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Siemens BQD34000S01 Molded Case Circuit Breaker
- 40A
- 3 Pole
- Bolt-On
Siemens
BQD34000S01
Molded Case Circuit Breaker
Brand
Siemens
SKU
BQD34000S01
Quantity
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Siemens BQD34000S01 - 40A 3 Pole Molded Case Circuit Breaker
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Description
Built for advanced control, the Siemens BQD34000S01 is a 3-pole, 40A commercial circuit breaker featuring a factory-installed 120VAC shunt trip for remote disconnect applications. It mounts securely into Siemens P1, P2, P3, P4, and P5 panelboards using a standard bolt-on connection. The breaker utilizes a non-interchangeable thermal magnetic trip mechanism. Delivering 65kAIC at 240VAC and 14kAIC at 480Y/277VAC, it ensures robust LI protection. It is HACR and HID rated for lighting loads.Specifications
| Brand | Siemens |
|---|---|
| Series | BQD |
| Amperage | 40A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480Y/277VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 14kA @ 480Y/277VAC |
| Frame Type | BQD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3, P4, P5 Panelboards |
| Wire Gauge | 14-6 AWG (Cu), 12-6 AWG (Al) |
| Max Wire | 6 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 120VAC (Factory Installed) |
| Standards | CSA C22.2 No. 5, UL 489 |
| Approval | CSA, HACR, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, HID Rated, Common Trip, Non-Interchangeable Trip, Quick-Make/Quick-Break, Trip-Free Mechanism |
Product FAQs
5 answersWhat does the "S01" suffix mean on the Siemens BQD34000S01?
The S01 suffix indicates that this breaker includes a factory-installed 120VAC shunt trip. This allows the breaker to be tripped remotely for emergency power-off or equipment interlock applications. It cannot be added in the field.
Can the BQD34000S01 be installed in standard residential load centers?
No, this is a commercial bolt-on circuit breaker designed specifically for Siemens P1, P2, P3, P4, and P5 panelboards. It will not fit in standard plug-on load centers.
What does the 480/277VAC rating mean for the BQD34000S01?
The 480/277VAC slash rating indicates this breaker is intended for use on solidly grounded wye systems where the line-to-ground voltage does not exceed 277V and the line-to-line voltage does not exceed 480V. It is not suitable for ungrounded or corner-grounded delta 480V systems.
How is the 120VAC shunt trip wired on the BQD34000S01?
The factory-installed shunt trip comes with wire leads that exit the side of the breaker. These leads must be connected to your 120VAC control circuit to enable remote tripping. The internal coil includes a cut-off switch that automatically opens the circuit once the breaker trips.
Does the shunt trip on the BQD34000S01 require continuous power?
No, the shunt trip coil is designed for momentary voltage only. Applying continuous 120VAC power is not required and can damage the coil if the internal cut-off switch fails. It should be wired to a momentary contact switch, such as an emergency stop button.
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Reviews
Review summary
Customers rate this product 4.9 out of 5 based on 61 reviews.
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.
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Rating
61 reviews
- PCPACIFIC C. B.Verified BuyerReviewingSiemens BQD380 - 80A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars8/11/26Used 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.
- BCBubba C.Verified BuyerReviewingSiemens BQD390 - 90A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/24/26BQD 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!
- LPLUCIAN P.Verified BuyerReviewingSiemens BQD2100 - 100A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/21/26Super 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.
- RGRon G.Verified BuyerReviewingSiemens BQD320 - 20A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars7/2/26Breakers
Order was shipped and on time. The ordering process was easy and the service was great.
- GNGreg N.Verified BuyerReviewingSiemens BQD340 - 40A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/26/26Excellent 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.