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Square D FH16030B Molded Case Circuit Breaker

  • 30A
  • 1 Pole
  • I-Line
Square D FH16030B
Molded Case Circuit Breaker
Brand Square D
SKU FH16030B
Select Item Condition
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  • 30A
  • 1 Pole
  • I-Line

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Square D FH16030B - 30A 1 Pole Molded Case Circuit Breaker

Square D FH16030B - 30A 1 Pole Molded Case Circuit Breaker

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$348.00 No Stock

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Description

Providing robust circuit protection, this 30A molded case breaker from Square D is tailored for industrial use. It is built to integrate with I-Line panelboards. The breaker features an I-Line plug-in mounting style that ensures a solid connection. Facilities looking to upgrade should reference the BGA160303 as the recommended replacement. Equipped with a Phase B factory configuration, it utilizes a thermal-magnetic trip. The device provides LI protection with a 65kAIC rating at 240VAC.

Specifications

Key specifications
Brand Square D
Part Number FH16030B
Series FH
Amperage 30A
Poles 1
Mounting Style I-Line
Voltage 240VAC, 277VAC, 125VDC
Phase 1
AIC Rating 65kA @ 240VAC, 25kA @ 277VAC, 10kA @ 125VDC
Fit and installation
Frame Type FH
Terminal Type Lugs
For Use With Square D I-Line Panelboards
Wire Gauge 14-4 AWG (Cu/Al)
Max Wire 4 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, Fixed Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch
Accessories Phase B Connection (Factory Configured), Lugs (AL50FA)
Standards HACR, UL 489, CSA C22.2 No. 5, NEMA AB 1
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated, High Interrupting Capacity, Visual Trip Indicator

Product FAQs

6 answers
What type of panelboard is the Square D FH16030B compatible with?

This breaker is designed exclusively for use in Square D I-Line panelboards and switchboards. It features an I-Line style plug-in connection for quick installation.

Is the Square D F-frame circuit breaker series still in active production?

The F-frame series is a legacy product and is considered obsolete by the manufacturer. The modern equivalent for F-frame breakers is the Square D PowerPact H-frame series.

What is the difference between Square D FA and FH circuit breakers?

The primary difference is the interrupting capacity. FH frame breakers have a higher interrupting rating than standard FA frame breakers, making them suitable for systems with higher available fault currents.

What wire sizes and materials are accepted by the FH16030B lugs?

The factory lugs on this breaker accept wire sizes from 14 AWG to 4 AWG and are rated for both copper and aluminum conductors.

Can the FH16030B be used in DC applications?

Yes, this breaker is rated for DC applications up to 125VDC with an interrupting capacity of 10kAIC.

What does the LI trip function code mean on this breaker?

The LI designation indicates that the thermal magnetic trip unit provides Long-Time (L) protection for overloads and Instantaneous (I) protection for short circuits. Both settings are fixed on this model.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 10 reviews
Rating
Ratings
10 reviews
  • DM
    Donald M.
    Verified Buyer
    Reviewing
    Square D FH36030 - 30A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/18/26
    Excellent Service

    The support team with Super Breakers went over and beyond in ensuring the breakers were on site for an emergency repair…

    CAVA Construction Manager very pleased!

    Donald Mayo

    Mayo Electric

  • PH
    payton h.
    Verified Buyer
    Reviewing
    Square D FH36090 - 90A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/17/26
    great

    great straightforward company has almost everything you could ever need in stock

  • SG
    Shawn G.
    Verified Buyer
    Reviewing
    Square D FH36020 - 20A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    1/20/26
    Thanks !

    Excellent service & gear per usual !

    Thanks !

  • E
    Earnest
    Verified Buyer
    Reviewing
    Square D FH36060 - 60A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    10/3/25
    Fast delivery and quality

    The breaker was in great condition.

  • JP
    Jason P.
    Verified Buyer
    Reviewing
    Square D FH36050 - 50A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/5/25
    Breakers

    Order was placed and they came in on time in good condition