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BQ3B020 | Siemens Type BQ Low Voltage 3-Pole 20A Thermal Magnetic Molded Case Circuit Breaker
- Regular price
- $155.00
- Sale price
- $155.00
- Regular price
-
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Product Description P/N: BQ3B020
Description
The Siemens BQ3B020 is a three-pole molded case circuit breaker rated at 20 amps and 240 VAC for low-voltage distribution systems. It provides thermal magnetic protection with long-time and instantaneous trip functions for three-phase panel applications.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Siemens |
| Category | Circuit Breaker |
| Part Number | BQ3B020 |
| Subcategory | Molded Case Circuit Breaker |
| Type | Type BQ Low Voltage |
| Rated Voltage | 240 VAC |
| Rated Current | 20 A |
| Frequency | 60 Hz |
| Interrupt Rating | 10 kA |
| Protection Type | Thermal Magnetic |
| Trip Functions | Long-Time and Instantaneous (LI) |
| Number of Poles | 3 |
| Phase | Three-phase |
| Actuator Type | Handle |
| Connection Type | Bolt-On / Lug-In / Lug-Out |
| Wire Size | 14–10 AWG, 12–10 AWG |
| Mounting Type | Panel Mount |
| Operating Temperature | 40 °C |
| Dimensions (L×W×H) | 12.8 × 4.6 × 3.7 in |
| Color | Black |
Information About BQ3B020
The BQ3B020 is part of the Siemens Type BQ low-voltage molded case circuit breaker family used in panelboard and distribution applications. It features a compact molded case construction with an integrated handle actuator for manual operation and status indication. The breaker supports multiple termination styles, including bolt-on, lug-in, and lug-out, allowing flexible integration into various panel configurations. It is commonly applied in three-phase systems where standard interrupting capacity and dependable thermal magnetic protection are required.
Key Features
- Three-pole construction: Provides simultaneous protection and disconnection across all phases in three-phase electrical systems.
- 20 amp continuous current rating: Suitable for branch and feeder circuits with moderate load requirements.
- Thermal magnetic trip mechanism: Combines inverse-time overload protection with instantaneous short-circuit response.
- Long-time and instantaneous protection functions: Ensures consistent operation during sustained overcurrent and sudden fault events.
- Standard interrupting capacity: Rated at 10 kA at 240 VAC for typical commercial and industrial fault levels.
- Multiple connection options: Supports bolt-on, lug-in, and lug-out terminations for installation flexibility.
- Panel-mounted design with handle actuator: Allows secure mounting and straightforward manual operation within distribution panels.
The BQ3B020 delivers the reliability and precision required for protecting low-voltage three-phase distribution circuits in commercial and industrial electrical systems.
Description
The Siemens BQ3B020 is a three-pole molded case circuit breaker rated at 20 amps and 240 VAC for low-voltage distribution systems. It provides thermal magnetic protection with long-time and instantaneous trip functions for three-phase panel applications.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Siemens |
| Category | Circuit Breaker |
| Part Number | BQ3B020 |
| Subcategory | Molded Case Circuit Breaker |
| Type | Type BQ Low Voltage |
| Rated Voltage | 240 VAC |
| Rated Current | 20 A |
| Frequency | 60 Hz |
| Interrupt Rating | 10 kA |
| Protection Type | Thermal Magnetic |
| Trip Functions | Long-Time and Instantaneous (LI) |
| Number of Poles | 3 |
| Phase | Three-phase |
| Actuator Type | Handle |
| Connection Type | Bolt-On / Lug-In / Lug-Out |
| Wire Size | 14–10 AWG, 12–10 AWG |
| Mounting Type | Panel Mount |
| Operating Temperature | 40 °C |
| Dimensions (L×W×H) | 12.8 × 4.6 × 3.7 in |
| Color | Black |
Information About BQ3B020
The BQ3B020 is part of the Siemens Type BQ low-voltage molded case circuit breaker family used in panelboard and distribution applications. It features a compact molded case construction with an integrated handle actuator for manual operation and status indication. The breaker supports multiple termination styles, including bolt-on, lug-in, and lug-out, allowing flexible integration into various panel configurations. It is commonly applied in three-phase systems where standard interrupting capacity and dependable thermal magnetic protection are required.
Key Features
- Three-pole construction: Provides simultaneous protection and disconnection across all phases in three-phase electrical systems.
- 20 amp continuous current rating: Suitable for branch and feeder circuits with moderate load requirements.
- Thermal magnetic trip mechanism: Combines inverse-time overload protection with instantaneous short-circuit response.
- Long-time and instantaneous protection functions: Ensures consistent operation during sustained overcurrent and sudden fault events.
- Standard interrupting capacity: Rated at 10 kA at 240 VAC for typical commercial and industrial fault levels.
- Multiple connection options: Supports bolt-on, lug-in, and lug-out terminations for installation flexibility.
- Panel-mounted design with handle actuator: Allows secure mounting and straightforward manual operation within distribution panels.
The BQ3B020 delivers the reliability and precision required for protecting low-voltage three-phase distribution circuits in commercial and industrial electrical systems.