点击图片查看大图"WI系列"保护继电器无需供电电源。电流保护功能齐全。配合适当的电流互感器、低功率跳闸线圈及保护装置，可大大节省成本。
| Woodward SEG里面客户常搜的型号有： |
| DB1 |
| PCL1-IULA |
| PCL1-IULF |
| PCL1-IULU |
| PCL1-IULFU |
| PCL1-IUHA |
| PCL1-IUHF |
| PCL1-IUHU |
| PCL1-IUHFU |
| PCM1-M-IULA |
| PCM1-M-IUHA |
| PCM1-G-IUL-IA |
| PCM1-G-IUH-IA |
| PCM1-G-IUH-EA |
| PCM1-GIULF |
| PCM1-GIULU |
| PCM1-GIULFU |
| PCM1-GIUHF |
| PCM1-GIUHU |
| PCM1-GIUHFU |
| PCM1-MIULF |
| PCM1-MIULU |
| PCM1-MIULFU |
| PCM1-MIUHF |
| PCM1-MIUHU |
| PCM1-MIUHFU |
| EM1-D-DR |
| SG1-3 |
| FL-LAB-01 |
| FL-LAB-02 |
| FL-CON-01 |
| FL-CON-02 |
| FL-CON-03 |
| T-CON-01 |
| T-CON-02 |
| XD1-TSP |
| XD1-TSAT |
| XD1-TSPSAT |
| XD1-G |
| XD1-GSP |
| XD1-GSAT |
| XD1-GSPSAT |
| XD1-L |
| XD1-LSP |
| XD1-LSAT |
| XD1-LSPSAT |
| I-ADAP |
| U-ADAP |
| BU1-AC- (110 / 230 / 400) |
| BUA1- (110 / 230 / 400) |
| BU1-DC2- (12 / 24) |
| BF1- (110 / 230 / 400) |
| BA1- (110 / 230 / 400) |
| BN1-400 |
| BP1-R- (110 / 230) |
| BZ1-G- (12 / 24) |
| BZ1-P- (12 / 24) |
| BV1- (110 / 230 / 400) |
| WI line series |
| WIP1-1I1E1 |
| WIP1-2I1E1 |
| WIP1-3I1E1-M |
| WIP1-PS |
| WIP1-BAT1 |
| WIP1-BAT2 |
| WIC1-1PE |
| WIC1-2PE |
| WIC1-3PE |
| WIC1-PC2 |
| WIC1-HP |
| WIC1-W2AS1 (16-56A CT) |
| WIC1-WE2AS1 (16-56A CT) |
| WIC1-W3AS1 (32-112A CT) |
| WIC1-W4AS1 (64-224A CT) |
| WIC1-W5AS1 (128-448A CT) |
| WIM1-C-1-EL-1 |
| WIM1-C-1-RM-1 |
| WIM1-S-1-EL-1 |
| WIM1-S-1-RM-1 |
| WIM1-C-5-EL-1 |
| WIM1-C-5-RM-1 |
| WIM1-S-5-EL-1 |
| WIM1-S-5-RM-1 |
| WIM1-H1-EL2 |
| WI1-SZ2 |
| WI1-SZ4 |
| WI1-SZ5 |
| DU2-6- (12 / 24) |
| DX1- (12 / 24) |
| ED2-8- (12 / 24) |
| NB2-1-8 |
| NC3-1-8 |
| NC3-2-8 |
| NC3-1-16 |
| NC3-2-16 |
| NC3-3-16 |
| FC1-8-24 (new) |