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Siemens Q3100HH Miniature Circuit Breaker

  • 100A
  • 3 Pole
  • Plug-On
Siemens Q3100HH
Miniature Circuit Breaker
Brand Siemens
SKU Q3100HH
Select Item Condition
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  • 100A
  • 3 Pole
  • Plug-On

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Siemens Q3100HH - 100A 3 Pole Miniature Circuit Breaker

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$435.00 In Stock

Quantity

Description

Engineered for maximum fault protection, the Siemens Q3100HH is a 100A, three-pole miniature circuit breaker boasting an extra-high 65kAIC interrupt rating at 240VAC. It provides robust thermal-magnetic defense for demanding commercial and industrial applications. This HQP series plug-on breaker fits seamlessly into Siemens load centers and panelboards. It also serves as an exact substitute for the MP3100HH.

Specifications

Key specifications
Brand Siemens
Part Number Q3100HH
Series Q
Amperage 100A
Poles 3
Mounting Style Plug-On
Voltage 240VAC
Phase 3
AIC Rating 65kA @ 240VAC
Fit and installation
Frame Type Q
Terminal Type Lugs
For Use With Siemens Load Centers, Siemens Panelboards
Wire Gauge 4-1/0 AWG (Cu), 2-2/0 AWG (Al)
Max Wire 1/0 AWG (Cu), 2/0 AWG (Al)
Min Wire 4 AWG (Cu), 2 AWG (Al)
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 Padlock Attachment
Standards CSA C22.2 No. 5, HACR Rated, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features HACR Rated, Extra High Interrupting Capacity, Common Trip

Product FAQs

6 answers
What panels are compatible with the Siemens Q3100HH?

The Q3100HH is designed for use in Siemens load centers and panelboards that accept Type HQP plug-in circuit breakers.

Can the Siemens Q3100HH replace a Murray MP3100HH?

Yes, the Siemens Q3100HH serves as an exact, manufacturer-approved substitute for the obsolete Murray MP3100HH circuit breaker.

What does the 65kAIC rating indicate for this breaker?

The 65kAIC rating means the breaker can safely interrupt up to 65,000 amps of short-circuit fault current at 240VAC. This extra-high interrupting capacity provides robust protection for demanding commercial and industrial applications where high fault currents are possible.

Is the Q3100HH a plug-on or bolt-on circuit breaker?

The Q3100HH is a plug-in circuit breaker (Type HQP). It snaps directly into the busbar of compatible Siemens panels.

Does the Q3100HH provide ground fault or arc fault protection?

No, the Q3100HH is a standard thermal-magnetic breaker that provides overload and short-circuit protection. It does not include GFCI or AFCI safety features.

Can I use the Q3100HH in a single-phase panel?

No, the Q3100HH is a 3-pole breaker designed exclusively for 3-phase, 240VAC electrical systems. It will not fit or function properly in a single-phase load center.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 47 reviews
Reviews Summary
Customers say these circuit breakers arrive quickly and match their specifications perfectly. Many reviews mention success finding hard-to-locate specialty breakers through this supplier. Common feedback includes praise for the accurate product descriptions, reliable shipping, and competitive pricing. While some note occasional stock limitations, users consistently report the breakers fit and function as intended.
Rating
Ratings
47 reviews
  • CG
    Crocefissa G.
    Verified Buyer
    Reviewing
    Siemens Q115 - 15A 1 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/18/26
    Quick delivery and great price.

    The circuit breakers are at a great cost.

  • JB
    Jason B.
    Verified Buyer
    Reviewing
    Siemens Q2150B - 150A 2 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/18/26
    Great experience

    The product was exactly what I needed and it arrived on time.

  • DQ
    Don Q.
    Verified Buyer
    Reviewing
    Siemens Q3100 - 100A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    9/14/26
    Siemens breaker

    Great customer experience, great prices and fast shipping... Definitely will be buying her again.

  • CS
    Christopher S.
    Verified Buyer
    Reviewing
    Siemens Q260HH - 60A 2 Pole Miniature Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/12/26
    Siemens 60

    Perfect new condition

  • GS
    George S.
    Verified Buyer
    Reviewing
    Siemens Q2150B - 150A 2 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    3/4/26
    Great service

    Every time I call or go online you have the parts I'm looking for.