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Summary of Contents for WEG UBW600
- Page 1 Motors | Automation | Energy | Transmission & Distribution | Coatings WEG Molded Case Circuit Breakers UBW600 User’s Manual...
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Page 2: General Information
1. INTRODUCTION 1.1. GENERAL INFORMATION The UBW600 circuit breaker (Figure 1) are 600 V ac maximum rated devices with interchangeable thermal-magnetic trip units rated 600 A maximum continuous current. UBW600 circuit breakers are listed in accordance with Underwriters Laboratories, Inc. - Page 3 UBW600 5 to 10 500/600 2 to 8 Table 1: available trip unit ratings Notes: 1) For adjustable thermal trip units, the magnetic setting is a multiple of the maximum thermal setting. WEG Molded Case Circuit Breakers - User’s Manual...
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Page 4: Installation
To install the circuit breaker, perform the following steps. Note: UBW600 circuit breakers are factory sealed for reverse feed applications under UL 489. U Lrequires that internal accessories be installedat the factory in these types of circuit breakers. - Page 5 For dead front cover applications, cut out cover to correct escutcheon dimensions, see Figure 4. b. If circuit breaker includes factory or field installed internal accessories, make sure accessory wiring is accessible when the circuit breaker is mounted. WEG Molded Case Circuit Breakers - User’s Manual...
- Page 6 Labels with accessory connection schematic diagrams are provided on the side of the circuit breaker. c. Position circuit breaker on mounting surface. d. Install circuit breaker mounting screws and washers. Tighten screws firmly, but do not exceed 28 Ib-in (3 N.m). WEG Molded Case Circuit Breakers - User’s Manual...
- Page 7 Table 2: terminal types Notes: 1) Sold in 3-poles kits only. 10. When step-type terminals (Cat. No. LT3D UBW600 or LT3D UBW400) are used, terminal shields (supplied with terminals) must be installed on the circuit breaker (Figure 5) and secured using retainer and screws included with the terminal shield kit.
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Page 8: Manual Operation
OFF (see Figure 6). Handle position International symbols indicator Color: White - TRIP Green - OFF (reset) TRIP Magnetic Push-to-trip adjustment button button Thermal- (3 places) magnetic trip unit Figure 6: circuit breaker manual controls WEG Molded Case Circuit Breakers - User’s Manual... - Page 9 Figure 7: trip unit magnetic adjustment buttons 4. INSPECTION AND FIELD TESTING UBW600 molded case circuit breakers are designed to provide years of almost maintenance-free operation. The following procedure describes how to do a limited amount of field inspection and testing of a circuit breaker.
- Page 10 7. Exposure to certain types of chemical scan cause deterioration 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. WEG Molded Case Circuit Breakers - User’s Manual...
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Page 11: Field Testing
ARE MADE REGARDING THE INFORMATION, RECOMMENDATIONS, AND DESCRIPTIONS CONTAINED HEREIN. In no event will WEG be responsible to the purchaser or user in 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... - Page 12 Changzhou – Jiangsu Phone: +86 519 88067692 info-cn@weg.net For those countries where there is not a WEG own operation, find our local distributor at www.weg.net. WEG Group - Automation Business Unit Jaraguá do Sul - SC - Brazil 55 (47) 3276-4000 Phone: + automacao@weg.net...
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