Eaton UL1066 Magnum Manual

Instructional Leaet IL0131134EN Effective February 2022
Supersedes October 2020
Air circuit breakers with PXR trip units -
PXR rated current ( I
n) marking change
m WARNING
(1) ONLY QUALIFIED ELECTRICAL PERSONNEL SHOULD BE
PERMITTED TO WORK ON THE EQUIPMENT.
(2) ALWAYS DE-ENERGIZE PRIMARY AND SECONDARY CIRCUITS IF
A CIRCUIT BREAKER CANNOT BE REMOVED TO A SAFE WORK
LOCATION.
(3) DRAWOUT CIRCUIT BREAKERS SHOULD BE LEVERED (RACKED)
OUT TO THE DISCONNECT POSITION.
(4) ALL CIRCUIT BREAKERS SHOULD BE SWITCHED TO THE OFF
POSITION AND MECHANISM SPRINGS DISCHARGED.
FAILURE TO FOLLOW THESE STEPS FOR ALL PROCEDURES
DESCRIBED IN THIS INSTRUCTION LEAFLET COULD RESULT IN
DEATH, BODILY INJURY, OR PROPERTY DAMAGE.
m WARNING
THE INSTRUCTIONS CONTAINED IN THIS IL AND ON PRODUCT
LABELS HAVE TO BE FOLLOWED. OBSERVE THE FIVE SAFETY
RULES:
– DISCONNECTING
– ENSURE THAT DEVICES CANNOT BE ACCIDENTALLY RESTARTED
– VERIFY ISOLATION FROM THE SUPPLY
– EARTHING AND SHORT-CIRCUITING
– COVERING OR PROVIDING BARRIERS TO ADJACENT LIVE PARTS.
DISCONNECT THE EQUIPMENT FROM THE SUPPLY. USE ONLY
AUTHORIZED SPARE PARTS IN THE REPAIR OF THE EQUIPMENT.
THE SPECIFIED MAINTENANCE INTERVALS, AS WELL AS THE
INSTRUCTIONS FOR REPAIR AND EXCHANGE, MUST BE STRICTLY
ADHERED TO PREVENT INJURY TO PERSONNEL AND DAMAGE TO
THE SWITCHBOARD.
Instructions apply to:
UL489 PD-NF
IEC IZMX16
UL489 PD-RF
IEC IZMX40
UL1066 Magnum
Magnum PXR

2
Effective February 2022 Air circuit breakers with PXR trip units -
PXR rated current ( I
n) marking change
EATON www.eaton.com
Section 1: Introduction
Air circuit breakers with PXR electronic trip units are pre-configured
at the factory for their rated current (In). This software allows you
to modify the Inwithin a restricted range. The allowable Inratings
are determined by a combination of factors including the breaker’s
construction and the breaker’s application. This software will restrict
the In to the values supported by the circuit breaker’s construction.
You are responsible to limit the Invalue based on the application and
not exceed any value specified by the engineer responsible for the
installation.
Protection settings of the trip unit are based on the Inrating. These
settings affect the time-current curves and contribute to proper sys-
tem coordination. Modification of the Inmay require re-evaluation
of the circuit breaker’s protection settings and overall coordination
study to ensure proper application by the engineer responsible for
the installation.
The Change PXR ACB Rated Current functionality in PXPM is used in
place of the rating plugs used in Digitrip trip units.
This Instruction Leaflet provides instructions for updating the current
marking on the breaker after making a change to the rated current
(In) using PXPM and the licensed Change PXR ACB Rated Current
functionality. The user is responsible for updating the rated current
(In) marking on the breaker frame to match new rated current (In) to
ensure compliance with regulatory bodies.
Figure 1. PXR rated current marking component overview
(Magnum shown).
PXR trip unit
Frame rating
module Inrating
Section 2: Replacing the rated current label
ote:N A number of graphics in these instructions use the Magnum frame
breaker only as typical examples. The PD-RF and PD-NF breakers are similar
in those situations.
Step 1. Peel the factory In label from the Frame Rating Module
cover.
Step 2. Find the label corresponding with the new rated current
(In) programmed through PXPM. These labels are included
as part of PXPM-SW-PXRIN-KIT-1, along with the license to
make one change to a breaker’s rated current.
Figure 2. Step 2. Provided label sheet
Step 3. Place label over the rated current (In) marking located on the
trip unit such that the previous marking is no longer visible.
Figure 3. Step 3. Placing label
ote:N A blank white field is provided on the Frame Rating Module cover
beneath the factory rated current label. If the correct rated current label is not
available at the time of reprogramming, remove the factory rated current label
and mark the new rated current on the white field with a permanent marker.
Contact Eaton for new rated current labels and apply the correct label when
available.
70C2131H01
I =6300
I =5000
I =3800
I =3200
I =2500
I =1600 I =2000
I =3000
I =3600
I =4000
I =6000
I =100 I =200
I =250 I =300
I =500
I =630
I =1000
I =1250I =1200
I =800
I =600
I =400
n
n
n
n n
n n
n n
n n
nn
n n
n
n
n
nn
n
n
n
Place label
here.
*Cover not shown for clarity.

3
Effective February 2022
Air circuit breakers with PXR trip units -
PXR rated current ( I
n) marking change
EATON www.eaton.com
Section 3: Additional information
Please contact Eaton with any questions:
Eaton
Electrical Group
1000 Cherrington Parkway
Moon Township, PA 15108
United States
877-ETN-CARE (877-386-2273)
Eaton.com

Eaton
1000 Eaton Boulevard
Cleveland, OH 44122
United States
Eaton.com
© 2022 Eaton
All Rights Reserved
Printed in USA
IL0131134ENH03/ TBG001574
February 2022
Eaton is a registered trademark.
All other trademarks are property
of their respective owners.
Air circuit breakers with PXR trip units -
PXR rated current ( I
n) marking change
Effective February 2022
Disclaimer of Warranties and Limitation of Liability
The information, recommendations, descriptions, and safety nota-
tions in this document are based on Eaton Corporation’s (“Eaton”)
experience and judgment, and may not cover all contingencies. If
further information is required, an Eaton sales office should be con-
sulted.
Sales of the product shown in this literature is subject to the terms
and conditions outlined in appropriate Eaton selling policies or other
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THERE ARE NO UNDERSTANDINGS, AGREEMENTS,
WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING
WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OF
MERCHANTABILITY, OTHER THAN THOSE SPECIFICALLY SET
OUT IN ANY EXISTING CONTRACT BETWEEN THE PARTIES.
ANY SUCH CONTRACT STATES THE ENTIRE OBLIGATION OF
EATON.THE CONTENTS OF THIS DOCUMENT SHALL NOT
BECOME PART OF OR MODIFY ANY CONTRACT BETWEEN THE
PARTIES.
In no event will Eaton be responsible to the purchaser or user in
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for any special, indirect, incidental, or consequential damage or loss
whatsoever, including but not limited to damage or loss of use of
equipment, plant or power system, cost of capital, loss of power,
additional expenses in use of existing power facilities, or claims
against the purchaser or user by its customers resulting from the
use of the information, recommendations, and descriptions con-
tained herein.
The information contained in this manual is subject to change with-
out notice.