Freedom 2100 Motor Control Center Installation - emsco

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28 I.B. 8926-1A Time of Service Contact Appearance New The new contact has a uniform silver color. Start of Service The contact surface will have a blue coloring. The geometric form of the contact is unchanged. The sharp outer corners will be rounded with small silver beads. (See Figure 39). Intermediate Service to End of Service Life CONTACT EVALUATION The coloring changes to brown or black with distributed small silvery white areas. The surface has a finely chiselled appearance. Material transfer causes small peaks and valleys in the contact button surface. (See Figure 40). Contact Appearance Cause Curling and Separation of Corner of Contact Irregular Contour or Slantwise Wear Large Beads of Silver On Edges of Contacts Welded Spot (Core of Smooth, Shining Silver Surrounded by a Roughened Halo) RENEWAL PARTS ABNORMAL WEAR CONDITIONS Curling is usually a result of service that produces very high heat, as under jogging or inching duty. One corner of a contact may wear more quickly than the other three corners. This wear is normally due to misalignment of the moving and stationary contacts. Contacts should be replaced if it is apparent that one contact is nearly making direct contact with the contact carrier. Breaking an excessive current. Making an excessive current. High frequency of operation, i.e., jogging. When ordering renewal control center parts, give the complete nameplate reading. Always give the name of the part wanted, the part, catalog or style number of the individual apparatus on which it is to be used, and the order number of the complete motor control center. <strong>Control</strong> <strong>Center</strong> renewal parts identified by part or style number are detailed in Cutler-Hammer Renewal Parts Data. The nomenclature to identify these parts is shown in Figures 2 and 41. The most common renewal parts for components are shown in Table10-1.
29 I.B. 8926-1A TABLE 10-1 RENEWAL CONTACT KITS, COILS & OVERLOAD RELAYS NEMA SIZE 1 NEMA SIZE 2 NEMA SIZE 3 NEMA SIZE 4 NEMA SIZE 5 Description Series B1 Series B1 Series B1 Part No. Part No. Part No. Part No. Part No. Renewal Parts Publ. CONTACT KITS 22177 22177 20426 20428 20429 2 Pole………………………… 6-65 6-65-7 6-43-5 6-44 6-45 3 Pole………………………… 6-65-2 6-65-8 6-43-6 6-44-2 6-45-2 4 Pole………………………… 6-65-9 6-65-15 --------- --------- --------- 5 Pole………………………… 6-65-10 6-65-16 --------- --------- --------- MAGNET COILS Coil Suffix 120V 60 Hz or 110V 50 Hz A 9-2703-1 9-2703-1 9-2756-1 9-1891-1 9-1891-1 240V 60 Hz or 220V 50 Hz B 9-2703-2 9-2703-2 9-2756-2 9-1891-2 9-1891-2 480V 60 Hz or 440V 50 Hz C 9-2703-3 9-2703-3 9-2756-3 9-1891-3 9-1891-3 600V 60 Hz or 550V 50 Hz D 9-2703-4 9-2703-4 9-2756-4 9-1891-4 9-1891-4 208V 60 Hz……………….. E 9-2703-9 9-2703-9 9-2756-5 9-1891-13 9-1891-13 277V 60 Hz……………….. H 9-2703-7 9-2703-7 9-2756-9 9-1891-26 9-1891-26 208/240V 60 Hz………….. J ------------ ------------ ------------ ------------ ------------ 240V 50 Hz……………….. K 9-2703-14 9-2703-14 9-2756-13 9-1891-20 9-1891-20 380-415V 50 Hz………….. L 9-2703-8 9-2703-8 ------------ ------------ ------------ 380V 50 Hz……………….. L ------------ ------------ 9-2756-12 9-1891-14 9-1891-14 415V 50 Hz……………….. M ------------ ------------ 9-2756-8 9-1891-21 9-1891-21 550V 50 Hz……………….. N ------------ ------------ 9-2756-14 9-1891-8 9-1891-8 OVERLOAD RELAYS For replacement on existing starters 3 Pole - Ambient Compensated Bimetallic…… STARTER TYPE C306GN3B C306GN3B Disconnect Means: Description Full Voltage, Non-Reversing Full Voltage, Reversing Reduced Voltage, Autotransformer Type Reduced Voltage, Part Winding Type Reduced Voltage, Closed Transition Star-Delta Full Voltage, Non-Reversing, 2 Speed, 2 Windings Full Voltage, Non-Reversing, 2 Speed, 1 Winding C306KN3 C306NN3 C306DN3B Unit Catalog Number Designation (Class) Fusible Circuit Breaker Circuit Breaker With Current Limiter F204 F206 F207 F214 F216 F217 F604 F606 F607 F704 F706 F707 F894 F896 F897 F954 F956 F957 F944 F946 F947
Page 1 and 2: Cutler-Hammer I.B. 8926-1A Model A
Page 3 and 4: 3 I.B. 8926-1A (7) Top & Side Cover
Page 5 and 6: 5 I.B. 8926-1A Figure 3 Correct Use
Page 7 and 8: 7 I.B. 8926-1A access to the bolts,
Page 9 and 10: 9 I.B. 8926-1A Fig. 10 Six and Eigh
Page 11 and 12: 11 I.B. 8926-1A mounted on the rear
Page 13 and 14: 13 I.B. 8926-1A When the MCC has a
Page 15 and 16: 15 I.B. 8926-1A CURRENT TRANSFORMER
Page 17 and 18: 17 I.B. 8926-1A TO REMOVE HEATER PA
Page 19 and 20: 19 I.B. 8926-1A 1. Before energizin
Page 21 and 22: 21 I.B. 8926-1A DETENT POSITION For
Page 23 and 24: 23 I.B. 8926-1A PREVENTIVE MAINTENA
Page 25 and 26: 25 I.B. 8926-1A To provide for padl
Page 27: 27 I.B. 8926-1A ✝ Reproduced by p
Page 31 and 32: 31 I.B. 8926-1A Part 11 PLAN VIEWS
Page 33 and 34: 33 I.B. 8926-1A 20 Inches Wide, 21

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