Siemens Q250HH Miniature Circuit Breaker
- 50A
- 2 Pole
- Plug-On
Siemens
Q250HH
Miniature Circuit Breaker
Brand
Siemens
SKU
Q250HH
Quantity
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Siemens Q250HH - 50A 2 Pole Miniature Circuit Breaker
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Description
Built for commercial and industrial applications, the Siemens Q250HH is a 50A, 2-pole miniature circuit breaker from the QP family. It features a robust 65kAIC interrupting rating at 120/240V, making it ideal for systems requiring higher fault protection. This plug-on breaker mounts into Siemens load centers and compatible panelboards. It includes Insta-Wire connectors for faster installation and serves as a replacement for the legacy MP250HH.Specifications
| Brand | Siemens |
|---|---|
| Series | Q |
| Amperage | 50A |
| 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, Panelboards |
| Wire Gauge | 8-6 AWG (Cu), 8-4 AWG (Al) |
| Max Wire | 6 AWG (Cu), 4 AWG (Al) |
| Min Wire | 8 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| 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, Insta-Wire |
Product FAQs
6 answersWhat does the HH in the Q250HH catalog number signify?
The HH designates a high interrupting rating of 65kAIC at 240V. This is significantly higher than the standard Q250, which is rated at 10kAIC, and the Q250H, which is rated at 22kAIC.
Which load centers are compatible with the Q250HH breaker?
This breaker is designed for use in Siemens PL, ES, SN, EQ, and Ultimate series load centers that accept Type QP plug-on circuit breakers.
Can the Siemens Q250HH replace older ITE or Gould breakers?
Yes. Siemens acquired the ITE and Gould electrical lines. The Siemens Q250HH is the direct, UL listed replacement for older ITE and Gould Q250HH circuit breakers.
Can the Q250HH be used as a back-fed main breaker?
Yes, it can be used as a main breaker in compatible Siemens load centers, but it requires a main breaker hold-down kit, such as the ECMBR1 or ECMBR2, to comply with National Electrical Code requirements.
Does the Q250HH provide ground-fault or arc-fault protection?
No. The Q250HH is a standard thermal-magnetic circuit breaker providing overload and short-circuit protection. It does not feature GFCI or AFCI capabilities.
What does the LI trip function code mean for this breaker?
The LI code indicates that the breaker uses a thermal-magnetic trip unit with Long-Time and Instantaneous trip functions. The long-time function protects against sustained overloads, while the instantaneous function trips immediately during a short circuit.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 47 reviews.
Reviews Summary
Generated by AI from 91 most recent customer reviews
Last updated 8/1/25
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.
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Rating
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.