Built for heavy-duty commercial applications, this 80A thermal-magnetic device delivers consistent long-time and instantaneous overcurrent protection. Electricians can bolt this three-pole unit into Siemens P1 through P5 panelboards to establish a permanent, vibration-resistant circuit connection. Rated at 65kAIC for 240V systems, the breaker easily clears high-level faults while supporting HACR-rated heating and cooling equipment loads.
HACR Rated, Common Trip, Non-Interchangeable Trip, Quick-Make/Quick-Break, Trip-Free Mechanism
Product FAQs
8 answers
Which Siemens panelboards accept the BQD380 breaker?
This bolt-on branch circuit breaker is exclusively engineered for Siemens P-Series lighting and distribution panelboards, including the P1, P2, P3, P4, and P5 models. It will not physically fit or bolt into standard residential load centers or competing commercial panelboards.
Can I use the Siemens BQD380 in place of an older ITE BQD380?
Yes. Because Siemens acquired the ITE electrical division, the modern Siemens BQD380 serves as an exact, direct replacement for legacy ITE BQD380 models without requiring any field modifications.
What is the difference between the Siemens BQD380 and the CQD380?
While both breakers share identical 80A, 3-pole electrical ratings, their mounting connections differ. The BQD380 is a bolt-on breaker intended for panelboard bus mounting. The CQD380 is a cable-in, cable-out model designed for independent DIN rail or surface mounting.
What wire gauge sizes are compatible with the load lugs on the BQD380?
When wiring the BQD380, the standard load-end lugs accommodate 8 to 1 AWG copper (Cu) or 6 to 1/0 AWG aluminum (Al) conductors. Always use the specified tightening torque printed on the breaker label to ensure a secure and compliant connection.
Is the trip unit on the BQD380 adjustable for specific coordination applications?
No, this breaker utilizes a fixed thermal-magnetic trip unit. The long-time overload and instantaneous short-circuit trip thresholds are factory calibrated and cannot be modified in the field.
Does the BQD380 provide equipment ground fault or arc fault protection?
No. The BQD380 strictly provides standard thermal-magnetic overcurrent and short-circuit protection. It does not include integral ground fault (GFCI, EPD) or arc fault (AFCI) sensing components.
Is the Siemens BQD380 suitable for reverse feed applications?
Yes, the BQD series is approved for reverse feeding. Because the internal thermal-magnetic mechanisms are not directionally dependent, line and load connections can be swapped if permitted by your local electrical code and specific panel design.
Can the BQD380 be used as a switch to control high-intensity discharge (HID) lighting?
No. Only 1-pole BQD models up to 50A carry HID or SWD (Switching Duty) ratings. The 3-pole BQD380 is not UL listed to act as a direct switch for these specific lighting circuits.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 61 reviews.
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Rated 4.9 out of 5 stars
Based on 61 reviews
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Reviews Summary
Generated by AI from 47 most recent customer reviews
Last updated 8/15/25
Customers say this electrical supply service delivers breakers with exceptional speed and reliability. Many reviews mention the straightforward ordering process through an easy-to-navigate website. Frequent comments address competitive pricing and accurate product delivery. The selection of breakers receives consistent praise, with users noting the products match specifications precisely. Reviews highlight the availability of inventory and prompt shipping, often exceeding delivery expectations.
Siemens BQD380 - 80A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
8/11/26
Used breaker in like New state
Order a reconditioned breaker to fulfill an order, it was in excellent condition . Price was just right.
Very satisfied with my purchase and the end user was happy as well.
BC
Bubba C.
Verified Buyer
Reviewing
Siemens BQD390 - 90A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
7/24/26
BQD breakers
Always love working with Superbreakers! Excellent pricing and availability on pretty much any sort of breaker you need. The packaging is always top notch and they ship your order out as soon as you purchase. Love working with the Superbreakers team!
LP
LUCIAN P.
Verified Buyer
Reviewing
Siemens BQD2100 - 100A 2 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
7/21/26
Super breakers
Very good prices , well stock inventory.
Looking forward for more business opportunities.
I like the knowledge that the company employs
professionals and people who are willing to help and support.
RG
Ron G.
Verified Buyer
Reviewing
Siemens BQD320 - 20A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
7/2/26
Breakers
Order was shipped and on time. The ordering process was easy and the service was great.
GN
Greg N.
Verified Buyer
Reviewing
Siemens BQD340 - 40A 3 Pole Molded Case Circuit Breaker
I recommend this product
Rated 5 out of 5 stars
6/26/26
Excellent Customer Service
Easy ordering & Drew Wilson helped me with this order. I will definitely be using you again in the near future especially with his excellent service he provided.