Manual

7. Double check work – Label conductors & SPDs - Energize Tower Light Controller
• Double check work – conrm that correct SPDs are installed to correct circuits.
• If in doubt – please contact APT Tech Support at [phone].
• Double check torque to 7 lb-in.
• Double check that ground terminals are tight to DIN Rail
• Upon verication that SPDs are installed correctly,
• Label each wire bundle for ease of future service, and label each SPD
• Energize circuits
• Individual SPD LED indicators should illuminate correctly.
• Install TWL cover.
Advanced Topics:
Two TWLs side by side, or one above or below the other. (Figure 8):
Mount appropriately. Ensure solid ground connection between two TWLs via 4” copper ground strap.
Remote SPD Diagnostic Indication:
Most APT SPDs are available with optional Dry Contacts for remote monitoring purposes. These indicate A-OK/Good or Failed
status. See individual SPD datasheets for more information. SPDs must be ordered with this option and cannot be eld retro-t.
When equipped, the SPD includes additional Form C Dry Contact wires. These wires may be connected to additional feed-
through terminal blocks for remote connection elsewhere.
[phone]
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[phone]
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Fax [phone]
UL is a registered trademark of Underwriters Laboratories, NEC and National Electrical Code are registered trademarks of National Fire Protection Association,
C62.41.1-2002, C62.41.2-2002, C62.45-2002, C62.72-2007 are registered trademarks of IEEE.
Advanced Protection Technologies
www.apttvss.com
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[e-mail]
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www.aptsurge.com
14550 58th Street North
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Clearwater, Florida 33760
5.29.12 #8615
European Authorized Representative
Obelis s.a.
Boulevard Général Wahis 53
1030 Brussels, BELGIUM
Tel: +(32) 2. 732.59.54
Fax: +(32) 2. 732.60.03
E-Mail: [e-mail]
Questions?? Need Assistance?? Contact APT at 800.237.4567 or [e-mail].
Figure 8
Page 9
4" copper ground strap
interconnects two TWLs
To Ground
Bonding Multiple TWLs Together