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The HDA260504 Square D 2P 50A 600V BC PH I Line is a reliable circuit breaker designed for high performance in industrial and commercial applications. This double-pole breaker offers robust protection for your electrical systems with a 50-amp rating, ensuring safety and efficiency. Ideal for various setups and easy to install.
The HDA260504 is an I-Line frame bolt-on MCCB rated for Square D I-Line panelboards and switchboards designed to accept the HDA frame series at 600V. It is not intended for residential loadcentres such as QO or Homeline panels. Contact our team with your panelboard model to confirm exact compatibility.
Square D's HDA I-Line frame series is considered legacy/hard-to-find in many configurations. Northern Breaker Group specializes in obsolete and difficult-to-source breakers — contact us for current stock availability or to discuss a tested reconditioned unit if new stock is limited.
'600V' is the voltage rating, 'BC' denotes the bolt-on connection style, 'PH I LINE' refers to Square D's Phase I I-Line panelboard system. This means the breaker is designed to bolt onto I-Line bus bars in Phase I configured Square D panelboards and switchboards — an important distinction when sourcing a direct replacement.
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