Siemens B32000S07 Miniature Circuit Breaker
- 20A
- 3 Pole
- Bolt-On
Quantity
Siemens B32000S07 - 20A 3 Pole Miniature Circuit Breaker
New
Quantity
Description
Built for commercial applications, the Siemens B32000S07 is a BL series miniature circuit breaker. It delivers reliable thermal-magnetic protection for 240V three-phase systems. This device mounts into Siemens P1 through P5 panelboards via a secure bolt-on connection, ensuring a precise fit for compatible distribution equipment. It features a factory-installed 24VAC shunt trip, allowing the breaker to be opened remotely. The unit is rated at 10 kAIC and carries an HACR certification.Specifications
| Brand | Siemens |
|---|---|
| Series | BL |
| Amperage | 20A |
| 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 | 14-10 AWG (Cu), 12-10 AWG (Al) |
| Max Wire | 10 AWG |
| Min Wire | 14 AWG (Cu), 12 AWG (Al) |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Available Options | Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Shunt Trip 24VAC |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated |
Product FAQs
5 answersWhat does the "00S07" suffix mean on the Siemens B32000S07 catalog number?
The "00S07" suffix indicates that this breaker is factory equipped with a 24V shunt trip accessory. This allows the breaker to be tripped remotely using a 24V control signal.
Which Siemens panelboards are compatible with the B32000S07 circuit breaker?
This BL series bolt-on breaker is designed for use in Siemens P1, P2, P3, P4, and P5 panelboards. Because it uses a bolt-on connection, it is not compatible with standard plug-on load centers.
What wire sizes are accepted by the lugs on this 20A BL breaker?
The load terminals accept 14 to 10 AWG copper wire, or 12 to 10 AWG aluminum wire.
Is the Siemens B32000S07 HACR rated for HVAC equipment?
Yes, this breaker is HACR rated, making it suitable for use with heating, air conditioning, and refrigeration equipment that requires this specific protection standard.
How does the 24V shunt trip improve safety in an electrical system?
The integrated 24V shunt trip allows the breaker to be opened remotely by an external control circuit, such as a fire alarm panel or emergency stop button. This instantly cuts power to the connected load during an emergency.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
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.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
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.
- 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