WEG UBW800H User Manual Download | Manualshive

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Motors | Automation | Energy | Transmission & Distribution | Coatings

WEG Molded Case Circuit

Breakers

UBW800

User’s Manual

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Summary of Contents for UBW800H

Page 1: ...Motors Automation Energy Transmission Distribution Coatings WEG Molded Case Circuit Breakers UBW800 User s Manual ...

Page 2: ... to the safety of personnel and equipment as well as all general and local health and safety laws codes and procedures The recommendations and information contained herein are based on WEG experience and judgment but should not be considered to be all inclusive or covering every application or circumstance which may arise If any questions arise contact WEG for further information or instructions 1...

Page 3: ...nd load conductors torquing terminals and attaching terminal shields Circuit breaker frames trip units rating plugs accessories mounting hardware and unmounted terminals may be supplied in separate packages To install the circuit breaker perform the following steps Internal accessory installation in any type of circuit breaker should be done before the circuit breaker is mounted and connected Refe...

Page 4: ...ion 4 After the trip unit and any internal accessories are installed and with the circuit breaker in the tripped position make sure that stationary interphase barriers are properly installed in the base Install main cover and secure with supplied pan head screws Eight screws are provided for the main cover torque to 20 22 Ib in 2 26 2 49 N m 5 If not already installed mount wire connecting termina...

Page 5: ...to be performed Special attention should be paid to reverse feed applications to ensure no voltage is present Note depending on the equipment configuration the circuit breaker can be mounted using different styles of hardware The following steps describe how to mount the circuit breaker using standard hardware When special hardware is needed for example with the motor operator the Instruction Leaf...

Page 6: ...74 65 1 375 34 93 250 20 M6 1 0 tap 4 holes Figure 4 3 pole mounting bolt drilling plan Line end Load end 0 250 6 35 1 719 43 66 3 438 87 33 2 and 3 pole circuit breaker Circuit breaker handle 7 281 184 94 3 641 92 48 R 188 4 78 1 500 38 10 2 292 58 22 1 325 33 66 3 281 83 34 Figure 5 3 pole cutout dimensions ...

Page 7: ...e for correct torque loading Torque values for line load terminals are given in Table 2 and on the circuit breaker nameplate 9 Install both the line and load terminal covers on the circuit breaker cover with mounting screws provided Torque to 20 22 Ib in 2 26 2 49 N m Terminal catalog No Terminal body material Screw head type Wire cable range Wire type Torque value lb in LT1A1 UBW700 Aluminum Sock...

Page 8: ...sition red for ON white for Tripped and green for OFF see Figure 6 ON ON TRIP OFF reset Handle position indicator color ON international OFF OFF TRIP Push to trip button Red White Green Figure 6 terminal installation 3 2 CIRCUIT BREAKER RESET After a trip operation moving the circuit breaker handle to the Reset extreme OFF position resets the circuit breaker Note in the event of a thermal overload...

Page 9: ...ears of almost maintenance free operation The following procedure describes how to do a limited amount of field inspection and testing of a circuit breaker 4 1 INSPECTION Circuit breakers in service should be inspected periodically The inspection should include the following checks 1 through 8 Warning The voltages indenergized equipment can cause severed personal injury or death Before inspecting ...

Page 10: ...ioration of electrical connections Check area where circuit breaker is installed for any safety hazards including personal safety and fire hazards and take required precautionary actions 5 FIELD TESTING Any field testing should be done in accordance with applicable NEMA Standard The instructions for installation testing maintenance or repair herein are provided for the use of the product in genera...

Page 11: ... contract in tort including negligence strict liability or otherwise 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 the use of existing power facilities or claims against the purchaser or user by its customers resulting from the ...

Page 12: ... Phone 233 30 2766490 info zestghana com gh INDIA Bangalore Karnataka Phone 91 80 41282007 info in weg net Hosur Tamil Nadu Phone 91 4344 301577 info in weg net ITALY Cinisello Balsamo Milano Phone 39 2 61293535 info it weg net JAPAN Yokohama Kanagawa Phone 81 45 5503030 info jp weg net MALAYSIA Shah Alam Selangor Phone 60 3 78591626 info wattdrive com my MEXICO Huehuetoca Mexico Phone 52 55 53214...

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