Siemens / ITE QP3B070 Miniature Circuit Breaker
- 70A
- 3 Pole
- Plug-On
Quantity
Siemens / ITE QP3B070 - 70A 3 Pole Miniature Circuit Breaker
New
Quantity
Description
Designed to support three-phase systems, the Siemens QP3B070 is a 3-pole, 70A miniature circuit breaker. It installs effortlessly into legacy ITE, Gould, Murray, and Siemens load centers, offering a reliable replacement option without requiring panel modifications. Rated for 10kAIC at 240VAC, this plug-on unit features fixed thermal-magnetic trip functions for dependable overload and short-circuit defense. It is HACR rated and serves as an exact substitute for Q370 and MP370 breakers.Specifications
| Brand | Siemens / ITE |
|---|---|
| Part Number | QP3B070 |
| Series | QP |
| Amperage | 70A |
| Poles | 3 |
| Mounting Style | Plug-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Siemens Load Centers, ITE Load Centers, Gould Load Centers, Murray Load Centers |
| Wire Gauge | 8-2 AWG (Cu), 8-2 AWG (Al) |
| Max Wire | 2 AWG |
| 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, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
Product FAQs
5 answersWhat load centers are compatible with the QP3B070?
This breaker installs into Siemens, ITE, Gould, and Murray load centers that accept 3-pole Type QP plug-on circuit breakers.
Can the QP3B070 replace a Q370 or MP370 breaker?
Yes, the QP3B070 serves as an exact substitute for legacy Siemens Q370 and Murray MP370 3-pole 70A circuit breakers.
What are the wire size and material requirements for the QP3B070 terminals?
The standard lug terminals accept 8 AWG through 2 AWG conductors and are rated for both copper and aluminum wiring.
Is the QP3B070 HACR rated?
Yes, this breaker is HACR rated, making it suitable for protecting heating, air conditioning, and refrigeration equipment circuits.
What does the LI trip function code indicate on this breaker?
The LI designation means this thermal magnetic breaker provides fixed Long-Time overload protection and Instantaneous short-circuit protection.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 26 reviews.
- DTDaniel T.Verified BuyerReviewingSiemens Q380 - 80A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars9/24/26Great service as always
It is always great to know that when I need a product fast and reliably I can count on SuperBreakers to deliver.
- JRJorge R.Verified BuyerReviewingSiemens Q360 - 60A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars4/7/26Just as promised!
Thank you for delivering my breakers just as you promised!
Great service!
- TQTimothy Q.Verified BuyerReviewingSiemens Q250 - 50A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars3/21/26Great service
My breakers arrived quickly at a good price.
I would definitely use SuperBreakers again.
- JMjesse m.Verified BuyerReviewingSiemens Q36000S01 - 60A 3 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars1/20/26great experience
smooth experience ordering and delivery, thank you
- JFJim F.Verified BuyerReviewingSiemens Q28000S01 - 80A 2 Pole Miniature Circuit BreakerI recommend this productRated 5 out of 5 stars12/7/25An OEM product delivered on time for the job.
Won't be chasing all over town to pay an inflated price again. Or spend hours at a counter waiting on the cheapest dummy they could hire to find a product he knows nothing about.