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Square D HDA260504 Molded Case Circuit Breaker

  • 50A
  • 2 Pole
  • I-Line
Square D HDA260504
Molded Case Circuit Breaker
Brand Square D
SKU HDA260504
Select Item Condition
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  • 50A
  • 2 Pole
  • I-Line

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Square D HDA260504 - 50A 2 Pole Molded Case Circuit Breaker

Square D HDA260504 - 50A 2 Pole Molded Case Circuit Breaker

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$746.82 In Stock

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Description

The Square D HDA260504 is a 50A, 2-pole PowerPacT H-Frame molded case circuit breaker. It delivers reliable thermal-magnetic protection with LI trip functions for industrial applications. Featuring a phase BC connection, it installs into Square D I-Line panelboards and switchboards. It also serves as a direct replacement for legacy FA26050 breakers. Rated for 18 kAIC at 480VAC, it includes a Visi-Trip indicator for quick fault identification and current-limiting capabilities.

Specifications

Key specifications
Brand Square D
Series HDA
Amperage 50A
Poles 2
Mounting Style I-Line
Voltage 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC
Phase 1
AIC Rating 25kA @ 240VAC, 18kA @ 480Y/277VAC, 18kA @ 480VAC, 14kA @ 600Y/347VAC, 14kA @ 600VAC, 20kA @ 250VDC
Fit and installation
Frame Type H
Terminal Type Lugs
For Use With Square D I-Line Panelboards, Square D I-Line Switchboards
Wire Gauge 14 AWG - 3/0 AWG (Al/Cu)
Max Wire 3/0 AWG
Min Wire 14 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Adjustable Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Rotary Handle
Accessories Lugs
Standards CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, UL 489
Approval CE, CSA, IEC, NOM, UL
Temp Rating -25C to 70C
Construction Features HACR Rated, Current Limiting, Visual Trip Indicator, Phase Connection BC, Non-Interchangeable Trip

Product FAQs

6 answers
What panelboards are compatible with the HDA260504 circuit breaker?

This breaker is designed exclusively for Square D I-Line panelboards and switchboards. It features a plug-on design that mounts directly to the I-Line busbar stack.

What does the 4 at the end of the HDA260504 part number indicate?

The 4 signifies that this 2-pole breaker is factory-configured for a BC phase connection on the I-Line busbar.

Can the HDA260504 replace older Square D FA series breakers?

Yes, the PowerPacT H-Frame series is the direct replacement for legacy F-Frame breakers. The HDA260504 directly replaces the FA26050BC, fitting into the same I-Line mounting space while offering updated trip technology.

What does the D in the HDA prefix mean for this breaker?

The D indicates the interrupting rating tier for the PowerPacT H-Frame series. For this breaker, the D-tier provides a 25 kA interrupting capacity at 240V AC, 18 kA at 480V AC, and 14 kA at 600V AC.

What wire sizes are accepted by the lugs on this 50A breaker?

The factory-installed load-side lugs accept aluminum or copper wire ranging from 14 AWG to 3/0 AWG.

Does the HDA260504 provide both overload and short-circuit protection?

Yes, it utilizes thermal-magnetic trip technology. The thermal element responds to prolonged overloads, while the magnetic mechanism provides instantaneous tripping during short-circuit faults.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 11 reviews
Rating
Ratings
11 reviews
  • JG
    Janier G.
    Verified Buyer
    Reviewing
    Square D HDA36030 - 30A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    6/4/26
    Fast and good quality every time

    Everything came in good quality

  • ES
    Evan S.
    Flag of United States
    Reviewing
    Square D HDA36060 - 60A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    1/2/24
    Perfect!

    Worked exactly as expected. Working with my rep was extremely pleasant and look forward to doing more business with Superbreakers in the future!

  • MP
    Mike P.
    Flag of United States
    Reviewing
    Square D HDA36150 - 150A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/23/22
    Great Job

    Keep up the good work

  • JK
    Joe K.
    Flag of United States
    Reviewing
    Square D HDA36100 - 100A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    11/24/21
    Quick shipper

    Product arrived perfectly packaged and on time.

  • TW
    Todd W.
    Flag of United States
    Reviewing
    Square D HDA36030 - 30A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    11/25/20
    always quality always on time

    always quality

    always on time