| REL670 A31, Ver. 2.0 | Article: REL670 A31, Ver. 2.0 Line distance protection , Single breaker, 3 phase tripping | |
| REL670 A21, Ver. 2.0 | Article: REL670 A21, Ver. 2.0 Line distance protection , Isolated or high impedance earthed systems | |
| REL670 A32, Ver. 2.0 | Article: REL670 A32, Ver. 2.0 Line distance protection , Single breaker, 1 phase tripping | |
| REL670 B31, Ver. 2.0 | Article: REL670 B31, Ver. 2.0 Line distance protection , Multi breaker, 3 phase tripping | |
| REL670 B32, Ver. 2.0 | Article: REL670 B32, Ver. 2.0 Line distance protection , Multi breaker, 1 phase tripping | |
| REL670 F00, Ver. 2.0 | Article: REL670 F00, Ver. 2.0 Line distance protection | |
