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: [email protected]
Confirm XO N-G Bonding at Upstream Transformer
Do Not Hi-Pot Test
Resulting Damage is not Covered Under Warranty
WARNING
V
WARNING
!
VERIFY THAT ALL POWER CIRCUITS ARE DE-ENERGIZED BEFORE
MAKING CONNECTIONS
All electrical connections should be performed by a qualified (licensed) electrician or
technician. All wiring must comply with the National Electrical Code (NEC
®
) and applicable
local codes.
Normally Closed (suggested):
Use Gray and Red
Normally Open:
Use Gray and Blue
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USA T 978 462 6662 F 978 462 0181 [email protected]
CANADA T 416 252 9371 F 416 252 6572 [email protected]
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Connecting Optional Form C Dry Contact &
Audible Alarm
Three (3) 3’ (~1m) 18 AWG wires are included through
the nipple with this option. (These are smaller than
the 10 AWG SPD conductors.) Gray is Common, Blue
is Normally Open and Blue is Normally Closed. (We
generally recommend the Normally Closed configuration
because it detects disconnected or failed wiring
whereas Normally Open does not.) If the Dry Contacts
are not utilized, insulate lead ends, coil and secure.
Audible Alarm will still function correctly. The contact
is rated 250V, 5A. Higher energy applications require
supplemental relaying. This option monitors suppression
element condition and is not intended for use as phase
loss or phase detection monitoring.
NORMAL OPERATION
Green LED Indicator:
LED indicator illuminates when SPD is energized and
operating correctly. Every suppression component
is connected via logic to the green LED. Should any
suppression component fail, green LED will extinguish.
Form C Dry Contact and Audible Alarm Option
Dry Contact will change state and Audible Alarm will sound
upon any suppression component failure. The Audible
Alarm will be silenced by removing power to the SPD.
Maintenance:
SPDs require minimal maintenance. Periodic inspection
of diagnostic indicator is suggested to ensure proper
operation.
Troubleshooting & Service
Please contact Mersen Technical Services for any service
related issues.
#9009
Blue
Gray
Red
Dry Contact
Leads
(18 AWG)
Power Leads
(10AWG)
Figure 6
