Eaton IM01005012E Manuale utente

Effective Date 2/2007 For more information visit: www.itvss.com

Contents

Page

1Introduction............................................................................. 1

1.1 Scope......................................................................... 1

1.2 XT-40 Catalog Numbering System............................ 1

1.3 IT-RSS System Wiring and Maximum Voltages........ 1

1.4 Safety Precautions..................................................... 2

2Installation............................................................................... 3

2.1 Before Installation...................................................... 3

2.2 XT-40 Wiring Diagrams ............................................. 4

2.3 IT-RSS Wiring Diagram............................................. 5

2.4 Installing Circuit Interrupt Devices............................. 5

2.5 Conduit Installation.................................................... 6

2.6 Mounting the SPD...................................................... 6

2.7 Wiring SPD to Electrical System ............................... 7

2.8 Power Up and System Checkout............................... 8

Instruction Manual:

IM01005012E

Rev. 1 – February 2007

Innovative Technology

TVSS Products

XT-40 & IT-RSS

Installation

XT-40 / IT-RSS

IM01005012E XT-40 & IT-RSS Installation

Page A Rev. 1 – 2/2007

http://www.itvss.com/

Notice:

Product improvements and enhancements are continuous; therefore the specifications and information contained in this

document may change without notice.

Eaton Corporation shall not be liable for errors contained herein or for incidental or consequential damages in connection

with the furnishing, performance, or use of this material.

No part of this document may be reproduced for publication, or translated to another language without the prior written

consent of Eaton Corporation.

Innovative Technology® is a registered trademark of Eaton Corporation. All other trademarks, trade names, service marks

and logos referenced herein belong to their respective owners.

XT-40 & IT-RSS Installation IM01005012E

Rev. 1 – 2/2007 Page 1

1 INTRODUCTION

1.1 Scope

This installation manual contains the information necessary to install Eaton Corporation’s XT-40 and

IT-RSS Surge Protective Devices (SPDs). System wiring and voltage information for these devices are

provided in Sections 1.2 and 1.3.

If you require further information regarding a particular installation, contact Power Quality Technical

Support at 1-800-809-2772.

1.2 XT-40 Catalog Numbering System

-40-

Model / Surge Current Configuration & Voltage Ranges (Vac)

1S101 =Split-Phase — 100/200, 110/220, 120/240

3Y101 =Three-Phase Wye (Star) — 100/174, 110/190, 120/208, 127/220

1P101 =Single-Phase — 100, 110, 120, 127

XT / 40 kA 1P201 =Single-Phase — 200, 208, 220, 230, 240, 277

1P400 =Single-Phase — 380, 400, 415, 440, 480

3Y201 =Three-Phase Wye (Star) — 220/380, 230/400, 240/415, 277/480

3Y300 =Three-Phase Wye (Star) — 305/525, 347/600

3D101 =Three-Phase High Leg Delta — 120/240

NN201 =Three-Phase Delta — 200, 208, 220, 230, 240

NN400 =Three-Phase Delta — 380, 400, 415, 440, 480

NN501 =Three-Phase Delta — 525, 600

In this example, Catalog NumberXT-40-3Y101 identifies

an XT model with the following features and ratings:

• Surge Current Rating of 40 kA

• Three-Phase WYE Configuration

• Voltage Range of 100 to 220Vac

1.3 IT-RSS System Wiring and Maximum Voltages

Model

Number System

Wiring Phase to

Phase Line to

Ground

IT-RSS Split Phase 288 Vac 144 Vac

IM01005012E XT-40 & IT-RSS Installation

Page 2 Rev. 1 – 2/2007

1.4 Safety Precautions

A licensed/qualified electrician must complete all instructions and measurements described in this

instruction in accordance with the U.S. National Electrical Code, state and local codes, or other applicable

country codes. The U.S. National Electrical Code and state and local requirements (or other applicable

country codes) supersede this instruction. Read and understand all instructions before beginning

installation.

WARNING! The use of the word WARNING in this manual denotes a potential hazard associated

with the use of this equipment. It calls attention to a procedure, practice, or condition, or the like,

which if not correctly performed or adhered to, could result in personal injury or death.

CAUTION The use of the word CAUTION in this manual denotes a potential hazard associated

with the use of this equipment. It calls attention to a procedure, practice, condition, or the like,

which if not correctly performed or adhered to, could result in damage to the equipment.

WARNING! SHOCK HAZARDS:

IMPROPER INSTALLATION CAN CAUSE DEATH, INJURY AND/OR EQUIPMENT DAMAGE.

Follow all warnings and cautions. Completely read and understand the information in this

document before attempting to install or operate this equipment.

IMPROPER WIRING COULD CAUSE DEATH, INJURY, AND/OR EQUIPMENT DAMAGE. Only

licensed/qualified electricians who are trained in the installation and service of electrical devices

are to service this equipment.

USE APPROPRIATE SAFETY PRECAUTIONS AND EQUIPMENT FOR ARC FLASH

PROTECTION.

XT-40 & IT-RSS Installation IM01005012E

Rev. 1 – 2/2007 Page 3

2 INSTALLATION

2.1 Before Installation

Perform or plan the following before installing the SPD:

1. Locate your electrical system’s applicable wiring diagram in Sections 2.2 & 2.3

2. Verify that your electrical system’s voltage and wiring configuration matches that of the SPD as

shown on its label.

3. De-energize the SPD, and follow safe work practices to avoid an electrical shock hazard.

4. Ensure that a Neutral to Ground/Earth bond is present at the SPD. Note that the SPD may be

damaged if not connected to ground.

5. Measure the voltage between Neutral and Ground. If this voltage is greater than 5 Vac, then a

problem may exist in the electrical system. The SPD can still be installed under this condition, but

a licensed/qualified electrician should be consulted to correct the problem.

6. The SPD can be mounted in any position. If necessary, the cover may be rotated 180 degrees to

improve readability of the label. When removing the cover, be careful not to damage the indicator

light circuit board or wiring attached to the cover.

7. Isolated Ground: The SPD’s ground wire is internally bonded to its housing. If the electrical

system utilizes an isolated ground, then the SPD’s housing must also be isolated from ground

using insulated conduit fittings, and its ground wire must be connected to the system’s isolated

ground bus.

8. Plan to use weatherproof (corrosion resistant) conduit and fittings to maintain the enclosure’s

NEMA 4 (IP66) or 4X rating.

9. Plan to install the SPD as close as possible to the electrical panel. Long lead lengths and sharp

bends between the SPD and the panel will degrade the performance of the SPD.

10. Plan to install 30 A circuit interrupt devices as described in Section 2.4.

IM01005012E XT-40 & IT-RSS Installation

Page 4 Rev. 1 – 2/2007

2.2 XT-40 Wiring Diagrams

Single Phase (1P101, 1P201)

CIRCUIT

INTERRUPT

DEVICE

PHASEA

GROUND

NETURAL

or PHASE B

Use Interrupt Device if

connected to Phase B

NOT Neutral

XT-40

Split Phase (1S101)

CIRCUIT

INTERRUP

DEVICE

PHASEA

NEUTRAL

GROUND

PHASE B

Solid bond between

Ground/Earth and

Neutral at service

entrance or serving

isolation transformer

XT-40

3-Phase Wye (Star) (3Y101, 3Y201, 3Y300)

CIRCUIT

INTERRUP

DEVICE

PHASEA

NEUTRAL

GROUND

PHASE B

PHASE C

Solid bond between

Ground/Earth and

Neutral at service

entrance or serving

isolation transformer

XT-40

3-Phase Delta (No Neut.) (NN201, NN400, NN501)

CIRCUIT

INTERRUP

DEVICE

PHASEA

GROUND

PHASE B

PHASE C

XT-40

3-Phase Delta (High-Leg) (3D101)

XT-40

CIRCUIT

INTERRUP

DEVICE

PHASEA

GROUND

NEUTRAL

PHASE B (High Leg)

PHASE C

Solid bond between

Ground/Earth and

Neutral at service

entrance or serving

isolation transformer

XT-40 & IT-RSS Installation IM01005012E

Rev. 1 – 2/2007 Page 5

2.3 IT-RSS Wiring Diagram

Split Phase – 288 Vac Phase to Phase Max.

IT-RSS

CIRCUIT

INTERRUP

DEVICE

PHASEA

GROUND

PHASE B

2.4 Installing Circuit Interrupt Devices

The SPD must be connected to the electrical system through a 30 A circuit interrupt device as listed in

Table 2-1. The circuit interrupt device can consist of fuses, individual circuit breakers (single breaker for

each phase), or a multi-pole / single throw breaker.

A pre-existing breaker of rated load size may be utilized if provisions for multi-conductor connections are

made according to U.S. NEC 110-14a (or other applicable country codes). Avoid using a pre-existing

breaker that when operated will cause a critical system shut down.

For XT-40 Single Phase applications (refer to Section 2.2, Single Phase Diagram), note that if the Neutral

wire is used as Phase B, then an additional interrupt device must be used for that phase.

Table 2-1. Wire and Circuit Interrupt Device Requirements

Circuit Interrupt Device Required

for Installation

Models Wire Size

Max. Current Rating Type

XT-40

IT-RSS

#10 AWG

(6 mm

)

Stranded Wire

Included

30 Amps

Fuse(s) or Breaker(s)

Not Included

Class RK5 Fuse(s)

Single-Pole / Single Throw

Breaker for each Phase

Multiple-Pole / Single Throw

Breaker

IM01005012E XT-40 & IT-RSS Installation

Page 6 Rev. 1 – 2/2007

2.5 Conduit Installation

When planning the conduit installation, avoid using 90° elbows and keep the conduit run as short and

straight as possible. See Figure 2-1. When applicable, use weatherproof (corrosion resistant) conduit and

fittings to maintain the enclosure’s NEMA 4 or 4X rating.

If the system utilizes an isolated ground, then the SPD’s housing must be isolated from ground using

insulated conduit fittings.

Figure 2-1. Conduit Installation Guidelines

2.6 Mounting the SPD

The SPD is to be installed through a panel knockout and via its mounting feet. Place SPD against

mounting surface and mark feet positions. Complete conduit connection installation. Screw box to surface

with appropriate screws. Mounting dimensions and weight are shown in Figure 2-2.

Mount the SPD to provide the shortest and straightest possible wire installation from the SPD to the

system bus. Excessive wire length and sharp bends will degrade suppressor performance;

therefore, avoid excessive wire length and sharp bends when all possible.

If installing on a system other than an electrical panel, mount SPD in close proximity to the system being

protected using the necessary means for mounting.

Note: A circuit interrupt device is still required when installing suppressor on a

system other than an electrical panel.

The SPD contains no position-oriented components and can be mounted upside down or sideways.

Cover may be rotated 180 degrees to improve label readability. Take care to support cover to prevent

damage to indicator light circuit board and wiring.

WARNING! Cover will not seal when rotated ONLY 90 degrees. This invalidates NEMA 4 rating

and may create safety hazard.

Avoid sharp bends in

wiring and longer than

necessar

wire len

ths

Keep wire lengths as

short and straight as

possible

XT-40 & IT-RSS Installation IM01005012E

Rev. 1 – 2/2007 Page 7

Figure 2-2. XT-40 & IT-RSS Mounting Dimensions

2.40

(61.0)

1.77

(45.0)

3.15

(80.0)

2.48

(63.0)

4.17

(105.9)

3.23

(82.0)

4.73

(120.1)

5.58

(141.7)

4.80

(121.9)

3.15

(80.0)

0.25

(6.4)

Mounting

Hole Shafts

Mounting Holes

Under Lid (4)

0.75 (19.0) Internally

Threaded Conduit Fitting

2.87

(73.0)

0.79

(20.1)

1.38

(35.1)

Weight: 3lb

Dimensions: Inches (mm)

Note: Remove cover to

gain access to the

mounting hole shafts.

2.7 Wiring SPD to Electrical System

Important! When connecting the wires from the SPD to the electrical system, cut the

wires as necessary to keep them as short as possible. In addition, to maximize the SPD’s

performance, also twist and bind the wires together to reduce the impedance of the wire.

1. Locate your electrical system’s applicable wiring diagram in Section 2.2 or 2.3. Reference

this wiring diagram as necessary in Steps 2, 3, and 4.

2. Connect the Ground wire (green) from the SPD to the system’s Ground bus bar.

Important! If the system utilizes an isolated ground, then its ground wire must be

connected to the system’s isolated Ground bus.

3. For the XT-40, connect the Neutral wire (white) from the SPD to the system’s Neutral bus

bar (not required for 3-Phase Delta systems – NN201, NN400, and NN501).

4. Connect each Phase wire from the SPD through one of the circuit interrupt devices

installed in Section 2.4 to the system’s corresponding Phase voltage connection.

Tip: To ensure that the front panel phase voltage LEDs glow evenly, be sure that the phase wires

are attached to their associated phase (A to A, B to B, and C to C). The wires or terminals of the

SPD are marked with the intended phase for the electrical system (A, B, or C). Use a phase

rotation meter to identify the electrical system’s phase sequence prior to wiring the SPD — DO

NOT trust existing markings.

IM01005012E XT-40 & IT-RSS Installation

Page 8 Rev. 1 – 2/2007

2.8 Power Up and System Checkout

Apply system power and observe that the LED(s) on the front of the SPD should glow. One LED should

glow for each Phase voltage being monitored.

Should there be a significant difference in brightness, check the phase rotation of the panel and ensure

that the SPD’s Phase wires are connected to the correct phase. Slight differences in brightness DO NOT

indicate a faulty device, rather specification tolerance differences of the indicator circuit’s components.

LED brightness symmetry and/or level do not indicate the SPD’s operational status.

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