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Siemens B325 Molded Case Circuit Breaker
- 25A
- 3 Pole
- Bolt-On
Siemens
B325
Molded Case Circuit Breaker
Brand
Siemens
SKU
B325
Quantity
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Siemens B325 - 25A 3 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Siemens B325 - 25A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | B325 |
| Series | BL |
| Amperage | 25A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Frame Type | B |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3, P4, P5 Panelboards |
| Wire Gauge | 10-8 AWG (Cu), 10-6 AWG (Al) |
| Max Wire | 8 AWG (Cu), 6 AWG (Al) |
| Min Wire | 10 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Standards | CSA C22.2 No. 5, HACR Rated, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Insta-Wire |
Sold out
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Siemens B325 - 25A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | B325-R |
| Series | BL |
| Amperage | 25A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Frame Type | B |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3, P4, P5 Panelboards |
| Wire Gauge | 10-8 AWG (Cu), 10-6 AWG (Al) |
| Max Wire | 8 AWG (Cu), 6 AWG (Al) |
| Min Wire | 10 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Standards | CSA C22.2 No. 5, HACR Rated, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Insta-Wire |
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Description
The Siemens B325 is a robust 25-amp, 3-pole molded case circuit breaker engineered for reliable commercial power management. Utilizing proven thermal-magnetic trip technology, it provides essential long-time and instantaneous overcurrent protection. This BL-type breaker mounts into Siemens P1, P2, P3, P4, and P5 panelboards via a sturdy bolt-on connection. It carries a 10 kAIC rating at 240VAC, is fully HACR rated, and includes Insta-Wire terminals to streamline the wiring process.Specifications
| Brand | Siemens |
|---|---|
| Part Number | B325 |
| Series | BL |
| Amperage | 25A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 240VAC |
| Frame Type | B |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3, P4, P5 Panelboards |
| Wire Gauge | 10-8 AWG (Cu), 10-6 AWG (Al) |
| Max Wire | 8 AWG (Cu), 6 AWG (Al) |
| Min Wire | 10 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Standards | CSA C22.2 No. 5, HACR Rated, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Insta-Wire |
Product FAQs
4 answersWhich panelboards accept the Siemens B325?
The B325 is a Type BL bolt-on breaker engineered specifically for commercial panelboards, including the Siemens P1, P2, P3, P4, and P5 series. It is not compatible with standard residential load centers, which typically require plug-on Type QP circuit breakers.
Is the Siemens B325 suitable for use as a back-fed main breaker?
Yes. Siemens Type BL circuit breakers, including the B325, are thermal-magnetic breakers without line or load specific markings, making them suitable for reverse feeding. When used as a back-fed main in a panelboard, code requires a separate hold-down kit like the Siemens MBKBFA.
Does the B325 carry an HACR rating?
Yes. The B325 is HACR rated, meaning it is safety certified to provide overcurrent protection for the group motor loads commonly found in commercial heating, air conditioning, and refrigeration equipment.
Can the Siemens B325 replace a legacy ITE B325?
Yes. Siemens acquired ITE, and the current Siemens B325 is the direct, UL listed replacement for older ITE B325 and ITE Gould B325 bolt-on circuit breakers.
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Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
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All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 35 reviews.
Total 5 star reviews: 34 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Reviews Summary
Generated by AI from 66 most recent customer reviews
Last updated 8/15/25
Customers say these circuit breakers meet their specifications and perform as expected. Many reviews highlight the quick delivery times and competitive pricing. Frequent comments address the reliable product quality and ease of installation. The ordering process receives praise for its simplicity, with users noting consistent product availability.
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Rating
35 reviews
- TSTom S.Verified BuyerReviewingSiemens B3100 3 Pole Circuit BreakerI recommend this productRated 5 out of 5 stars8/3/26Superbreakers is our go to!
Great prices, great service and quick delivery.
- MGMaggie G.Verified BuyerReviewingSiemens B250 - 50A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/24/26Great Service
Came in great condition and in an incredibly timely manner. Will continue superbreakers for all of my orders in the future!
- DBDonnie B.Verified BuyerReviewingSiemens B115 - 15A 1 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/11/26New Breaker
Awesome breaker & Superbreakers is a awesome company!
- BLBrian L.Verified BuyerReviewingSiemens B120 - 20A 1 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/4/26Brian
Works great
- JFJoseph F.Verified BuyerReviewingSiemens B120 - 20A 1 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars3/23/26Great value
It was a great value