Class 218 HIGH-VOLTAGE SWITCHES WITH ARC PREVENTING OR EXTINGUISHING DEVICES
| Printable Version[PDF] See notes regarding proper use of US-to-IPC Concordances. | ||
| U.S. Subclass | IPC8 Subclass | IPC8 Group |
|---|---|---|
| 1 | H 01 H | 9 / 30 |
| 1 | H 01 H | 33 / 00 |
| 2 - 7 | H 01 H | 9 / 40 |
| 2 - 7 | H 01 H | 33 / 14 |
| 8 - 21 | H 01 H | 9 / 38 |
| 8 - 21 | H 01 H | 33 / 12 |
| 8 - 21 | H 01 H | 33 / 66 |
| 22 - 42 | H 01 H | 9 / 44 |
| 22 - 42 | H 01 H | 33 / 18 |
| 43 - 56 | H 01 H | 33 / 00 |
| 57 - 67 | H 01 H | 33 / 88 |
| 68 - 80 | H 01 H | 33 / 70 |
| 81 - 88 | H 01 H | 9 / 30 |
| 81 - 88 | H 01 H | 33 / 04 |
| 89 | H 01 H | 9 / 32 |
| 89 | H 01 H | 33 / 06 |
| 89 | H 01 H | 33 / 60 |
| 90 | H 01 H | 33 / 76 |
| 91 - 116 | H 01 H | 33 / 00 |
| 117 | H 01 H | 9 / 32 |
| 117 | H 01 H | 33 / 06 |
| 117 | H 01 H | 33 / 60 |
| 118 - 142 | H 01 H | 33 / 66 |
| 143 - 145 | H 01 H | 9 / 42 |
| 143 - 145 | H 01 H | 33 / 16 |
| 146 - 147 | H 01 H | 9 / 30 |
| 146 - 147 | H 01 H | 33 / 02 |
| 146 - 147 | H 01 H | 33 / 08 |
| 148 | H 01 H | 33 / 20 |
| 149 - 151 | H 01 H | 9 / 30 |
| 149 - 151 | H 01 H | 33 / 00 |
| 152 - 158 | H 01 H | 33 / 02 |
| 152 - 153 | H 01 H | 33 / 28 |
| 154 | H 01 H | 3 / 00 |
| 154 | H 01 H | 33 / 34 |
| 155 - 158 | H 01 H | 33 / 08 |