Square D QOB230EPD - 30 A, 240 V, 2-Pole Bolt-On Circuit Breaker | AmpState

The Square D QOB230EPD is a 30A, 240V, 2-pole bolt-on molded case circuit breaker engineered for dependable branch circuit protection in panelboards and load centers. Built to stand up to everyday electrical demands, it combines secure mounting, precise protection, and OEM-wide compatibility to keep critical circuits safe and reliable.

• Secure bolt-on mounting: a rigid connection that resists vibration and helps maintain a dependable bus contact over time.
• Thermal-magnetic trip unit: combines thermal overload protection with instantaneous magnetic response for fast, repeatable protection during short-circuits.
• 2-pole, 30A, 240V configuration: ideal for dedicated 240V circuits in residential, commercial, and light industrial applications.
• Panelboard compatibility: designed to pair with matching OEM load centers and panelboards for straightforward replacement and consistent performance.
• Molded case durability: robust construction suited for demanding environments and long service life.
• Bolt-on mounting advantage: provides a sturdy, vibration-resistant installation that minimizes connection drift in challenging installations.

Why choose the Square D QOB230EPD?

If you’re upgrading or replacing an undersized or failing breaker in a Square D load center or panelboard, the QOB230EPD delivers reliable, repeatable protection for your 30A circuits. The bolt-on design ensures a secure fit in OEM enclosures, reducing nuisance trips caused by loose connections. The thermal-magnetic trip mechanism offers a clear protection profile: the thermal element handles sustained overcurrent events, while the magnetic element activates instantly on severe faults, helping protect wiring, devices, and overall system integrity.

Applications and use cases

Best suited for circuits that require robust, full-load protection at 240V. Ideal scenarios include:

• Dedicated 30A circuits for HVAC equipment, air handlers, or pumps in residential or light commercial settings.
• Protection for small commercial lighting and receptacle circuits fed from panelboards.
• Replacement in compatible Square D panels where a secure, bolt-on solution is preferred over plug-on alternatives.

Technical snapshot

• Manufacturer: Square D (Schneider Electric)
• Part number: QOB230EPD
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 30A
• Voltage rating: 240V
• Number of poles: 2
• Mounting style: Bolt-on
• Application: Branch circuit overcurrent and short-circuit protection

Designed for installers and end users who demand precise protection with a secure, OEM-compatible installation, the Square D QOB230EPD helps keep electrical systems safer and more reliable. Whether upgrading an aging panel or adding a dedicated 30A circuit, this bolt-on breaker offers a clear path to durable, predictable performance in the right Square D load centers and panelboards.