Eaton NRX Series Instruction Leaflet
Installation and removal instructions for fixed breaker three-way type 32 cable interlock kit
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Also See for NRX Series:
- Installation instructions manual (68 pages) ,
- User manual (48 pages) ,
- Instruction leaflet (29 pages)
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Instruction Leaflet IL0131075EN
Installation and removal instructions
for Series NRX RF fixed breaker
three-way Type 32 cable interlock kit
Instructions apply to:
Series NRXT, Type RF frame, IEC, IZMX40
Effective August 2015
Contents
Description
General information . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation of three-way cable interlock . . . . . . . . 4
Functional test of interlock assembly . . . . . . . . . 10
Page
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Summary of Contents for Eaton NRX Series
- Page 1 Instruction Leaflet IL0131075EN Effective August 2015 Installation and removal instructions for Series NRX RF fixed breaker three-way Type 32 cable interlock kit Contents Description Page General information . . . . . . . . . . . . . . . . . . . . . . . . 2 Installation of three-way cable interlock .
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Page 2: General Information
(listed in Table 3) that are compatible with this interlock kit . The cable kits, purchased separately, each contain two cables and can be used for any orientation of the breakers according to the installation recommendations in Step 9 . EATON www.eaton.com... - Page 3 38,1 mm (1,5 in) Cable assembly (see Table 3) cable tube spacer, one cable tube spacer, pre-installed on each one pre-installed on each cable assembly cable assembly and two shipped loose Figure 3. Interconnecting cable kit part identification (includes cables) EATON www.eaton.com...
- Page 4 Remove and retain the upper right M5 x 12 mm screw from the fixed breaker mounting foot (ref . IL01301076E) as shown in Figure 4 . Figure 6. Details for Steps 3 and 4 Figure 4. Details for Steps 1 and 2 EATON www.eaton.com...
- Page 5 TABLE 4 SHOWS THE TYPE 32 INTERLOCK LOGIC DEPENDING ON POSITION. Interlock assembly (A) Trip pin trip paddle With all circuit breakers OPEN, the paddle is positioned above the trip pin as shown . Figure 8. Details for Step 6 EATON www.eaton.com...
- Page 6 . after installation and adjustment 13. Hold lower nuts and torque upper nut to 3,3–4,5 N·m Do not compress cable housing • (30–40 in-lb) . Recheck to ensure cables move freely • EATON www.eaton.com...
- Page 7 5. Slide smaller diameter portion of bulkhead fitting into cable bracket slot, keeping one of the two lock washers with each 12. Hold lower nuts and torque upper nut to 3,3–4,5 N·m bulkhead nut . (30–40 in-lb) . EATON www.eaton.com...
- Page 8 Lever plate 0 mm 0–14 mm Connected breaker open Figure 13. Driven “And” lever position with interconnected Connected breakers open breaker closed Figure 16. Driven “And” lever position with interconnected breakers closed EATON www.eaton.com...
- Page 9 (long rod) Lower nuts Lower nuts Lower nuts Rubber boot Outer bulkhead nut Lock washers (2) Bulkhead Figure 17. Details for Step 11: driven (long rod) end mounting component identification and Step 12 driven (long rod) end after adjustments EATON www.eaton.com...
- Page 10 • The mechanical interlock is now properly installed and adjusted . Use a light amount of supplied lubricant (I) if any interlock parts are sticky or do not fully reset . This is only recommended if needed . EATON www.eaton.com...
- Page 11 Instruction Leaflet IL0131075EN Installation and removal instructions Series NRX RF fixed breaker Effective August 2015 three-way Type 32 cable interlock kit EATON www.eaton.com...
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Page 12: Installation And Removal Instructions
THIS DOCUMENT SHALL NOT BECOME PART OF OR MODIFY ANY CONTRACT BETWEEN THE PARTIES . In no event will Eaton 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...