Square D QOB220H 2 Pole Bolt-on Circuit Breaker 20A 240V

Product Description

The SQUARE D QOB220H is a 2-pole, bolt-on miniature circuit breaker rated for 20 amps at 240 volts AC. It provides overcurrent and short-circuit protection in residential and light commercial electrical panels. The bolt-on terminal design secures the breaker firmly to the bus bar, reducing the risk of connection loosening over time. Pressure plate terminals accept 14 to 8 AWG conductors, making it suitable for branch circuits serving HVAC equipment, water heaters, and other 240-volt loads. Licensed electricians install this breaker as a direct panel replacement or in new circuit installations.

This breaker is suited for 240-volt branch circuit applications in load centers and distribution panels. Typical uses include dedicated circuits for HVAC condensing units, electric water heaters, dryers, and similar double-pole loads requiring reliable overcurrent protection. The bolt-on mounting style is commonly required in commercial-grade panelboards where vibration or mechanical stress demands a more secure breaker-to-bus connection than a standard plug-in design provides.

Key Features

• 20-amp, 240-volt AC rating for double-pole branch circuit protection
• Bolt-on mounting style for secure bus bar connection
• Pressure plate terminal connection accepts 14 to 8 AWG conductors
• 2-pole design interrupts both legs of a 240-volt circuit simultaneously
• Compact form factor at 1.5 inches height, 3.5 inches width, 3.5 inches length

Compatibility

Designed as an OEM-style replacement bolt-on miniature circuit breaker for compatible Square D bolt-on style load centers and panelboards requiring a 2-pole, 20-amp, 240-volt breaker with pressure plate terminals.

Installation Notes

Installation must be performed by a licensed electrician in accordance with the National Electrical Code (NEC) and all applicable local codes. De-energize and lock out the main panel before removing or installing any circuit breaker. Verify conductor AWG is within the 14 to 8 AWG range supported by the pressure plate terminals before terminating wires. Do not re-energize the panel until the breaker is fully seated on the bus bar and the panel cover is secured.