Square D HDA261501 - 150 A, 600 V, 2-Pole Plug-In Circuit Breaker | AmpState

The Square D HDA261501 is a rugged, plug-in molded case circuit breaker designed to deliver dependable branch circuit protection for panelboards and loadcenters. With a 150-amp rating and a 600-volt capacity, this 2-pole unit is built to handle demanding residential, commercial, and light industrial environments while simplifying installation and replacement through its fast plug-in connection.

Why this breaker stands out

• Fast plug-in connection for rapid installation and easy replacement, minimizing downtime during upgrades or maintenance.
• Thermal-magnetic trip unit provides stable, repeatable protection by combining overload sensing with short-circuit detection, reducing nuisance trips and protecting wiring and devices.
• 2-pole design protects both hot legs in 120/240 V systems, ensuring coordinated protection for shared loads and appliances.
• 600V maximum voltage rating expands compatibility with higher-voltage panel infrastructure and industrial applications, beyond typical low-voltage service requirements.
• OEM loadcenter compatibility is engineered to align with Square D panelboards and loadcenters, supporting reliable fitment and longitudinal performance.
• Versatility across sectors and applications—from home garages and workshops to small offices and light manufacturing—where robust overcurrent and short-circuit protection is essential.

Ideal use cases and practical scenarios

• Upgrading aging branch circuit protection in existing Square D panelboards to meet current electrical needs without extensive rewiring.
• Installing a new feeder or branch circuit in residential, commercial, or light industrial settings that requires a sturdy plug-in break with a 150A rating.
• Performing quick-replace replacements in maintenance cycles, minimizing service interruption thanks to the plug-in design.
• Coordinating protection for equipment and motors that operate on multi-volt circuits where a reliable thermal-magnetic trip is advantageous.

Technical specifications at a glance

• Manufacturer: Square D
• Part Number: HDA261501
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 150A
• Voltage Rating: 600V
• Number of Poles: 2
• Mounting Style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Installation and compatibility notes

Designed to pair with matching OEM Square D panelboards and loadcenters, this plug-in circuit breaker simplifies swap-outs and upgrades. To ensure optimal performance, verify that your panelboard is compatible with 2-pole, 150A plug-in breakers of the HDA series and follow standard electrical safety procedures during installation.

For professionals and do-it-yourself enthusiasts aiming for reliable protection, the Square D HDA261501 delivers precise, consistent performance in a compact, plug-in form factor.