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Siemens BQD6340 Molded Case Circuit Breaker
- 40A
- 3 Pole
- Bolt-On
Siemens
BQD6340
Molded Case Circuit Breaker
Brand
Siemens
SKU
BQD6340
Quantity
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Siemens BQD6340 - 40A 3 Pole Molded Case Circuit Breaker
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Description
Constructed for demanding industrial environments, the Siemens BQD6340 delivers 40A of thermal-magnetic protection across three poles. It handles 600Y/347VAC and 125/250VDC voltages, making it highly versatile for modern commercial facilities. The bolt-on design ensures a stable connection within Siemens P1, P2, and P3 panelboards. This SENTRON family component supports reverse feed applications and provides a quick-make/quick-break mechanism for reliable operation.Specifications
| Brand | Siemens |
|---|---|
| Series | BQD6 |
| Amperage | 40A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 600Y/347VAC, 125/250VDC |
| Phase | 3 |
| AIC Rating | 10kA @ 600Y/347VAC, 14kA @ 125/250VDC |
| Frame Type | BQD |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 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 | Shunt Trip, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | None included |
| Standards | CSA C22.2 No. 5 |
| Approval | CSA |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated, Reverse Feed, Non-Interchangeable Trip, Quick-Make/Quick-Break, Trip-Free Mechanism |
Product FAQs
6 answersWhich panelboards are compatible with the BQD6340 circuit breaker?
This bolt-on breaker is designed for use in Siemens P1, P2, and P3 panelboards.
What wire sizes and materials are accepted by the lugs on this breaker?
The terminals accept 14 to 6 AWG copper wire, or 12 to 6 AWG aluminum wire.
Can the BQD6340 be used in direct current (DC) applications?
Yes, it carries a DC interrupting rating of 14kA at 125/250VDC, making it suitable for specific direct current systems.
What type of trip unit does this breaker use?
It utilizes a thermal-magnetic trip unit with fixed long-time and instantaneous (LI) trip functions to protect against overloads and short circuits.
Is the BQD6340 UL listed for use in the United States?
The BQD6 series is CSA certified for use in Canada and is not UL listed. It is specifically designed for 600/347VAC systems.
How does the BQD6340 differ from the standard BQD340?
The BQD6340 is rated for up to 600/347VAC and is CSA certified, whereas the standard BQD340 is rated for a maximum of 480Y/277VAC and is UL listed.
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