Siemens TPS3 11 Manuel d'utilisateur télécharger pdf (Page 6)

SPDs on Ungrounded Systems

Caution – Ungrounded systems are inherently unstable and can

produce excessively high line-to-ground voltages during certain fault

conditions. During these fault conditions, any electrical equipment

including an SPD, may be subjected to voltages which exceed their

designed ratings. This information is being provided to the user so

that an informed decision can be made before installing any electrical

equipment on an ungrounded power system.

Optional Flush Mount Installation Instructions

Caution: The chassis of the TPS3 11 unit can fall into the wall cavity

if the four screws attaching the faceplate to the chassis are removed.

Use caution not to drop the TPS3 11 unit into the wall during instal-

lation or service.

The TPS3 11 unit is approximately 4.0” deep. The unit will not mount

ush unless there is at least 3.75” of clearance. The unit is designed

to mount ush on a typical “2 x 4” stud wall with drywall.

Depending on the depth of the wall cavity, there are two installation

procedures. The preferred installation utilizes Back Flange Mounting.

The back ange supports the weight of the TPS3 unit and service

procedures are greatly simplied. If this can not be accomplished, an

alternate Front Flange Mount is possible. Please note that the front

ange installation may create servicing difculties in the future.

Preferred Installation - Back Flange Mounting: Mount as close as

possible to the protected panel. Create a wall opening approximately

6 3/4” tall by 6 1/16” wide. See drawing. (Rotate dimensions 90

appropriate depending on orientation.) Congure an appropriate

backing plate inside the wall cavity 3 7/8” from the wall face such that

the unit will be supported from its back. Note the mounting holes on

the back ange attachments. Be careful not to drop the unit into the

wall. Congure electrical conductor and conduit connection consistent

with the installation instructions on page 5. Preplan connections such

that they are completed prior to fastening the unit to the backing

plate. Install faceplate/cover prior to energizing and testing the unit.

Alternate Installation - Front Flange Mounting: This method is not

preferred for installation as servicing is substantially more difcult.

Extra care should be taken to NOT DROP the TPS3 unit into the wall.

Mount as close as possible to the protected panel. Create a wall open-

ing approximately 6 3/4” tall by 6 1/16” wide. See drawing. (Rotate

dimensions 90

as appropriate depending on orientation.) Preplan

and pre-connect electrical conductor and conduit connections such

that they are completed prior to fastening the TPS3 unit to the wall.

Note that removing the four screws attaching the front faceplate to

the unit chassis will cause the unit to fall inside the wall.

UL 1283 required language concerning the installation of EMI Filters

a) An insulated grounding conductor that is identical in size and

insulation material and thickness to the grounded and ungrounded

circuit supply conductors, except that it is green with or without one

or more yellow stripes, is to be installed as part of the circuit that

supplies the lter. Reference should be made to Table 250-122 of

the National Electrical Code regarding the appropriate size of the

grounding conductor.

b) The grounding conductor mentioned in item a is to be grounded

to earth at the service equipment or other acceptable building

earth ground such as the building frame in the case of a high-rise

steel-frame structure.

c) Any attachment-plug receptacles in the vicinity of the lter are to

be of a grounding type, and the grounding conductors serving these

receptacles are to be connected to earth ground at the service equipment

or other acceptable building earth ground such as the building frame

in the case of a high-rise steel-frame structure.

d) Pressure terminal or pressure splicing connectors and soldering lugs

used in the installation of the lter shall be identied as being suitable

for the material of the conductors. Conductors of dissimilar metals shall

not be intermixed in a terminal or splicing connector where physical

contact occurs between dissimilar conductors unless the device is

identied for the purpose and conditions of use.

Flush Mount “F Option” (Preferred Installation)

Supplemental Installation Instructions

for Deep Wall Mounting

(Walls over 4” thick) Using the Enclosed Mounting Feet

Figure 3: Optional Flush Mount Installation

Step 1

Prepare Wall and SPD

Step 3

Mount the SPD

Step 2

Insert into Wall

Step 4

Mount the Lid

Wall Cutout

Front View

6 1/16”

Wide

6 3/4”

Tall

Supplemental Instructions for

Deep Wall Mounting (Walls over 4” thick)

Using the Enclosed Mounting Feet

1 2 3 4 5 6 7 8 9 10 11 12

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Siemens TPS3 11 Manuel d'utilisateur Page 6

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