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BQ3B040 | Siemens 40A 240V 3-Pole Type BQ Bolt-On Thermal-Magnetic Molded Case Breaker
- Regular price
- $122.00
- Sale price
- $122.00
- Regular price
-
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Product Description P/N: BQ3B040
Description
The Siemens BQ3B040 is a 40-amp, 240-volt molded case circuit breaker designed for commercial and industrial low-voltage distribution systems. This three-pole breaker uses a thermal-magnetic trip unit to provide reliable overload and short-circuit protection. Featuring bolt-on and lug-in/lug-out connection capability, the BQ3B040 supports flexible installation within panel-mounted applications.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Siemens |
| Category | Circuit Breaker |
| Part Number | BQ3B040 |
| Subcategory | Molded Case Circuit Breaker |
| Type | Type BQ Low Voltage |
| Voltage Rating | 240 VAC |
| Amperage Rating | 40 A |
| Phase | 3-Phase |
| Number of Poles | 3 |
| Trip Type | Thermal Magnetic |
| Interrupt Rating | 10 kA |
| Frequency Rating | 60 Hz |
| Actuator Type | Handle |
| Connection Type | Bolt-On / Lug-In / Lug-Out |
| Wire Size | 8–6 AWG (Copper), 8–4 AWG (Aluminum) |
| Mounting Type | Panel Mount |
| Dimensions | 12.7 in L × 4.7 in W × 3.7 in H |
| Color | Black |
| Temperature Rating | 40 °C |
| Application | Commercial and industrial circuit protection |
Information About BQ3B040
The BQ3B040 belongs to Siemens’ Type BQ Low Voltage series, engineered for dependable protection in three-phase electrical systems. Its molded case construction ensures durability, while the handle actuator allows straightforward manual operation and reset. The breaker accommodates multiple connection options, making it adaptable to various installation configurations in panel-mounted environments. With a 10 kA interrupt rating and thermal-magnetic trip characteristics, the unit provides responsive and balanced protection for medium-load circuits.
Key Features:
- Type BQ low-voltage design: Suitable for commercial and industrial power distribution.
- 40A, 240V rating: Intended for medium-load three-phase circuits.
- Thermal-magnetic trip unit: Provides overload and instantaneous short-circuit protection.
- Three-pole configuration: Supports balanced three-phase protection.
- Bolt-on/lug-in/lug-out connections: Offers flexible wiring and installation options.
- Panel-mounted construction: Integrates easily into electrical distribution panels.
- 10 kA interrupt rating: Capable of safely interrupting standard commercial fault currents.
- Handle actuator: Enables manual operation and reset for system control.
The BQ3B040 delivers the reliability and precision required for molded case circuit protection in demanding commercial and industrial systems.
Description
The Siemens BQ3B040 is a 40-amp, 240-volt molded case circuit breaker designed for commercial and industrial low-voltage distribution systems. This three-pole breaker uses a thermal-magnetic trip unit to provide reliable overload and short-circuit protection. Featuring bolt-on and lug-in/lug-out connection capability, the BQ3B040 supports flexible installation within panel-mounted applications.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Siemens |
| Category | Circuit Breaker |
| Part Number | BQ3B040 |
| Subcategory | Molded Case Circuit Breaker |
| Type | Type BQ Low Voltage |
| Voltage Rating | 240 VAC |
| Amperage Rating | 40 A |
| Phase | 3-Phase |
| Number of Poles | 3 |
| Trip Type | Thermal Magnetic |
| Interrupt Rating | 10 kA |
| Frequency Rating | 60 Hz |
| Actuator Type | Handle |
| Connection Type | Bolt-On / Lug-In / Lug-Out |
| Wire Size | 8–6 AWG (Copper), 8–4 AWG (Aluminum) |
| Mounting Type | Panel Mount |
| Dimensions | 12.7 in L × 4.7 in W × 3.7 in H |
| Color | Black |
| Temperature Rating | 40 °C |
| Application | Commercial and industrial circuit protection |
Information About BQ3B040
The BQ3B040 belongs to Siemens’ Type BQ Low Voltage series, engineered for dependable protection in three-phase electrical systems. Its molded case construction ensures durability, while the handle actuator allows straightforward manual operation and reset. The breaker accommodates multiple connection options, making it adaptable to various installation configurations in panel-mounted environments. With a 10 kA interrupt rating and thermal-magnetic trip characteristics, the unit provides responsive and balanced protection for medium-load circuits.
Key Features:
- Type BQ low-voltage design: Suitable for commercial and industrial power distribution.
- 40A, 240V rating: Intended for medium-load three-phase circuits.
- Thermal-magnetic trip unit: Provides overload and instantaneous short-circuit protection.
- Three-pole configuration: Supports balanced three-phase protection.
- Bolt-on/lug-in/lug-out connections: Offers flexible wiring and installation options.
- Panel-mounted construction: Integrates easily into electrical distribution panels.
- 10 kA interrupt rating: Capable of safely interrupting standard commercial fault currents.
- Handle actuator: Enables manual operation and reset for system control.
The BQ3B040 delivers the reliability and precision required for molded case circuit protection in demanding commercial and industrial systems.