Engineered for demanding environments, the Siemens BQD325 is a 25A, 3-pole molded case circuit breaker from the SENTRON family. It provides essential long-time and instantaneous thermal-magnetic protection for commercial and industrial electrical systems. This bolt-on MCCB is fully compatible with Siemens P1, P2, P3, P4, and P5 panelboards. It comes equipped with load-side lugs for efficient installation. Rated at 14kAIC at 480Y/277V, this breaker is HACR and HID rated for versatile use.
Which Siemens panelboards accept the BQD325 circuit breaker?
The BQD325 is designed for installation in Siemens P1, P2, P3, P4, and P5 series panelboards.
What wire sizes are accepted by the load lugs on the BQD325?
The load terminals accommodate 14 to 6 AWG copper (Cu) wire or 12 to 6 AWG aluminum (Al) wire. The connectors are UL listed for 60 and 75 degree Celsius conductors.
Does the BQD325 include both line and load lugs?
No. Because it is a panelboard-mounted breaker, the BQD325 has a bolt-on connection for the line side to attach directly to the panel bus. It features standard wire lugs on the load side only.
Will the modern Siemens BQD325 replace an older I-T-E branded BQD325?
Yes. Siemens acquired I-T-E and maintained the BQD product frame. The current Siemens BQD325 serves as a direct, drop-in replacement for legacy I-T-E breakers with the exact same catalog number.
Can this 480Y/277VAC breaker be applied on a 480V Delta system?
No. Circuit breakers with a 480Y/277V slash rating are designed specifically for solidly grounded Wye systems. They must not be used on ungrounded Delta or corner-grounded Delta systems, as the line-to-ground voltage on those systems exceeds the 277V maximum rating of the breaker.
What is the difference between the BQD325 and CQD325 breakers?
Both are 25A, 3-pole thermal-magnetic breakers within the same frame group, but they have different mounting styles. The BQD325 is a bolt-on breaker for panelboards, whereas the CQD325 is designed for DIN rail or surface mounting and includes lugs on both the line and load ends.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 61 reviews.
4.9
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.