Compatible spares suitable for :-
Associated Electrical Industries Equipment (AEI), Alstom, GEC and Metropolitan Vickers On Load Tap Changers and Switchgear
| Tapchangers | |||||
| M21 & 2M21 | M31 & M32 | M51 & M52 | M54 & M56 | M102 & M103 | S21 & XCO |
| LBT & LBTC | 11LBT & LBTR | LCT | GEC Reactor | SD & MD | Type J |
| Switchgear | |||||
| JB424 | JB426 & JB427 | JB621 | JB821 | JB921 | V1R H1R |
| BVP | BVRP | KNA | OFA OFA11 | OD10 OD11 | SB28/X |