Square D HDA260904 - 90 A, 600 V, 2-Pole Plug-In Circuit Breaker | AmpState

Square D HDA260904 is a 90 A, 600 V, 2-pole plug-in molded case circuit breaker designed to shield your electrical system from overcurrent and short circuits. Built for dependable protection in panelboards and loadcenters, this device delivers fast installation and reliable performance where it matters most.

Fast, field-ready plug-in design

The quick plug-in connection streamlines both installation and future replacements. With a secure, flush fit in compatible panelboards, you spend less time on setup and more time on keeping critical circuits protected.

Thermal-magnetic protection you can rely on

Equipped with a thermal-magnetic trip unit, this breaker provides stable, repeatable protection across a wide range of loads. The thermal element handles sustained overloads calmly, while the magnetic element delivers an instantaneous response to short-circuit conditions, helping to safeguard wiring and connected equipment.

OEM-compatible versatility

Designed for use with matching OEM load centers and panelboards, the HDA260904 ensures proper fit and coordinated protection. This makes it an ideal upgrade or replacement option for residential panels, small commercial distributions, and light industrial setups where compatibility matters as much as performance.

Technical snapshot

• Manufacturer: Square D
• Part Number: HDA260904
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 90 A
• Voltage Rating: 600 V
• Number of Poles: 2
• Mounting Style: Plug-in
• Applications: Branch circuit overcurrent and short-circuit protection

Ideal use cases

Perfect for panelboard or loadcenter installations where quick replacement and reliable protection are essential. It’s well-suited for remodeling projects, service upgrades, and new builds in residential, commercial, and light industrial environments. The 2-pole design protects both hot legs for balanced, comprehensive circuit safety.

Why this matters for your electrical system

Choosing a plug-in, OEM-compatible breaker like the HDA260904 minimizes compatibility concerns, reduces downtime during maintenance, and delivers consistent protection under real-world conditions. With proper fit, dependable trip performance, and straightforward installation, it helps keep critical circuits safeguarded and running smoothly.