ERICO TDS-MOVTEC Surge Diverters User Manual

SURGE DIVERTERS

INSTALLATION INSTRUCTIONS

Includes MPM Movtec Protection
Module Instructions

www.erico.com

Handbook No:

Handbook No:

HB-HBCR-111

HB-HBCR-111

© Copyright

© Copyright

ISSUE: 3 April 2003

INSIDE FRONT COVER

(Blank)

CONTENTS

Page

1. Warnings ... ... ... ... ... ... ... ... ... ... ... 4

2. Introduction ... ... ... ... ... ... ... ... ... ... 5

3. Protection Concepts .. ... ... ... ... ... ... ... 7

4. Mounting and Cautions ... ... ... ... ... ... 9

5. Voltage Ratings .. ... ... ... ... ... ... ... ... 10

6. Protection Mode .. ... ... ... ... ... ... ... ... 13

7. Connection Method ... ... ... ... ... ... ... 15

8. RCD, ELCB ... ... ... ... ... ... ... ... ... ... 20

Page

9. Isolation and Fusing ... ... ... ... ... ... ... 20

10. Status Indication and Alarms

... ... ... 22

11. MPM, Movtec Protection Module ... ... 24

12. Maintenance and Testing .. ... ... ... ... 27

13. Extended Warranty ... ... ... ... ... ... ... 28

14. Six Point Plan ... ... ... ... ... ... ... ... 29

15. Use of Mimic Panels ... ... ... ... ... ... 30

PAGE 3

GLOBAL LIGHTNING TECHNOLOGIES

1. WARNINGS

• Prior to installation ensure that the
Movtec is of the correct voltage and
frequency, and is the type recommended for
the local power distribution, and for the
equipment being protected.

• Hazardous voltages may exist internally to
the units. The units should be installed
(and replaced) only by qualified personnel
in accordance with all relevant Electricity
Safety Standards.

• Do not power MPMs and three phase
connected Movtecs (Ph-N) without the
upstream neutral connected. Failure to do
so may damage the Movtecs and/or the
load.

• Where the MPMs/Movtecs are connected
to an earth, this must be a low impedance
earth (<10 Ω) for correct operation.

PAGE 4

• X1-X4 connections may be at phase voltages
dependant upon connection method.

• If connecting to the Movtec alarm outputs
do not exceed the maximum permissible
ratings as damage may occur.

• Movtecs must be installed in an
enclosure or panel, ensure this does not
cause their environmental ratings to be
exceeded.

• Do not “Megger” or “Flash Test” circuits
with Movtecs installed.

• The DINLINE Surge Counter (DSC) should
not be used in voltage sensing mode with
TDS-Movtecs. Voltage sensing mode is not
compatible with TDS-Movtecs.

• All instructions must be followed to ensure
correct and safe operation.

• Diagrams are illustrative only, and should
not be relied on in isolation.

DINLINE INSTALLATION INSTRUCTIONS

2. INTRODUCTION

Movtecs are designed to protect mains
powered equipment from the damaging effects
of lightning and transients. They are ideal for
point-of-entry shunt protection applications
where robustness and high surge ratings are
required.

The Movtec family is designed to suit many
distribution systems including TN-C, TN-S,
TN-C-S and TT. They can be selected for use
with distribution systems with nominal
voltages of 110/120V, 220/240V and 277Vrms
at frequencies of 50/60 Hz.

The TDS Technology (Transient
Discriminating Suppressor) units are
specifically designed for distribution systems
that may feature poor voltage regulation
where the actual supply voltage may exceed
the nominal ratings for extended periods.

This Installation Manual details the preferred
procedure for the installation of the family of
Critec Movtec™ Surge Diverters.

The Critec Movtec family includes:

• Critec Movtec, Single Mode, enhanced
MOV technology units eg. (MT275V-135K-A)

• Critec TDS-Movtec, Single Mode, TDS
technology unit featuring high over-voltage
withstand for added robustness (TDS-MT-

277)

• Critec TDS-Movtec, Three Mode, TDS
technology unit featuring high over-voltage
withstand for added robustness (TDS-MTU)

TDS-Movtec units are coloured blue for easy
identification, while enhanced MOV
technology units are coloured red.

In this manual, reference to “ Movtec” also
includes “TDS-Movtec”.

PAGE 5

GLOBAL LIGHTNING TECHNOLOGIES

This manual also details the installation of
the MPM (Movtec Protection Module). The
MPM is a supplied enclosure with three
Movtecs and a high energy neutral to earth
protection device for three phase protection.
The MPM is often used where Movtecs can not
be fitted in an existing switchboard and must
be mounted externally. Therefore the Movtec
installation instructions are also applicable to
the MPM. Section 11 gives details which are
specific to the MPM.

Two standard MPMs are available:

• Critec TDS-MPM, Single Mode, TDS
Technology unit (uses 3 x TDS-MT-277)

• Critec MPM-275V, Single Mode, Enhanced
MOV Technology unit (uses 3 x MT275V­135K-A)

PAGE 6

Alarm Contact
Terminals

T2
Terminal

X3-X4 For A-N/A/N-E
configeration option

Status
Indicator

X1-X2 For connection
to optional Mimic Panel
(Ref. Section 15)

SINGLE MODE

MOVTEC

T1
Terminal

DINLINE INSTALLATION INSTRUCTIONS

Alarm Contact
Terminals

Phase
Terminal

Status
Indicator

Earth Terminal

THREE MODE

MOVTEC

Neutral
Terminal

3. PROTECTION CONCEPTS

To optimise effectiveness of installed
protection a concept of “Unprotected” and
“Protected” wiring should be followed.Wiring
from the transient source to the Movtec
should be considered “Unprotected” and kept
remote from all other wiring (approximately
300mm) where possible. Wiring on the
equipment side of the Movtec should be
considered “Protected”.

The separation of “Protected” from
“Unprotected” wiring is recommended in order
to minimise the risk of transients conducted
on “Unprotected” wiring cross coupling on to
“Protected” circuits, thus compromising the
level of protection available from the Movtec.

PAGE 7

PAGE 8

GLOBAL LIGHTNING TECHNOLOGIES

Keep other cables and
equipment away
from this area.

Unprotected zone Protected zone

DINLINE INSTALLATION INSTRUCTIONS

4. MOUNTING & CAUTIONS

The performance of surge diverters can be
dramatically affected by the method of
connection (refer section 7). Where possible
select a mounting method that allows the
Movtec to be connected in the “Preferred
Connection Method”.

Failure of a Movtec under severe AC over­voltage, such as 11kV on 240V mains, can
result in the generation of significant heat.
Consideration should be given to ensure that
Movtecs are not installed in close proximity to
combustible materials.

Units must be installed in an enclosure or
panel to provide the appropriate degree of
electrical and environmental protection.

Only use enclosures that:

• Do not cause the Movtec temperature to
exceed 60 deg C

• Provide adequate electrical and safety
protection

• Prevent the ingress of moisture and water

• Allow Movtec Status Indication to be
inspected

PAGE 9

GLOBAL LIGHTNING TECHNOLOGIES

5 VOLTAGE RATINGS

The TDS (Transient Discriminating
Suppressor) technology has been specifically
developed to cater for abnormal over-voltage
conditions that may occur on sites with poor
voltage regulation, or due to wiring or
distribution faults. The TDS units feature an
extremely high over-voltage withstand to
eliminate heat build up that can occur with
standard technologies when the protection
devices start to clamp on the peak of each
abnormal mains cycle.

Traditional MOV technology (eg MT-275V/
135K/A) is not suitable in applications
where sustained over-voltage conditions
can be experienced.

PAGE 10

Examples of poorly regulated voltage
environments include:

• Smaller power generation supplies

• Sites with large earth currents

• Variable motor speed control circuits

• High harmonic voltage environments (non-

linear loads)

The TDS range of Movtecs with a higher
over-voltage withstand may be able to be
used in these environments following
advice.

Transient protection devices are usually rated
to protect against non-repetitive pulses from
such sources as direct or induced lightning
strikes. They are not designed to provide
protection against repeated cyclic anomalies.
Nor are they designed to provide protection

DINLINE INSTALLATION INSTRUCTIONS

Generator Generator

Avoid repetitive voltages in excess of rating

EQUIPMENT

Over-Voltage
Rating

240 Vrms

240 Vrms
Over-Voltage

Rating

Avoid high harmonic voltages

or

MOVTECMOVTECMOVTECMOVTEC

MOVTECMOVTEC

Over-Voltage
Rating

Over-Voltage
Rating

PAGE 11

GLOBAL LIGHTNING TECHNOLOGIES

against sustained over-voltage conditions
where the supply voltage exceeds the protection
equipment’s nominal rating for an extended
period of time, ie continuous over-voltages

from poorly regulated generators or
distribution systems.

Smaller power generation equipment
(particularly capacitive excitation induction
generators) does not generally conform to the
same standards of voltage regulation that are
in place for mains power reticulation. A large
number of smaller and/or cheaper generators
have a voltage waveform that is “loosely”
240Vrms (often poorly regulated), but more
importantly, often contains significant higher
order harmonics. These generators may
exhibit a peak voltage on each half cycle far in
excess of the normal 340V. The problem is
usually worse when the generator is lightly
loaded.

PAGE 12

Whilst electrical equipment may tolerate this
over-voltage for a period of time, the clamping
elements in the power protection devices will
begin to conduct on the peak of each 50Hz
cycle, as their voltage threshold is reached
(typically 400V peak for a traditional 275V
diverter). This will cause slow degradation
and ultimate failure of the clamping device
(time dependent upon how poor the waveform
is).

Harmonic voltages may also be present in
distribution systems that do not feature
generators. This is normally where non-linear
loads are used, such as UPSs, rectifiers,
switch mode power supplies and motor speed
controls. The high harmonic voltages in
certain applications may have peak voltages
in excess of the protective clamping voltage
causing problems as described above. Seek the
manufacturer’s advice before installing any

DINLINE INSTALLATION INSTRUCTIONS

product into a circuit which features a total
harmonic voltage ratio above 5%.

Model Nominal †Maximum

Voltage Permissible

Abnormal

Over-Voltage

TDS-MT-277 220-277V 480V

TDS-MTU 220-277V 480V

MT275V-135K-A 220-240V 275V

Ensure that the correct voltage rating unit is
installed. Exceeding the nominal rating while
transient events occur may affect product life.

† Note: Other voltage rating Movtecs are available. Refer

to Movtec table for actual ratings.

6. PROTECTION MODES

Movtecs are available in Three Mode and
Single Mode configurations. This refers to how
the internal protection is arranged and
applied to the circuit to be protected.

Three Mode units provide protection between
the Phase-Neutral*, Phase-Earth* and
Neutral-Earth circuit within one Movtec.

Single Mode units provide protection between
two conductors connected to the terminals
marked T1 and T2. These units can be
connected to provide protection from Phase­Neutral* or Phase-Earth* or Neutral-Earth.
To allow the status indication and alarm
circuitry to operate, a neutral connection is
required for Phase-Earth* configured units,
and a Phase* connection is required for

PAGE 13

GLOBAL LIGHTNING TECHNOLOGIES

Neutral-Earth configured units. Connection
details for single mode units are detailed on
page 15. Warning - this connection link can be
at mains potential.

* Note. Some users may be used to the

terminology “Active” or “Line”, in place of
“Phase”. For consistency “Phase” is used
throughout this documentation.

Model Modes

TDS-MTU Three Mode

TDS-MT-277 Single Mode

MT275V-135K-A Single Mode

PAGE 14

SINGLE MODE THREE MODE

T1

Terminal

Status

Electronics

T2

Terminal

X4

X3

Neutral

Terminal

Earth

Terminal

Status

Electronics

Phase

Terminal

DINLINE INSTALLATION INSTRUCTIONS

SINGLE MODE CONNECTIONS OPTIONS

Ph

T1

T2

N

PHASE

NEUTRAL

PROTECTION

LINK
X3-X4

Ph

T1

X4

T2

N

EE E

PHASE

EARTH

PROTECTION

Ph

N

T1

T2

NEUTRAL

EARTH

PROTECTION

7. CONNECTION METHOD

To optimise transient performance, attempt to
connect the Movtecs in the “Preferred” fashion
as depicted on pages 16 and 17. This is
recommended for cable sizes between 6mm
and 16mm2. Take care not to run the protected
and unprotected wire parallel or in close
proximity.

Where this is not possible due to layout or

X4

conductor size, use the “Non-preferred” “T”
connection method as depicted on pages 16 to

18. With this connection method, the “T” lead

should be between 6mm2 and 16mm2. The
connection should be as short as practicable
(less than 100mm).

Cable sizes less than 6mm2 should not be used
without specialist advice.

2

PAGE 15

GLOBAL LIGHTNING TECHNOLOGIES

PREFERRED CONNECTION METHOD

CORRECT

Separate wires

PAGE 16

INCORRECT

NON-PREFERRED "T" CONNECTION METHOD

Keep
Short

Keep Close

Keep
Short

DINLINE INSTALLATION INSTRUCTIONS

PREFERRED CONNECTION METHOD EXAMPLES

NEUTRAL

EARTH

LINE LOAD

SINGLE MODE UNITS

LINE LOAD

PHASE

THREE MODE UNITS

PAGE 17

GLOBAL LIGHTNING TECHNOLOGIES

NON-PREFERRED "T" CONNECTION METHOD EXAMPLES

NEUTRAL

2

6-16 mm

The inductance of
branch connections
increases the clamp

voltages seen by

the load.

LINE LOAD LINE LOAD

EARTH

PHASE

PAGE 18

SINGLE MODE UNITS

THREE MODE UNITS

DINLINE INSTALLATION INSTRUCTIONS

CORRECT

RCD

ELCB

Protected

Equipment

RCD

ELCB

INCORRECT

PAGE 19

GLOBAL LIGHTNING TECHNOLOGIES

8. RCD, ELCB

Where RCDs/ELCBs (Residual Current
Devices / Earth Leakage Circuit Breakers) are
fitted the Movtecs should be installed in the
circuit prior to these devices (ie upstream).
Where this can not be avoided and RCDs/
ELCBs are installed upstream, nuisance
tripping of the RCD/ELCB may occur during
transient activity.

Contact your local ERICO agent for advice if
upstream RCDs/ELCBs can not be avoided.

PAGE 20

9. ISOLATION AND FUSING

Overcurrent and short circuit protection must
be provided to protect the Movtec and
associated wiring if a fault develops. The
overcurrent protection should be installed in
such a manner to also provide a means of
isolating the Movtec module from the mains
supply. This is an important safety
consideration and is required in the event that
any future maintenance or testing is needed.

The Movtec uses disconnection devices to
isolate internal segments that have reached
the end of their service life. In order for this
disconnection to occur correctly, Movtecs
should be only used on circuits with fuse or
circuit breaker ratings of 32A or greater.
(Nuisance operation of the overcurrent
protection may occur during transient activity
on smaller capacity circuits.)

DINLINE INSTALLATION INSTRUCTIONS

Ph

Supply

N

OVERCURRENT PROTECTION

F1 >100A

Install F2 when F1 exceeds 100A

*HRC - High Rupture Capacity

F2 =100A HRC*

Equipment to
be protected

Ph

N

OVERCURRENT PROTECTION

Ph

F1 >100A

Upstream Fuse

Supply

N

Suitable connection method when upstream

Fuse/Supply capacity does not exceed 100A

Ph

Equipment to
be protected

N

PAGE 21

GLOBAL LIGHTNING TECHNOLOGIES

On circuits with a capacity of greater than
100A, the Movtecs should be installed in
series with a 100A HRC fuse being placed
prior to the Movtec, as detailed in the diagram
on page 21. This will require the Movtec to be
installed in a similar manner to the non­preferred “T” connection method. Care must
be taken to keep “T” connections as short and
straight as possible. Note that this fuse may
rupture under surge events exceeding 60kA,
thereby disconnecting the protection circuit.
Under such conditions it is important that
suitable monitoring of the alarm contact
should be carried out to detect this possible
occurrence.

PAGE 22

10. STATUS INDICATION AND
ALARMS

A characteristic of all transient and surge
protection devices is that they degrade in
proportion to the magnitude and number of
incident surges to which they have been
subjected. Status indication should be
periodically monitored to determine if
replacement is required.

Each Movtec features 5 protection segments.
The status for each of these sectors is
provided by way of a 5 segment LED bar
graph. If any sector is damaged due to excess
surge activity, a LED will extinguish. The
LEDs extinguish in a sequential order (100%
LED out first, 80% LED out next etc.)
irrespective of which sector has sustained
damage.

DINLINE INSTALLATION INSTRUCTIONS

When mains voltage is applied to the fully
functional Movtec, the alarm contacts will be
closed. Should the surge handling capacity
fall to below the alarm threshold, these
contacts will open. The contacts are “fail-safe”
in that, if power to the unit fails, the contacts
will also revert to the open condition.

For Single Mode units (TDS-MT-277 and
MT275V-135K-A)

• The voltage free alarm contacts are activated
(opened) as soon as the primary protection
status displays 60% or less and indicates
that the Movtec unit should be replaced.

For Three Mode units (TDS-MTU)

• The voltage-free alarm contacts are activated
(opened) as soon as the protection status
displays 80% or less. This indicates that
damage has been sustained to the protection

of one of the three modes and that the TDS­Movtec unit should be replaced.

MOVTEC MODEL TERMINALS ALARM OPERATES

WHEN

TDS-MT-277 X5 & X7 MOVTEC displayed

capacity =< 60%

MT275V-135K-A X5 & X7 MOVTEC displayed

capacity = <60%

TDS-MTU X5 & X7 MOVTEC displayed

capacity = <80%

Contact Rating 250Vac, 10A resistive, 1A inductive
Contact connection Multi-stranded wire with CSA not

greater than 1.5mm

2

Where multiple Movtecs are used, such as in
three phase distribution systems the alarm
contacts may simply be connected in series to
provide a common alarm output connection.

PAGE 23

GLOBAL LIGHTNING TECHNOLOGIES

11. MPM, MOVTEC PROTECTION
MODULE

The MPM utilises a high energy Neutral to
Earth spark gap to provide robust protection
against earth potential rise problems. Care is
required to ensure co-ordination of this device

MPM

Supply Equipment to

PREFERRED CONNECTION METHOD

PAGE 24

be protected

Supply Equipment to

NON PREFERRED

"T" CONNECTION METHOD

if any other voltage limiting device is
connected either upstream or downstream in
the Neutral to Earth circuit. Contact your

local agent for further information if
other N-E protection devices are
installed and co-ordination may be
affected.

MPM

(Refer section 7)

be protected

Supply Equipment to

CONNECTION METHOD ON

CIRCUITS GREATER THAN 100A

MPM

100A HRC Fuses
in phase lines

be protected

DINLINE INSTALLATION INSTRUCTIONS

INSTALLATION PROCEDURE FOR MPM

1. Remove the cover from the MPM.

2. Select the MPM mounting position to ensure
optimum electrical connection method (refer
Section 7) and in accordance with all given
instructions.

3. Position and mark the mounting position of
the MPM on the wall.

4. Depending on the mounting surface, prepare
suitable anchoring holes for the marked
position.

5. Snap the mounting spacers, supplied, into
the rear of the back of the MPM as shown
in Figure 1. (see inside back cover P31)

6. Mount the unit to the wall. To ensure the
IP33 rating is preserved, the MPM should
be mounted to the wall using the spacers
provided and one of the fixing methods as
shown in Figure 1. (see inside back cover P31)

7. Prepare the appropriate cable glands. It is
recommended that a nylon cable gland
(typically rated at IP66) be used.

8. Install wiring, taking care to support cabling
directly connecting to the MPM unit, and
tighten all terminals.

9. Check that the MPM is installed in accord­ance with all instructions, and relevant
electrical safety codes.

10.Replace MPM cover, then apply power.

11.Correct operation of the MPM unit is estab­lished by checking that all 5 LED’s on each
MOVTEC bar graph are lit, and that power
is correctly being supplied to the load(s).

INSTALLATION ARRANGEMENT FOR
AUSTRALIAN MEN SYSTEMS

Under Australian Standards classification,
MPMs are considered a piece of equipment to

PAGE 25

be connected to the mains
supply. The MPMs are not
intended for use as, nor are
they, a ‘switch

board’,
‘distribution board’ or other
equipment. As MPMs are
classified as ‘electrical
equipment’ (ie: a product),
AS 3000 Wiring Regulations
apply to the installation and
operation of the units.

In the multiple earth
neutral (MEN) distribution
system, the MPM equipment
should be installed as clos e
as possible after the MEN
point and after both the
main disconnect switch/
overcurrent protector and
any metering equipment.

PAGE 26

GLOBAL LIGHTNING TECHNOLOGIES

TYPICAL CONNECTION DETAIL FOR MPM POINT-OF-ENTRY INSTALLATION

IN MEN DISTRIBUTION SYSTEM

NEUTRAL

EARTH

1

2

3

METERING

MAIN

DISTRIBUTION

M.E.N.
LINK

MPM

SUB

DISTRIBUTION

DINLINE INSTALLATION INSTRUCTIONS

12. MAINTENANCE & TESTING

Before removing any unit from service
ensure that power to the device is
isolated. Replacement of any Movtec
units should only be undertaken in
accordance with all relevant Electricity
and Safety Standards by suitably
qualified personnel.

Movtecs should be inspected periodically, and
also following any periods of lightning or
transient activity. Check the status indicators
and replace if in the “Alarm” condition as
detailed in Section 10 -STATUS INDICATION.

For high transient exposure sites or those of a
critical operational nature, it is recommended
that the alarm outputs be monitored to
provide an additional warning of reduced
capacity (refer Section 10).

Movtecs are designed for optimum
performance under severe transient activity.
To provide this performance, electronic
components in the Movtec are encased in a
patented proprietary, shock and thermal
absorbant compound. Units cannot be

serviced, they must be replaced.

Do not attempt to open or tamper with the
units in any way as this may compromise
performance and will void warranty.

Do not “Megger” or perform other types of
electrical tests that apply voltages greater
than the nominal operating voltage of the
Movtec. The Movtec will attempt to limit these
voltages thereby affecting the test result.
Where these tests must be performed, remove
the Movtec from circuit first.

PAGE 27

GLOBAL LIGHTNING TECHNOLOGIES

13. EXTENDED WARRANTY

This product has a limited warranty to be free
from defects in materials and workmanship for a
period of five (5) years from the date of dispatch
from the Manufacturer. The Purchaser
acknowledges that lightning is a natural event
with statistical variation in behaviour and energy
levels which may exceed product ratings, and 100 %
protection is not offered and cannot be provided
for. Therefore the Manufacturer’s liability is
limited to the repair or replacement of the product
(at the Manufacturer’s sole option) which in its
judgement has not been abused, misused,
interfered with by any person not authorised by
the Manufacturer, or exposed to energy or
transient levels exceeding the Manufacturer’s
specifications for the product. The product must
be installed and earthed (where applicable) in
strict accordance with the Manufacturer’s
specifications and all relevant national Electricity
and Safety Standards. The Manufacturer and the

PAGE 28

Purchaser mutually acknowledge that the
product, by its nature, may be subject to
degradation as a consequence of the number and
severity of surges and transients that it
experiences in normal use, and that this warranty
excludes such gradual or sudden degradation.
This warranty does not indemnify the Purchaser
of the product for any consequential claim for
damages or loss of operations or service or profits.
Customers should contact their nearest
manufacturer’s agent to obtain a Product Repair
Authorisation Number prior to making any claim
under this warranty. This is only a summary of
the warranty given by the Manufacturer. The full
text of the warranty is set out in the
Manufacturer’s Conditions of Quotation and Sale.
The above limited warranty is additional to rights
which arise in respect of the sale of industrial and
technical products and services to knowledgable
buyers under the Australian Trade Practices Act
1974 as amended.

DINLINE INSTALLATION INSTRUCTIONS

14. SIX POINT PLAN

Critec Movtec surge diverters form an
important part of the much larger ERICO
lightning, surge and transient protection
philosophy (ERICO Lightning Technologies
“Six Point Plan”). The level of protection and
the degree of attention dedicated to each of
the six points will require careful
consideration for each site. The degree of
protection required is determined by the
individual site location/exposure with the aid
of risk management principals.

For further advice on your protection needs
please contact your local representative.

Capture the
lightning strike

Conduct the strike
to ground safely

Dissipate the energy
through a low
impedance earth
system

Eliminate earth
loops and
differentials

Protect equipment
from surges on
power lines

Protect equipment
from transients on
telecommunication
and signal lines

PAGE 29

15. USE OF MIMIC PANELS

Movtecs are used in the Proline range of
Surge Reduction Filters where superior
protection is required for critical or sensitive
electronic equipment. Some models of SRF use
an electronic mimic panel to display in the

M

OVTEC

& M

front door the status of the internal Movtecs.
The X1-X4 terminals on the Movtec are used
for this purpose. If this Movtec is to be used
with a mimic panel (possibly as a replacement
for an existing Movtec in a SRF) please ensure
compatibility as below.

IMIC COMPATIBILITY

Movtec Version Mimic Version

TDS-Mimic Hybrid Mimic Discrete Mimic

#300732 #300731 #300730

EA-SRFP-117 EA-SRFP-115 EA-SRFP-104

EA-117 EA-115 EA-104
TDS-MT-277 Yes Note 1 No
MT-275V/135K/A #300867 Yes Yes Note 2
MT-275V/135K/A #300865/300866 Yes Yes Yes
Note 1 Mimic will operate for supply voltages up to 275Vrms
Note 2 Request Product Update 44 for further details

PAGE 30

Figure 1. MPM mounting spacers.

SINGLE MODE CONNECTIONS OPTIONS

Ph

T1

LINK
X3-X4

Ph

T1

X4

Ph

N

E

www.erico.com

T2

PHASE

NEUTRAL

PROTECTION

T2

N

E

PHASE

EARTH

PROTECTION

N

T1

X4

T2

E

NEUTRAL

EARTH

PROTECTION