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Siemens Q280HH00S01 Miniature Circuit Breaker

  • 80A
  • 2 Pole
  • Plug-On
Siemens Q280HH00S01
Miniature Circuit Breaker
Brand Siemens
SKU Q280HH00S01
Select Item Condition
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  • 80A
  • 2 Pole
  • Plug-On

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Siemens Q280HH00S01 - 80A 2 Pole Miniature Circuit Breaker

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$310.56 In Stock

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Description

Part of the QP family, the Siemens Q280HH00S01 is a high-interrupting miniature circuit breaker built for commercial applications. It delivers reliable thermal-magnetic overcurrent protection for demanding electrical systems. This two-pole, 80A breaker features a plug-on mounting style that installs into standard Siemens load centers and panelboards. A factory-installed 120VAC shunt trip allows for remote tripping of the circuit. It features an extra-high 65 kAIC rating at 120/240V.

Specifications

Key specifications
Brand Siemens
Series Q
Amperage 80A
Poles 2
Mounting Style Plug-On
Voltage 120/240VAC
Phase 1
AIC Rating 65kA @ 120/240VAC
Fit and installation
Terminal Type Lugs
For Use With Siemens Load Centers, Siemens Panelboards
Wire Gauge 4-1/0 AWG (Cu), 2-1/0 AWG (Al)
Max Wire 1/0 AWG
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
Standards and features
Available Options Padlock Attachment
Accessories Shunt Trip
Standards CSA C22.2 No. 5, HACR Rated, UL 489
Approval CSA, UL
Temp Rating 40C
Construction Features Extra High Interrupting Capacity, HACR Rated, Common Trip

Product FAQs

5 answers
What does the 00S01 suffix indicate on the Q280HH00S01?

The 00S01 suffix indicates that this breaker includes a factory-installed 120V shunt trip accessory. This allows the breaker to be tripped remotely using a 120VAC control signal.

How does the Q280HH00S01 differ from standard Q280 or Q280H breakers?

The "HH" designation indicates an HQP frame with an extra-high interrupting rating of 65kAIC at 120/240VAC. In comparison, standard Q280 (QP frame) breakers are rated at 10kAIC, and Q280H (QPH frame) breakers are rated at 22kAIC.

Can this breaker be used to replace older Murray MP-T series breakers?

Yes, Siemens QP and HQP frame breakers are UL listed to replace discontinued Murray MP-T equivalents, such as the MP280HH, in compatible load centers.

Which panels are compatible with the Q280HH00S01?

This plug-on breaker is designed for installation in Siemens load centers and Siemens panelboards that accept QP or HQP frame miniature circuit breakers.

What are the wire size requirements for the Q280HH00S01 terminals?

The breaker lugs accept 4 AWG to 1/0 AWG copper conductors or 2 AWG to 1/0 AWG aluminum conductors. Always verify that your selected wire size meets the 80A circuit requirements and local electrical codes.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 48 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
48 reviews
  • DT
    Dawn T.
    Verified Buyer
    Reviewing
    Siemens Q2150B - 150A 2 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    10/8/26
    Timely

    This is exactly what I was looking for! Worked perfectly, arrived promptly, no hassles.

  • 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