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| PartNumber | SCH628ANR | SCH628AR | SCH628ANPR |
| Description | Audio Indicators & Alerts CONSTANT, 6-28V LOUD, CLASS I DIV II | Audio Indicators & Alerts CONSTANT, 6-28V MED, CLASS I DIV II | Audio Indicators & Alerts FAST PULSE, 6-28V LOUD, CLASS I DIV II |
| Manufacturer | Mallory Sonalert | Mallory Sonalert | Mallory Sonalert Products Inc. |
| Product Category | Audio Indicators & Alerts | Audio Indicators & Alerts | Buzzers |
| RoHS | Y | Y | - |
| Voltage Rating | 28 V | 28 V | - |
| Current Rating | 30 mA | 23 mA | - |
| IP Rating | - | - | - |
| Dimensions | 1.69 in L x 1.69 in W x 1.41 in H | 1.69 in L x 1.69 in W x 1.41 in H | - |
| Height | 1.41 in | 1.41 in | - |
| Length | 1.69 in | 1.69 in | - |
| Series | SCH | SCH | SCH |
| Width | 1.69 in | 1.69 in | - |
| Brand | Mallory Sonalert | Mallory Sonalert | - |
| Product Type | Audio Indicators & Alerts | Audio Indicators & Alerts | - |
| Factory Pack Quantity | 1 | 1 | - |
| Subcategory | Audio Devices | Audio Devices | - |
| Unit Weight | 1.587328 oz | 1.587328 oz | - |
| Product | - | Buzzers | - |
| Sound Pressure Level | - | 80 dBA | 88dB @ 6V, 61cm |
| Tone | - | Continuous | - |
| Frequency | - | 2.9 kHz | 2.9kHz |
| Diameter | - | 42.85 mm | - |
| Mounting | - | Flush | - |
| Packaging | - | - | Bulk |
| Termination | - | - | Quick Connect Tab - 0.250" (6.35mm) |
| Driver Circuitry | - | - | Indicator, Internally Driven |
| Technology | - | - | Piezo |
| Input Type | - | - | AC |
| Voltage Rated | - | - | - |
| Voltage Range | - | - | 6 ~ 28V |
| Operating Mode | - | - | Pulse, Fast |
| Current Supply | - | - | 4 ~ 30mA |
| Operating Temperature | - | - | -30°C ~ 65°C |
| Washable | - | - | No |
| Port Location | - | - | Top |
| Mounting Type | - | - | Panel Mount |
| Size Dimension | - | - | 42.9mm Dia x 32.6mm H |