ERICO TDX Modular User Manual

TDX Modular Diagnostic Sheet

DANGER: Electrical shock or burn hazard. Installation of this SPD should only be made by qualifi ed personnel.

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Failure to lockout electrical power during installation or maintenance can result in fatal electrocution or severe burns.

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CAUTION: Check to make sure system voltages do not exceed the SPD voltage requirement and the correct SPD
voltage/model has been selected. This unit must be installed in accordance with the National Electrical Code
(ANSI/NFPA-70) and applicable local codes.

CAUTION: Ungrounded power systems are inherently unstable and can produce excessively high line-to-ground

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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.

Operational Chart

Alarm

Buzzer

Off On On Closed Unit

Off Off Off Open Power not applied

On Off Off Open Fuse blown or both

On Off On Open Module failed Replace failed

• All indicator lights are red

• The L1, L2, L3 indicator lights (L1,L2 on split phase) monitor the TDXFUSE status to the unit when power is applied. If power is applied and this light
is OFF, it is an indication that the TDXFUSE on that phase has blown open circuit.

Protection Status

Indicator Light

L1, L2, L3

Indicator Light

Remote

Contacts

Unit

Status

operational

to unit

fuse blown and

module failed

Action

Check power source

Test fuses, visually

inspect modules /

replace if required

module(s)

Servicing your TDX unit - Testing fuses

Remove plate at the base of the TDX unit. Remove fuse cover on the bottom tray using a #1 Phillips head screw driver (recommended.)
Fuses should be tested using a multimeter as above. If a fuse(s) has blown, the replacement part number is TDXFUSE.

Tools / Parts you may need:

• Replacement Module(s) and Replacement Fuse(s)

• 3/16” Flat head screw driver

• 5/16” Flat head screw driver

• #1 Phillips head screw driver

TDX Modular Diagnostic Sheet

Replacing fuses

Remove the fuse by turning
the fuse ejector 90 degrees
using a 3/16” fl at head screw
driver (recommended.)
Make sure the head of the
screw driver is as large as the
access point to prevent
stripping the slot.

Replacing modules

Remove with pliers

Replacement modules can be
identifi ed by the chart below
or by the plastic strip on
the side of the tray. A small
fl athead screw driver (above
photo) will assist in removing
the tripped module. Modules
ship with a black key for
use in dinrail bases. This key
must be removed prior to
installation into the TDX tray.

Reinstalling the Tray

Make sure the green PCB
board lines up with the slots
as you slide the tray into the
housing. Push tray fi rmly in
to housing and replace base
plate and screws. For models
with a surge counter, the slot
will start 1”(25.4mm) into
the housing.

Orderable replacement

part number

Part number

on module

Number on tray Model Voltage

TDS150M150 TDS150 1S(R)-150 TDS 150 120/208, 120/240, 120/240D

TDS150M240 TDS150 1S(R)-240 TDS 240 240D, 120/240D

TDS150M277 TDS150 1S(R)-277 TDS 277 277/480, 277/480TT

TDS150M560 TDS150 1S(R)-560 TDS 560 347/600, 480D

SGD125M SGD125 1S(R)NE SGD 125 277/480TT (N-E)

For any other issues, visit erico.com for a list of technical support contact numbers.

DANGER
ELECTRICAL SHOCK OR BURN HAZARD. HAZARDOUS VOLTAGES EXIST INTERNAL TO THE TDX. THIS UNIT SHOULD BE INSTALLED AND SERVICED ONLY BY QUALIFIED PERSONNEL IN
CONFORMANCE WITH ALL GOVERNING CODES AND INSTRUCTIONS. FAILURE TO LOCKOUT ELECTRICAL POWER DURING INSTALLATION OR MAINTENANCE CAN RESULT IN FATAL
ELECTROCUTION, SEVERE BURNS, OR OTHER INJURIES. BEFORE WORKING WITH OR MAKING ANY CONNECTIONS TO THIS DEVICE, BE SURE THAT POWER HAS BEEN REMOVED FROM
ALL ASSOCIATED WIRING, ELECTRICAL PANELS, AND OTHER ELECTRICAL EQUIPMENT.

1. The power supply to the TDX should always be turned (and locked) OFF before the unit is accessed for any reason.

2. Prior to installation, ensure that the TDX is of the correct voltage, current, phasing, and frequency for the applicable rating of the power distribution system.

3. Diagrams are for reference only. Schematics are representative of typical applications and are only to be used for reference.

WARNING

1. ERICO products shall be installed and used only as indicated in ERICO product instruction sheets and training materials. Instruction sheets are available at www.erico.com and from
your ERICO customer service representative.

2. ERICO products must never be used for a purpose other than the purpose for which they were designed or in a manner that exceeds specifi ed load ratings.

3. All instructions must be completely followed to ensure proper and safe installation and performance.

4. Improper installation, misuse, misapplication or other failure to completely follow ERICO instructions and warnings may cause product malfunction, property damage, serious

bodily injury and death.

SAFETY INSTRUCTIONS
All governing codes and regulations and those required by the job site must be observed. Always use appropriate safety equipment such as eye protection, hard hat, and gloves as
appropriate to the application.

WARNING
ERICO products shall be installed and used only as indicated in ERICO’s product instruction sheets and training materials. Instruction sheets are available at www.erico.com and from
your ERICO customer service representative. Improper installation, misuse, misapplication or other failure to completely follow ERICO’s instructions and warnings may cause product
malfunction, property damage, serious bodily injury and death.

Copyright ©2014 ERICO International Corporation. All rights reserved.
CADDY, CADWELD, CRITEC, ERICO, ERIFLEX, ERITECH, and LENTON are registered trademarks of ERICO International Corporation.

www.erico.com

IP8289_A E158IS14NAEN WB0414