CONGRATULATIONS! YOU HAVE JUST PURCHASED THE BEST SURGE
Three Phase WYE
B
B
B
W
N
ØA
ØB
ØC
G
G
# 22AWG
See Remote Status
Indication Section
on back page.
L
1
L
2
N
G
G
Split Pha se
B
B
W
# 22AWG
See Remote Status
Indication Section
on back page.
PROTECTION IN THE INDUSTRY!
Adhering to these instructions guarantees maximum performance of this Protection
device.
Introduction
This document explains how to install the ZoneDefender PRO Series of AC Panel
Surge Protective Devices.
Installation Instructions
Mounting
The suppressor should be mounted as close to the panel and wire connections as possible. The shortest and most direct wire connections will ensure best performance. Use
the four mounting holes located on the tabs to secure unit to a solid fl at surface. The
type of hardware used to mount the Zone Defender PRO will depend on the mounting
structure and are not included with the unit.
AC Power Connections
Connection Diagrams
Proper wiring techniques associated with the National Electrical Codes should be
followed. The use of a 30 AMP minimum circuit breaker is required in the event the
connection wires short or the Zone Defender PRO needs servicing.
The ¾” nipple on the Zone Defender PRO can be inserted directly into an existing
panel knockout to ease the wire connections between the panel and the Zone Defender
PRO. If the mounting location prevents this type of installation proper conduit fi ttings
should be used in order to protect the connecting wires.
When making the connections, cut each conductor as short as possible. A void large
loops and sharp bends in the wire. Bind all connecting wires tightly together throughout
the wire run from the Zone Defender PRO to the panel. Connect the BLACK wires
to the phase conductors, connect the WHITE wire to the neutral bus and connect the
GREEN wire to the ground bus.
INCORRECT INSTALLATION WILL IMPAIR THE EFFECTIVENESS
OF AC PANEL SURGE PROTECTORS. Particularly important is the length and
routing of the connecting leads.
Note: Circuit breaker (30A - 60A) is MANDATORY.
Status Indicator
NOTE: ALL WIRES MUST BE CONNECTED AND POWER
APPLIED BEFORE THE LED WILL ILLUMINATE.
The ZoneDefender PRO Series of suppressors has comprehensive, solid state, continu-
ous visual status monitoring present in each unit. The GREEN indicator light will go
out in the event the suppressor capability is exceeded or if there is an internal safety
component failure. If the light goes out, call the factory for replacement instructions.
Diagnostic Indication
The Zone Defender PRO provides a patent pending diagnostic circuitry that monitors connected power and protection status. The following is a description of each
indication.
INSTALLATION
GREEN (ON)
RED (OFF)
GREEN (OFF)
RED (ON)
Remote Status Indication
The Zone Defender PRO provides for remote monitoring via a (normally open) or
(normally closed) circuit. The circuit is rated for 3amps maximum at 60W (DC supply) or
120VA (AC supply).
and the normally closed wire is RED.
Maintenance
At intervals not exceeding two months, check:
1. Status indication light
2. Conditions of connecting cables
NOTE: No customer serviceable parts inside. Opening unit WILL void
Warranty.
AC POWER is present and protection is provided.
AC POWER is present but the Zone Defender PRO needs replaced.
In addition, an audible alarm will sound and the remote indication
will change states.
The common wire is YELLOW, the normally open wire is BLUE
INSTRUCTIONS/
USER MANUAL
ZONEDEFENDER PRO
SERIES
AC Panel Transient Voltage Surge Suppressor
For more information please contact your local MTL offi ce
or visit our web site at www.mtlsurge.com
The Americas: +1 800 835 7075
UK: +44 (0)1582 723633
Singapore: +65 6 487 7887
801654 Rev E 01/13/09
The Netherlands: +31 (0)481 450250
Italy: +39 (0)2 6180 2011
Australia: +61 (0)8 9455 2994
India: +91 (0)44 450 1660
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