GE Industrial Solutions GE TR7000 Series - Manual (Page 12)

2020004602 (12/10) Page 12 of 17
INSTALLATION (CONT.):
3. POWER CONNECTIONS
Mechanical terminals are provided on the SPD for connection to the electrical power system.
These terminals will accommodate #14 to 2/0 AWG stranded copper conductors. The
minimum recommended wire size for the GE TR7000 SPD is # 6 AWG. See page 13 for
terminal location and identification.
4. WIRE ROUTING
The length of wiring to the SPD must be kept at a minimum for the best performance. Wire
lengths should be short, strait runs between the SPD and power source. Wiring impedance
can be further reduced by twisting the phase, neutral and ground conductors together and
routed in the same raceway or channel. Always avoid sharp bends when routing SPD
connecting conductors.
5. CIRCUIT BREAKER
A dedicated 60 A or lower rated circuit breaker (not included) is required to connect the SPD
to the power system.
6. REMOTE ALARM CONTACTS
Remote Alarm Monitoring Contacts are provided on all SPD model types covered by this
manual. If this type of monitoring is desired, refer to page 13 for the location and pin
configuration of these contacts. The contacts are dry, 1 form C type, rated 120 VAC, 1 A (30
VDC, 2A) maximum. Once the SPD has been energized and is operating as intended, the
alarm contacts will switch to “Normal Status”. The contacts will only change back to “Alarm
Status” if there is a failure within the SPD suppression circuitry, or if power has been
disconnected from the SPD. Allowing the Remote Alarm Contacts remain unconnected will
not affect the performance or integrity of the SPD.
7. SPD DISCONNECT SWITCH
A manually operated disconnect switch is provided as a standard feature on some models.
It can be used to disconnect the SPD for servicing.
8. PRE-ENERGIZATION CHECK
Once all of the pre-installation conditions have been met and the GE TR7000 SPD has been
installed, the SPD can now be energized. For SPD Operational Status, refer to Operation and
Maintenance Sections – pages 15 & 16.