| REL670 A41, Ver. 2.2 | Article: REL670 A41, Ver. 2.2 Line distance protection , Single breaker, 1/3 phase tripping, isolated or high impedance earthed systems | |
| REL670 A42, Ver. 2.2 | Article: REL670 A42, Ver. 2.2 Line distance protection , Single breaker, 1/3 phase tripping | |
| REL670 B42, Ver. 2.2 | Article: REL670 B42, Ver. 2.2 Line distance protection , Multi breaker, 1/3 phase tripping | |
| REL670 D42, Ver. 2.2 | Article: REL670 D42, Ver. 2.2 Line distance protection , Single breaker, 1/3 phase tripping, with PMU | |
| REL670 F00, Ver. 2.2 | Article: REL670 F00, Ver. 2.2 Line distance protection | |
