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The Schneider Electric QHB320 is a miniature circuit breaker designed for bolt-on installation. This unit operates at a rated voltage of 120/240 V AC and has a continuous current rating of 20 A, making it suitable for various applications within its rated limits.
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| Manufacturer | Schneider Electric |
|---|---|
| Product Type | Miniature Circuit Breaker (Bolt-On) |
| Product Line | QO |
| Part Number | QHB320 |
| UPC | 785901341666 |
| Weight | 1.00 lbs (0.45 kg) |
| Mounting Mode | Bolt-on pressure-plate |
| Continuous Current Rating | 100 % |
| Tightening Torque | ≈4.6 N·m |
| Certifications | UL, CSA, HACR |
| Ambient Temperature | Max 40 °C |
| Line Rated Current | 20 A |
| Rated Voltage | 120/240 V AC |
| Number of Poles | 3 |
| Interrupting Capacity | 65 kA |
| Breaking Capacity Code | G |
| Trip Unit Technology | Thermal-magnetic |
| Local Signaling | VisiTrip trip indicator |
The Schneider Electric QHB320 is classified as a bolt-on miniature circuit breaker. It features a robust mounting method utilizing a pressure-plate bolt-on design. The unit is rated to handle continuous currents up to 20 A. Its maximum operating temperature reaches 40 °C, allowing it to function effectively in various thermal conditions. This breaker possesses a compact size with dimensions of 2.91 x 2.24 x 2.99 inches, making it suitable for installations where space is a concern.
Constructed with an interrupting capacity of 65 kA, it is built to withstand high fault currents, enhancing its protective capabilities in critical applications. The thermal-magnetic technology employed in its trip unit ensures dependable operation by responding accurately to overloads and short circuits. For user convenience, the QHB320 is equipped with a VisiTrip indicator that provides a clear visual status, facilitating easy diagnostics and maintenance.
This circuit breaker complies with several important certifications, including UL, CSA, and HACR standards, underscoring its reliability and suitability for a wide range of electrical installations. Weighing just 0.84 lbs, it combines both efficiency and security in a single device, showcasing its design for reliable performance in demanding environments.