Siemens Q380H Molded Case Circuit Breaker
- 80A
- 3 Pole
- Plug-On
Quantity
Siemens Q380H - 80A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Part of the Siemens QP family, the Q380H is an 80-amp molded case circuit breaker engineered for commercial and industrial environments. It delivers reliable 3-phase power distribution while maintaining a high interrupting capacity of 22kAIC at 240VAC. This plug-on breaker mounts securely into Siemens load centers and panelboards. For facility managers handling legacy systems, it acts as a drop-in substitute for the discontinued Murray MP380KH. It features fixed thermal-magnetic trip units.Specifications
| Brand | Siemens |
|---|---|
| Part Number | Q380H |
| Series | Q |
| Amperage | 80A |
| Poles | 3 |
| Mounting Style | Plug-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 22kA @ 240VAC |
| Frame Type | Q |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Load Centers, Panelboards |
| Wire Gauge | 8-2/0 AWG (Cu/Al) |
| Max Wire | 2/0 AWG |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Padlock Attachment |
|---|---|
| Accessories | Insta-Wire |
| Standards | HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | High Interrupting Capacity, HACR Rated |
Product FAQs
5 answersWhich load centers and panelboards are compatible with the Siemens Q380H?
The Q380H is a Type QP circuit breaker designed for use in Siemens PL, ES, and G series load centers, as well as compatible Siemens panelboards. It is also backward compatible with legacy Murray and ITE panels that accept plug-on QP breakers.
What is the difference between the Siemens Q380 and the Q380H?
The H in the Q380H catalog number indicates a higher interrupting rating. While the standard Q380 provides a 10kAIC rating at 240VAC, the Q380H delivers a 22kAIC rating, making it suitable for systems with higher available fault currents.
What type of wire can be used with the Q380H terminal lugs?
The lugs on this breaker are rated for both copper and aluminum conductors. They accept wire sizes ranging from 8 AWG to 2/0 AWG. Always verify local electrical codes for proper wire sizing based on the circuit load and temperature ratings.
Can I use the Q380H to replace an older Murray or ITE breaker?
Yes, Siemens Type QP breakers like the Q380H are the direct, UL-listed replacements for discontinued Murray models, such as the MP380KH, and older ITE plug-on circuit breakers with matching specifications.
Can I install this Siemens QP breaker in an Eaton or Square D panel?
No. Siemens Type QP breakers are not UL-listed or approved for use in Eaton, Square D, or GE load centers. Mixing breaker brands can compromise the panel safety listing and create a fire hazard due to improper bus bar connections.
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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.