square D QO220HID is a 2-pole miniature circuit breaker designed for branch circuit protection in residential, commercial, and light industrial applications. Rated at 20A, 120/240VAC with a 10kA interrupt capacity, this thermal-magnetic breaker provides dependable overload and short-circuit protection. The plug-on mount design integrates directly into QO load centers and compatible panelboards, offering a compact and reliable solution for electrical distribution systems.
Key Features
- Thermal-magnetic trip mechanism for overload and short-circuit protection
- VISI-TRIP visual indicator shows breaker trip status at a glance
- Quick-make, quick-break toggle action with positive handle indication
- Overcenter trip-free mechanism ensures all poles open simultaneously on any pole fault
- Plug-on mount for QO load centers, NQ panelboards, and OEM bases
- UL489 listed; meets National Electrical Code requirements
Technical Specifications
- Voltage Rating: 120/240 VAC
- Current Rating: 20 Amperes
- Number of Poles: 2
- Interrupt Rating: 10 kA at 120/240VAC
- Trip Type: Thermal Magnetic
- Frequency: 50/60 Hz
- Wire Size: 14 to 8 AWG (Pressure Plate Connection)
- Operating Temperature: 40°C (104°F)
- Mounting: Plug-On
- Dimensions: 1.5 in W × 2.91 in D × 3 in H
- Frame Size: QO/100A
- Certifications: UL489, NEMA Standards
Typical Applications
The Square D QO220HID is ideal for protecting branch circuits in:
- Residential panel boards and load centers
- Commercial distribution systems
- Light industrial control panels
- OEM machinery and equipment cabinets
- Standard electrical panelboards requiring thermal-magnetic protection
Compatibility & Replacements
Compatible With
- Square D QO load centers (all frame sizes accommodating QO breakers)
- Square D NQ and NQOD panelboards
- Square D Speed-D switchboard distribution panels
- OEM mounting bases designed for QO-series breakers
- Standard 120/240VAC single-phase distribution systems
Replaces / Drop-In Replacement For
The QO220HID is the HID (with identification/handle tie) variant of the standard QO220. Direct equivalents include the QO220 base model. Verify compatibility with your specific load center model before ordering, as older panelboards may require different breaker series.
Works With
- Square D QO series load centers
- National Electrical Code (NEC) compliant electrical systems
- Standard residential and commercial panelboards
- Any system requiring UL489-listed thermal-magnetic branch circuit protection
