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BQD320
The BQD320 from Siemens is a molded case circuit breaker (MCCB) designed for reliable protection in electrical systems. It features a thermal magnetic trip unit with fixed settings and supports both long-time and instantaneous trip functions. This unit is rated for an amperage of 20 amps and is designed for three-pole configurations.
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Technical specifications for BQD320
| Manufacturer | Siemens |
|---|---|
| Product Type | Molded Case Circuit Breaker (MCCB) |
| Product Line | BQD Series |
| Part Number | BQD320 |
| UPC | 783643277359 |
| Weight | 2.00 lbs (0.91 kg) |
| Trip Unit Type | Thermal Magnetic (Fixed) |
| Trip Functions | LI (Long-Time and Instantaneous) |
| Mounting Style | Bolt-On |
| Wire | Size Range #14 AWG – #6 AWG (Copper or Aluminum) |
| Amperage Rating | 20 Amps |
| Number of Poles | 3 Poles |
| System Voltage | 480Y/277 VAC |
| Interrupting Rating (at 480V) | Standard Break 14 kA (kAIC) |
| HID (High Intensity Discharge) | Yes |
| WD (Switching Duty) | Yes |
The Siemens BQD320 circuit breaker is a molded case type designed for efficient electrical protection in industrial applications. Featuring a trip unit based on thermal magnetic principles, this model ensures effective operation with fixed settings for both long-time and instantaneous trip functions. Operating at a maximum of 20 amps, this three-pole device is suitable for various configurations.
It can handle system voltages up to 480Y/277 VAC. The circuit breaker's wire compatibility ranges between #14 AWG to #6 AWG, allowing for connections with either copper or aluminum wiring. An essential feature of the BQD320 is its interrupting capacity, which stands at 14 kA (kAIC) at 480 volts, providing reliable trip protection during fault conditions.
This circuit breaker is not only capable of managing standard electrical loads but is also adept at handling high-intensity discharge (HID) applications. Additionally, it is suited for switching duty applications. The mounting style is bolt-on, facilitating straightforward installation and ensuring secure placement in panels or enclosures.
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