TRENDnet BE1-87G - Manual (Page 22)

BE1-87B - Installation 4-5
WARNING
Relays manufactured prior to July 22, 1991 (EIA date code symbol 9129 and previous)
do NOT have case jumpers between terminals 7 and 8 (single phase units). This also
applies to three phase relays terminals 7 and 8, terminals 13 and 14, and terminals 17
and 18. Exercise CAUTION when grounding or testing current transformer circuits
connected to these terminals.
NOTE
Be sure the relay case is hard-wired to earth ground with no smaller than 12 AWG copper
wire attached to the ground terminal on the rear of the relay case. When the relay is
configured in a system with other protective devices, it is recommended to use a
separate lead to the ground bus from each relay.
Figure 4-7. S1 Case And Reactor, Outline Dimensions (Semi-Flush Mounting)
CONNECTIONS
Incorrect wiring may result in damage to the relay. Be sure to check model and style number against the
options listed in the Style Number Identification Chart before connecting and energizing a particular relay.
Except as noted above, connections should be made with minimum wire size of 14 AWG. Typical dc control
connections are shown in Figure 4-8. Sensing input connections are shown in Figures 4-9 and 4-10.
Terminals 7, 13, and 17 are provided for convenience and to insure compatibility with earlier versions of the
relay. Figures 4-11 and 4-12 are typical internal connection diagrams.