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| PartNumber | SW3821/UC | SW3821/U | SW3821/U-RO |
| Description | Rocker Switches DPST ON-OFF 30A SCREW TERMINALS | Rocker Switches DPST ON-OFF SCREW TERMINALS 30A W/UL | Rocker Switches DPST ON-OFF SCREW TERMINALS 30A W/UL |
| Manufacturer | NKK Switches | NKK Switches | - |
| Product Category | Rocker Switches | Rocker Switches | - |
| RoHS | Y | Y | - |
| Illuminated | Non-Illuminated | Non-Illuminated | - |
| Illumination Color | - | - | - |
| Lamp Type | - | - | - |
| Contact Form | DPST | DPST | - |
| Switch Function | ON - OFF | ON - OFF | - |
| Current Rating | 30 A | 30 A | - |
| Voltage Rating AC | 125 VAC | 250 VAC | - |
| Voltage Rating DC | 30 VDC | 125 VDC | - |
| Termination Style | Screw | Screw | - |
| Actuator | Concave | Rocker | - |
| Mounting Style | Panel Mount, Flange | Panel | - |
| Contact Plating | Nickel | Nickel | - |
| Contact Rating | 30 A at 125 VAC, 250 VAC, 30 VDC, 1 A at 125 VDC | 30 A at 125 VAC, 250 VAC, 30 VDC, 1 A at 125 VDC | - |
| Housing Material | Melamine Phenol | Melamine Phenol | - |
| Illumination | Non-Illuminated | - | - |
| Series | SW | SW | - |
| Brand | NKK Switches | NKK Switches | - |
| Actuator Style | Without Cap | Rocker | - |
| Maximum Operating Temperature | + 70 C | + 70 C | - |
| Minimum Operating Temperature | - 10 C | - 10 C | - |
| Product Type | Rocker Switches | Rocker Switches | - |
| Factory Pack Quantity | 1 | 1 | - |
| Subcategory | Switches | Switches | - |
| Unit Weight | 3.469124 oz | 3.476390 oz | - |