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Siemens BQ1B040H Molded Case Circuit Breaker
- 40A
- 1 Pole
- Bolt-On
Siemens
BQ1B040H
Molded Case Circuit Breaker
Brand
Siemens
SKU
BQ1B040H
Quantity
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Siemens BQ1B040H - 40A 1 Pole Molded Case Circuit Breaker
New
Quantity
Quantity
Siemens BQ1B040H - 40A 1 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Part Number | BQ1B040H |
| Series | BQH |
| Amperage | 40A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | BQ |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Panelboards (P1, P2, P3, P4, P5) |
| Wire Gauge | 14-6 AWG (Cu), 12-6 AWG (Al) |
| Max Wire | 6 AWG (Cu), 6 AWG (Al) |
| 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 | Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, HACR Rated, HID Rated, UL 489 |
| Approval | CSA, HACR, HID, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Non-Interchangeable Trip |
Sold out
Quantity
Siemens BQ1B040H - 40A 1 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Part Number | BQ1B040H-R |
| Series | BQH |
| Amperage | 40A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | BQ |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Panelboards (P1, P2, P3, P4, P5) |
| Wire Gauge | 14-6 AWG (Cu), 12-6 AWG (Al) |
| Max Wire | 6 AWG (Cu), 6 AWG (Al) |
| 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 | Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, HACR Rated, HID Rated, UL 489 |
| Approval | CSA, HACR, HID, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Non-Interchangeable Trip |
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Description
Part of the BQH series, the Siemens BQ1B040H is a 1-pole, 40A molded case circuit breaker built for demanding commercial and industrial applications. It provides reliable thermal-magnetic protection for branch circuits. This bolt-on breaker mounts securely into Siemens P1, P2, P3, P4, and P5 panelboards. It also serves as a functional cross-reference for BAB1040H and THQB1140 breakers. Featuring a high interrupting capacity of 22kA at 120/240VAC, it is HACR and HID lighting rated.Specifications
| Brand | Siemens |
|---|---|
| Part Number | BQ1B040H |
| Series | BQH |
| Amperage | 40A |
| Poles | 1 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 1 |
| AIC Rating | 22kA @ 120/240VAC |
| Frame Type | BQ |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Panelboards (P1, P2, P3, P4, P5) |
| Wire Gauge | 14-6 AWG (Cu), 12-6 AWG (Al) |
| Max Wire | 6 AWG (Cu), 6 AWG (Al) |
| 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 | Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, HACR Rated, HID Rated, UL 489 |
| Approval | CSA, HACR, HID, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Non-Interchangeable Trip |
Product FAQs
5 answersWhich panelboards are compatible with the BQ1B040H circuit breaker?
This bolt-on breaker is designed for use in Siemens P1, P2, P3, P4, and P5 series commercial panelboards. It mounts directly to the panel bus using a bolted connection.
Can I install the BQ1B040H in a standard Siemens residential load center?
No. The BQ1B040H is a bolt-on breaker intended for commercial panelboards. Standard Siemens residential load centers require plug-on breakers, such as the QP series.
What is the difference between Siemens BQ and BQH circuit breakers?
The primary difference is the interrupting rating. Standard BQ breakers are rated for 10kAIC, while BQH breakers like the BQ1B040H are rated for 22kAIC. Both share the same physical frame and bolt-on mounting style.
What wire sizes are accepted by the lugs on the BQ1B040H?
The included load side lugs accept 14 to 6 AWG copper conductors or 12 to 6 AWG aluminum conductors.
Is the Siemens BQ1B040H HACR rated?
Yes, this breaker is HACR rated, making it suitable for use with heating, air conditioning, and refrigeration equipment that requires this specific protection standard.
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Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 2 reviews.
Total 5 star reviews: 2 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
2 reviews
- YRYoan R.Verified BuyerReviewingSiemens BQ2B125H - 125A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/19/26Best prices and quality 🫶
Best prices and quality 🫶
- JDJames D.ReviewingSiemens BQ2B030H - 30A 2 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars11/13/17shop manager
thanks for the fast accurate service