AC DC Power Protection zonedefender by nikeborome


80kA mains power surge protection for small distribution
panels, tower lights, equipment cabinets and confined spaces

!   AC or DC application

!   Straightforward and simple installation - wall
    or flush mounting

!   LED status indication via solid state
    diagnostics plus remote indication contacts

!   Thermal and short circuit fusing

!   UL 1449 2nd Edition Listed

!   10 year product warranty

The ZoneDefender Series of mains power         Suitable for AC or DC application,           Installation is simple - ZoneDefender
surge protection devices has been              ZoneDefender devices provide protection      devices can be easily ‘wall mounted’ via
specifically designed for interior lighting    for AC or DC power supplies with no          5mm diameter holes. Alternatively,
and small distribution panels. These           restriction to the amount of load current.   ZoneDefender units may be flush mounted
compact and durable devices offer cost         ZoneDefender DC versions are available       by way of an optional mounting plate which
effective, high capacity protection along      utilising SAD (Silicon Avalanche Diode)      should be specified at time of order
with application versatility, features which   technology in addition to the standard       placement.
make the Series the ultimate surge             MOVs. DC versions are also available with
protection solution.                           EMI filtering, should this be required.      The ZoneDefender Series is UL 1449
                                                                                            2nd Edition Listed and boasts an
ZoneDefender units, with a 80kA surge          Thermal fusing is incorporated into each     unrivalled 10 year ‘no questions asked’
handling capability per phase, provide         ZoneDefender as an additional safety         manufacturers product warranty. Zone-
protection between Line to Neutral, Line to    feature. Short circuit protection is also    Defender devices also exceed the
Earth, Line to Line and Neutral to Earth.      supplied, as standard, for added peace of    requirements of ANSI/IEEE C62.45 and
Utilising Metal Oxide Varistor (MOV)           mind.                                        ANSI/IEEE C62.41.
technology, the ZoneDefenders’ protection
circuits are highly reliable, dual-redundant   ZoneDefender offers an LED Status
varistor networks ensuring your site is        indication facility allowing each varistor
never unprotected. Fully automatic in          network to be continually monitored and
operation, ZoneDefender reacts immediately,    indicated by LEDs on the front panel of
clamping voltage surges without causing        the device. In addition, remote
undue leakage losses under normal              monitoring is enabled by the
operation. No operator intervention is         units’ remote indication
required, ZoneDefender resets auto-            contacts (normally
matically and is maintenance free.             closed, 2A rated).

                                                               AC & DC Power
All figures typical at 25°C (77°F) unless otherwise stated

Maximum surge current                                                 Model                   Working             Limiting voltage         Max. continuous           Phase types
    80kA (8/20µs)*                                                                            voltage           @ 3kA"     @ 10kA"         operating voltage
    *except ZoneDefender DC versions.                                                           (V)                 (V)          (V)            (Vac)
    See specification table for details.
Lines protected AC                                                   AC versions
                                                                     14400                    120                  435            730                140             Single phase 2 wire
    L-N, L-E, L-L, N-E
                                                                     14401                120/240 split*           435            730                140             Split phase 3 wire
Lines protected DC                                                   14402                  120/208                435            730                140             Three phase 4 wire WYE
    V+, V-                                                           14404                  277/480                890           1200                320             Three phase 4 wire WYE
Duty cycle perormance (8/20µs)   µ                                   14406                    480                 1600           2100                550             Three phase 3 wire Delta
    80,000A            1 impulse                                     14407                  220/380                790           1200                275             Three phase 4 wire WYE
    10,000A            >4,000 impulses                               14408                  240/415                890           1200                320             Three phase 4 wire WYE
       100A            infinite                                      14409                    220                  790           1200                275             Single phase 2 wire
Long duration current pulse (10/1,000µs) capability                  DC versions                                                          Max. surge current
    3,600A (tested)                                                  90819                        24V DC           140           340            36kA                          ---
                                                                     90841                        48V DC           280           504            53kA                          ---
Ambient temperature limits
                                                                     91029                        60V DC           325           575            65kA                          ---
    –40°C to +85°C (working)                                         DC/SAD versions
    –40°F to +185°F (working)                                        90798 (SM)                27V DC              103           218                19kA                      ---
Humidity                                                             90799 (SM)               - 48V DC             144           262                48kA                      ---
    95% RH (non-condensing)                                          DC/EMI versions
Enclosure                                                            90815 (E)                    12V DC           120           292                15kA                      ---
    IP66 (NEMA 1, 2, 3, 3R, 4, 4X, 12 and 13)                        90912 (E)                    24V DC           140           340                36kA                      ---
                                                                     90919 (E)                    12V DC           120           292                15kA                      ---
                                                                     90920 (E)                    24V DC           140           340                36kA                      ---
    3mm2 (12 AWG)
Mounting                                                            * Suitable for US use only " 8/20µs waveform - Tested as per ANSI/IEEE C62.45 and ANSI/IEEE C62.41
    Surface mount by 5mm diameter holes or                          KEY: SAD/EMI versions
                                                                    SM = SAD (Silicon Avalanche Diode) and MOV (Metal Oxide Varistor) versions
    flush mount via mounting plate                                  E = EMI filtering
    (Optional at time of order)                                     e.g. Model number 90798 (SM) has 1 x SAD per phase and 1 MOV per phase. Model number 90920 (E) has EMI filtering.
Remote contacts
    NC 250Vac, 5A rated
    Green LED on Protection present
    Green LED off Internal failure
    Three phase units
    1.64Kg (3.6 lbs)
    Split phase units                                                                                                                            Remote monitoring
    0.91Kg (2.0 lbs)                                                          Remote monitoring
    Single phase units                                                                                                                          L1
    0.86Kg (1.9 lbs)                                                           L
Dimensions                                                                                                                                      L3
    Three phase units                                                                                                                           N
    134.5mm x 134.5mm x 58.4mm                                                 E                                                                E
    (5.3” x 5.3” x 2.3”)
    Split phase units & single phase units                                         AC single phase connection                                    AC three phase connection
    114.3mm x 73.6mm x 63.5mm
    (4.5” x 2.9” x 2.5”)                                             Figure 1 AC connection details
AIC Rating
    Suitable for use on a circuit capable of
    delivering not more tha 100,000 rms
    symmetrical Amperes, 480V maximum
EMC compliance
    BS EN 60950: 1992
    BS EN 61000-6-2: 1999

To order specify -
                                                                                                            Remote monitoring
     Model number as per specification table
     Please not, 90919 and 90920 have a remote
                                                                                                                     DC POWER
     5mm LED                                                                                                          SUPPLY


                                                                                                                          DC connections

                                                                     Figure 2 DC connection details

Note: In accordance with our policy of continuous improvement, we
reserve the right to change the product’s specification without       Country                 Standard/Authority                Approved for                Product
                                                                      United States           UL 1449 Listed                    Mains power product         14400, 14401, 14402, 14404
                                                                                              Canada                            (C-UL US Listed)            14406, 14407, 14408, 14409

MTL Surge Technologies
Power Court, Luton, Bedfordshire, UK LU1 3JJ
                                                                                                                                                                                                903-090 04

Tel: +44 (0)1582 723633 Fax: +44 (0)1582 422283
E-mail: WWW:

A member of the MTL Instruments Group plc

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