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QHB330
The QHB330 from Schneider Electric is a bolt-on miniature circuit breaker designed for reliable circuit protection. It features a trip unit based on thermal-magnetic technology and offers a continuous current rating of 30 A, suitable for 120/240 V AC applications.
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Technical specifications for QHB330
| Manufacturer | Schneider Electric |
|---|---|
| Product Type | Miniature Circuit Breaker (Bolt‑On) |
| Product Line | QO |
| Part Number | QHB330 |
| UPC | 785901341673 |
| Weight | 1.00 lbs (0.45 kg) |
| Local Signaling | VisiTrip trip indicator |
| 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 | 30 A |
| Rated Voltage | 120/240 V AC (50/60 Hz) |
| Number of Poles | 3 |
| Interrupting Capacity | 65 kA |
| Breaking Capacity Code | G |
| Trip Unit Technology | Thermal‑magnetic |
The Schneider Electric QHB330 is a compact bolt-on miniature circuit breaker designed for effective circuit protection. It operates at a maximum line rated current of 30 A and offers reliable performance at rated voltages of 120/240 V AC, supporting both 50 and 60 Hz applications. A notable feature is the thermal-magnetic trip unit technology, which enhances the device’s reliability by offering protection against both overloads and short circuits.
This circuit breaker has an interrupting capacity of 65 kA, ensuring it can handle significant surge currents without failing. The breaker includes a VisiTrip trip indicator, which provides clear local signaling in case of a trip event, allowing for swift identification and resolution of issues.
Dimensions for the QHB330 are measured at 2.91 inches in height, 2.24 inches in width, and 2.99 inches in depth. The mounting approach consists of a secure bolt-on pressure-plate mechanism, complemented by a tightening torque of approximately 4.6 N·m for solid installation. It is certified by UL, CSA, and HACR standards, ensuring compliance with crucial safety regulations. Weighing in at 0.84 lb, the QHB330 is lightweight yet robust, capable of operating effectively in environments with maximum ambient temperatures up to 40 °C. This circuit breaker is ideal for applications requiring both compact size and high reliability.
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