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BQD330
Siemens’ BQD330 is a robust molded case circuit breaker designed for effective protection in electrical systems. It features a thermal magnetic trip unit that combines long-time overload and instantaneous short circuit functions for reliable operation.
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Technical specifications for BQD330
| Manufacturer | Siemens |
|---|---|
| Product Type | Molded Case Circuit Breaker (MCCB) |
| Product Line | BQD Series |
| Part Number | BQD330 |
| UPC | 783643277373 |
| Weight | 2.00 lbs (0.91 kg) |
| Trip Unit Type | Thermal Magnetic (Fixed) |
| Trip Functions | LI (Long-Time Overload and Instantaneous Short Circuit) |
| Mounting Style | Bolt-On |
| Wire Size | Range #14 AWG – #6 AWG (Copper or Aluminum) |
| Amperage Rating | 30 Amps |
| Number of Poles | 3 Poles |
| System Voltage | 480Y/277 VAC |
| Interrupting Rating | 14 kA (kAIC) at 480 volts; Standard Break |
| Lug Configuration | Load Side typically factory-installed |
| Max. Ambient Relative Humidity | 80% (Non-Condensing) |
The Siemens BQD330 represents a high-quality molded case circuit breaker designed for circuit protection across various applications. This unit employs a fixed thermal magnetic trip mechanism that offers dual protection through long-time overload and instantaneous short-circuit features. Rated for 30 Amps, the BQD330 is built to handle demands in electrical systems with a three-pole configuration, enhancing its capability for multi-phase setups.
With a system voltage capability of 480Y/277 VAC, this breaker is suitable for commercial and industrial operations. In terms of performance, the BQD330 is capable of interrupting up to 14 kA (kAIC) at 480 volts, providing significant protection against fault currents. Required cabling can range from #14 AWG to #6 AWG, accommodating both copper and aluminum wire types, ensuring versatility in installation.
The breaker is designed for bolt-on mounting, simplifying installation into electrical panels. It is also equipped with factory-installed lugs on the load side, facilitating quick and accurate connections. Furthermore, the BQD330 operates effectively in environments with a maximum ambient relative humidity of 80% without condensation, making it reliable in various conditions. This circuit breaker is an essential component for safeguarding electrical systems while maintaining operational integrity.
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