MTL Instruments ZoneDefender PRO Data sheet

Technical Data

MTL Surge Protection

ZoneDefender Pro Series ­1-2 Phase

The most compact,
powerful, feature-rich AC
surge protector available

• 80kA, 100kA & 120kA surge-current

rating per phase

• Includes high-performance EMI/RFI

filtering

• LED status indication via solid state

diagnostics plus remote indication
contacts

• Built-in audible alarm

• Thermal and short circuit fusing

• Short circuit current rating: 200k AIC

• UL 1449 3rd Edition Listed

• 10 year product warranty

April 2015
EPS 901-104_ZD Pro 1-2 Phase Rev B

The ZoneDefender PRO Series is a versatile, high performance surge
protector designed for use in a wide variety of industrial, institutional
and commercial applications. The ZoneDefender PRO is the most
compact, powerful, feature-rich surge protector on the market today.
State-of-the-art circuitry protects equipment from high frequency
noise as well as from damaging electrical transients and high-energy
disturbances. In addition, the ZoneDefender PRO Series offers cost­effective high capacity protection along with application versatility;
features which make the Series the ultimate surge protection solution.

ZoneDefender PRO units provide protection between Line to
Neutral, Line to Ground, Line to Line and Neutral to Ground. Utilizing
Metal Oxide Varistor (MOV) technology, the ZoneDefender PRO’s
protection circuits are highly reliable, dual-redundant varistor networks
ensuring your site is never unprotected. Fully automatic in operation,
ZoneDefender PRO reacts immediately, clamping voltage surges
without causing undue leakage losses under normal operation.
No operator intervention is required, ZoneDefender PRO resets
automatically and is maintenance free.

Measurement Technology Limited,
Great Marlings, Butterfield, Luton
Beds, LU2 8DL, UK.
Tel: + 44 (0)1582 723633 Fax: + 44 (0)1582 422283
E-mail: [e-mail]
www.mtl-inst.com

© 2015 MTL
All Rights Reserved
Publication No. EPS 901-104_ZD Pro 1-2 Phase Rev B
April 2015

1

Suitable for all AC power applications, ZoneDefender PRO devices
provide protection for AC power supplies with no restriction to the
amount of load current.

Thermal fusing is incorporated into each ZoneDefender PRO as an
additional safety feature. Short circuit protection with 200kA AIC rating.
is also supplied, as standard, for added peace of mind.

ZoneDefender PRO offers an LED status indication allowing each
varistor network to be continually monitored and indicated by LEDs on
the front panel of the device. In addition, remote monitoring is enabled
by the unit’s remote indication contacts.

Installation is simple - the ZoneDefender PRO devices can be easily
surface or nipple mounted.

The ZoneDefender PRO Series is UL 1449 3rd Edition Listed
and boasts an unrivaled 10 year ‘no questions asked’ manufacturers
product warranty. ZoneDefender PRO devices also exceed the
requirements of ANSI/IEEE C62.45 and ANSI/IEEE C62.41.

MTL 901-104 ZD Pro 1-2 Phase

April 2015

SPECIFICATION

Maximum surge current (Imax)

80k A, 100kA & 120kA (8/20µs)

Maximum continuous operating voltage

120/240 versions - 140Vac/270Vac

Lines protected AC

L-N , L- G , L- L , N - G

Duty cycle performance (8/20µs)

Rated 1 impulse
10,000A >6,500 Impulses
100A infinite

Long duration current pulse (10/1,000µs)
capability

3,600A (tested)

Frequency range

47Hz to 63Hz

Ambient temperature limits

–4 0°F to +185°F working
–4 0°C to +85°C working

Humidity

95% RH (non-condensing)

DIMENSIONS

Enclosure

NEMA 1, 2, 3,3R,4, 4X 12 and 13 (IP66)

Terminals

#10 AWG (5mm

2

)

Mounting

Surface mount by 0. 21” (5mm) diameter
holes

Remote contacts

Form C (NC, NO, C) 60W DC, 120VA AC, 3A
max.

Indication

Green LED on
Red LED off

Green LED off
Red LED on

Green LED on
Red LED on

Power protection in all modes,

}

all phases

Protection fault (remote
indication alarm via

}

contacts & audible alarm)

Neutral/ground fault (voltage

}

potential)

Audible Alarm

90dB

EMI/RFI Attenuation

-75dB maximum 100kHz to 100MHz

Weight

2.5 kg (5.5 lbs) - Split Phase

1.6 kg (3.5 lbs) - Single phase

Dimensions

See Figure 1 and Figure 2

SCCR Rating

Suitable for use on a circuit capable of
delivering not more than 200,0 00 rms
symmetrical Amperes, 480V max

EMC compliance

BS EN 61326-1:2006
IE C 61 6 4 3 -11:20 11

Ratings in compliance with IEC 61643-1

Imax = 80k A, 100k A & 120kA
Iimp = 5kA (10/350)*

*All curr ent re sult s are pe r phase.

Figure 1.

Split phase dimensions

Figure 2.

Single phase dimensions

TO ORDER SPECIFY:

Model

80kA versions (V) (V) (V) (V) (kV) (V)

ZD16700 120 600 580 800 0.8 60 Single phase 2-wire
ZD16701 120/240 600 580 800 0.8 60 Split phase 3-wire
ZD16709 240 1200 890 1200 1. 2 75 Single phase 2-wire TT
ZD16900 120TT 600/1200 580/890 800/1300 0.8/1.3 60/75 Single phase 2-wire TT
ZD16901 120/240TT 600/1200 580/890 800/1300 0.8/1.3 60/75 Split phase 3-wire TT
100kA versions
ZD16730 120 600 580 800 0.8 60 Single phase 2-wire
ZD16731 120/240 600 580 800 0.8 60 Split phase 3-wire
ZD16739 240 1200 890 1200 1. 2 75 Single phase 2-wire TT
ZD16930 120TT 600/1200 580/890 800/1300 0.8/1.3 60/75 Single phase 2-wire TT
ZD16931 120/240TT 600/1200 580/890 800/1300 0.8/1.3 60/75 Split phase 3-wire TT
120kA versions
ZD16740 120 600 580 800 0.8 60 Single phase 2-wire
ZD16741 120/240 600 580 800 0.8 60 Split phase 3-wire
ZD16749 240 1200 890 1200 1. 2 75 Single phase 2-wire TT
ZD16940 120TT 600/1200 580/890 800/1300 0.8/1.3 60/75 Single phase 2-wire TT
ZD16941 120/240TT 600/1200 580/890 800/1300 0.8/1.3 60/75 Split phase 3-wire TT

Workin g

voltage

UL1 4 49 V PR

3rd Edition

Limiting voltage

@ 3kA @10kA (In)

U

p

Ringwave

@200A

Phase types

APPROVALS:

Coun try Standard/Authority Approved f or Product

USA
Canada

UL 1449 3rd Edi tion Li sted AC power p roduct ZD1670 0, ZD 16701, Z D16709, ZD169 00, Z D169 01, ZD16 730, ZD16 731, ZD 1673 9,

Measurement Technology Limited,
Great Marlings, Butterfield, Luton
Beds, LU2 8DL, UK.
Tel: + 44 (0)1582 723633 Fax: + 44 (0)1582 422283
E-mail: [e-mail]
www.mtl-inst.com

© 2015 MTL
All Rights Reserved
Publication No. EPS 901-104_ZD Pro 1-2 Phase Rev B
April 2015

ZD16930, ZD16931, ZD16740, ZD16741, ZD1674 9, ZD1694 0, ZD169 41

EUROPE (EMEA):

[phone]
[e-mail]

THE AMERICAS:

[phone]
[e-mail]

ASIA-PACIFIC:

[phone]
[e-mail]

The given d ata is only intended as a p roduct
descrip tion and sho uld not be reg arded as a leg al
warrant y of properties or gu arantee. In th e interest
of further technical developments, we reserve the
right to make de sign changes.