2
Series NRX PT module installation and
operation instructions
EATON
www.eaton.com
Instruction Leaflet
IL01301074E
Effective July 2016
ote:
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The content of this IL applies to both PXR and Digitrip equipped breakers.
Appearance of product may vary.
Section 1. Description
The Potential Transformer (PT) module is a device used to supply a
three phase voltage signal to series NRX NF-frame or RF-frame circuit
breakers equipped with Digitrip 1150 or PXR programmable trip units.
Specifications:
The output of the module is directly proportional to the input voltage
according to the ratio given below (Table 1).
Table 1. Voltage ratios.
INPUT
OUTPUT (NORMAL)
208V L-L
1.95V L-N
240V L-L
2.25V L-N
415V L-L
3.89V L-N
440V L-L
4.13V L-N
480V L-L
4.50V L-N
600V L-L
5.63V L-N
690V L-L
6.47V L-N
• Maximum rated input voltage: 690 volts line to line
• Burden: 1 VA per phase
• Output voltage accuracy: +/-2% of normal
Figure 1.
5.716 (145.19)
4.406 (111.91)
FACE OF DIN RAIL
.755 (19.18)
2.896 (73.56)
.755 (19.18)
Dimensions of PT module.
•
WARNING
DO NOT ATTEMPT TO INSTALL OR PERFORM MAINTENANCE ON EQUIPMENT
WHILE IT IS ENERGIZED. DEATH OR SEVERE PERSONAL INJURY CAN
RESULT FROM CONTACT WITH ENERGIZED EQUIPMENT. ALWAYS VERIFY
THAT NO VOLTAGE IS PRESENT BEFORE PROCEEDING. ALWAYS FOLLOW
SAFETY PROCEDURES. EATON IS NOT LIABLE FOR THE MISAPPLICATION OR
MISINSTALLATION OF ITS PRODUCTS.
•
WARNING
OBSERVE ALL RECOMMENDATIONS, NOTES, CAUTIONS, AND WARNINGS
RELATING TO THE SAFETY OF PERSONNEL AND EQUIPMENT. OBSERVE
AND COMPLY WITH ALL GENERAL AND LOCAL HEALTH AND SAFETY LAWS,
CODES, AND PROCEDURES.
ote:
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The recommendations and information contained herein are based on
experience and judgment, but should not be considered to be all-inclusive or to
cover every application or circumstance that may arise.
