GE GEK 106168E - Manual (Page 43)

6. ACCEPTANCE TESTS
36 DBF Breaker Failure Protection GEK-106168E
8. Check that after 3P NO I TIMER T3 (2s), the following contacts are closed:
A12-B12 C1-D1
C4-D4 C6-D6
C5-D5 C7-D7
9. If the relay is provided with an expansion board, check that also the following contacts are closed:
E1-F1 E2-F2
E3-F3 E4-F4
E5-F5 E6-F6