Siemens Q280HH Miniature Circuit Breaker
- 80A
- 2 Pole
- Plug-On
Quantity
Siemens Q280HH - 80A 2 Pole Miniature Circuit Breaker
New
Quantity
Description
Designed for robust commercial distribution, the Siemens Q280HH is a 2-pole, 80-amp miniature circuit breaker. It utilizes fixed thermal-magnetic trip technology to ensure accurate and reliable protection against overloads and short circuits. This Type HQP breaker mounts into Siemens load centers and P1 panelboards. It is also fully cross-listed to replace the discontinued Murray MP280HH, making it ideal for retrofits. With an extra-high interrupting capacity of 65 kAIC at 120/240V.Specifications
| Brand | Siemens |
|---|---|
| Series | Q |
| Amperage | 80A |
| Poles | 2 |
| Mounting Style | Plug-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 65kA @ 120/240VAC |
| Frame Type | Q |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Load Centers, Siemens P1 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) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Padlock Attachment |
|---|---|
| Standards | CSA C22.2 No. 5, HACR Rated, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Common Trip, Extra High Interrupting Capacity |
Product FAQs
7 answersWhat panels are compatible with the Siemens Q280HH?
The Q280HH is designed for use in Siemens load centers, including the PL, ES, and EQ series, as well as Siemens P1 panelboards that accept Type QP plug-on breakers.
Can I install the Q280HH in a non-Siemens panel?
No, the Q280HH is exclusively UL-listed for use in compatible Siemens, legacy Murray, and specific older ITE enclosures. It should not be installed in panels from other manufacturers like Square D, Eaton, or GE.
What does the HH in the Q280HH part number indicate?
The HH designates an extra-high interrupting rating of 65kAIC at 120/240V. This provides a higher level of fault current protection compared to standard 10kAIC (Type QP) or 22kAIC (Type QPH) breakers.
Can the Q280HH replace a standard Q280 or Q280H breaker?
Yes, the Q280HH shares the same physical dimensions and plug-on mounting as the standard Q280 (10kAIC) and Q280H (22kAIC). It can be used as a direct replacement when a 65kAIC interrupting rating is required or preferred.
Is the Q280HH a suitable replacement for legacy Murray breakers?
Yes, Siemens owns the Murray brand, and the Siemens Q280HH is fully cross-listed to replace the discontinued Murray MP280HH circuit breaker.
How much panel space does the Q280HH require?
As a 2-pole Type QP frame breaker, the Q280HH requires two standard 1-inch spaces, taking up a total of 2 inches on the panel bus.
Is the Siemens Q280HH HACR rated?
Yes, this breaker is HACR rated, making it suitable for protecting heating, air conditioning, and refrigeration equipment circuits.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 47 reviews.
- CGCrocefissa G.Verified BuyerReviewingSiemens Q115 - 15A 1 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/18/26Quick delivery and great price.
The circuit breakers are at a great cost.
- JBJason B.Verified BuyerReviewingSiemens Q2150B - 150A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/18/26Great experience
The product was exactly what I needed and it arrived on time.
- DQDon Q.Verified BuyerReviewingSiemens Q3100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars9/14/26Siemens breaker
Great customer experience, great prices and fast shipping... Definitely will be buying her again.
- CSChristopher S.Verified BuyerRated 5 out of 5 stars8/12/26Siemens 60
Perfect new condition
- GSGeorge S.Verified BuyerReviewingSiemens Q2150B - 150A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars3/4/26Great service
Every time I call or go online you have the parts I'm looking for.