Eaton Digitrip OPTIM 550 KEP3125T52 Installation Instructions Manual Download | Manualshive

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I.L. 29C507

Page 8

Effective 5/00

7.0 REFERENCES

7.1 SERIES C K-FRAME MOLDED CASE CIRCUIT
BREAKERS

29C104

Frame Instruction Leaflet

AD 29-167K

Typical Time-Current Characteristic
curves for K-Frame Breakers

7.2 INTERNAL ACCESSORIES

The following types of internal accessories, which mount
on the trip unit, are available for use. The number of the
instruction leaflet covering the installation of each
accessory is shown.

•  Alarm (Signal)/Lockout (ASL) Switch  . . . .I.L. 29C182
•  Auxiliary Switch  . . . . . . . . . . . . . . . . . . . . .I.L. 29C122
•  Shunt Trip  . . . . . . . . . . . . . . . . . . . . . . . . .I.L. 29C144
•  Low Energy Shunt Trip  . . . . . . . . . . . . . . .I.L. 29C145
•  Undervoltage Release Mechanism

(HandleReset . . . . . . . . . . . . . . . . . . . . . .l.L. 29C166

Figure 5-3 Connections for Ground Fault No-Trip Test,
with a Three-Wire System

Low
Voltage
Source

Source

L C R

Current Limiting
Resistor
(if required)

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Summary of Contents for Digitrip OPTIM 550 KEP3125T52

Page 1: ...MMER IS NOT LIABLE FOR THE MISAPPLICATION OR MISINSTALLATION OF ITS PRODUCTS The user is cautioned to observe all recommendations warnings and cautions relating to the safety of person nel and equipment as well as all general and local health and safety laws codes and procedures WARNING The recommendations and information contained herein are based on Cutler Hammer experience and judge ment but sh...

Page 2: ...s a thermal magnetic trip unit should be used The Digitrip OPTIM 550 Trip Unit for the K Frame is available in 3 different types and two different maximum ampere ratings Table 1 1 Ground Fault Alarm trip units do NOT provide ground fault protection 2 0 UL LISTED DEVICES The Digitrip OPTIM 550 Trip Unit is listed in accordance with Underwriters Laboratories Inc Standard UL489 under file E7819 and s...

Page 3: ... diagram in Figure 3 4 It has the same turns ratio as the phase current sensors in the trip unit I L 29C507 Page 3 Effective 5 00 Do not connect the neutral current sensor secondary output to ground Connecting the secondary output to ground may cause damage to the trip unit The polarity of the sensor connections is critical Always observe the polarity markings on the instal lation drawings The pol...

Page 4: ...dle to the ON position Circuit break er handle should remain at the ON position Press Push to trip button to check the manual tripping of the circuit breaker NOTICE Max Amps In Catalog Number of trip unit 125A 63A ORPK125A063 125A 070A ORPK125A070 125A 090A ORPK125A090 125A 100A ORPK125A100 125A 110A ORPK125A110 125A 125A ORPK125A125 250A 125A ORPK025A125 250A 150A ORPK025A150 250A 160A ORPK025A16...

Page 5: ...udes a microcom puter to perform its numeric and logic functions In the Digitrip OPTIM 550 Trip Unit all required sensing and tripping power to operate its protection function is derived from the current sensors in the circuit breaker The secondary currents from these sensors provide the correct input information for the protection functions as well as tripping power whenever the circuit breaker i...

Page 6: ... illustrated in Figure 5 4 are shipped with each Digitrip OPTIM 550 Trip Unit 5 2 3 GENERAL TEST INSTRUCTIONS The interconnected system shall be evaluated in accor dance with the equipment assembler s detailed instruc tions by qualified personnel The polarity of the neutral sensor connections if used must agree with equipment assembler s detailed instruc tions to avoid improper operations followin...

Page 7: ...ated in Figure 3 5 is used to establish the continuous ampere rating of the related cir cuit breaker The Long Delay protection function of the trip unit is set at the rating plug value In The Short Delay and Instantaneous protection functions are set as a multiple of In The Ground Fault protection function is indepen dent of In Different rating plugs are available to match the desired current rati...

Page 8: ...ies which mount on the trip unit are available for use The number of the instruction leaflet covering the installation of each accessory is shown Alarm Signal Lockout ASL Switch I L 29C182 Auxiliary Switch I L 29C122 Shunt Trip I L 29C144 Low Energy Shunt Trip I L 29C145 Undervoltage Release Mechanism HandleReset l L 29C166 Figure 5 3 Connections for Ground Fault No Trip Test with a Three Wire Sys...

Page 9: ...Ground Fault Test Record should be Retained by Those in Charge of the Building s Electrical Installation in order to be Available to the Authority having Jurisdiction Test Date Circuit Breaker Number Results Tested By Figure 5 4 Typical Performance Test Record Form ...

Page 10: ...Cutler Hammer Pittsburgh Pennsylvania U S A Effective 5 00 ISI Style 6602C55H01 Printed in U S A Page 10 I L 29C507 ...

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