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Instruction Leaflet 

IL0131080EN

Effective January 2019

3-way multi-family drawout cable interlock kit - type 32 - NF 

  

  

EATON

 www.eaton.com

Table 2.  Interlock assembly kits for interconnected breakers

Interconnected  

breaker

Interlock assembly kit 

for fixed breaker

Interlock assembly kit 

for drawout breaker

RF frame 

IZMX-MIL32C-F16-2

IZMX-MIL32C-W16-2

NF frame 

IZMX-MIL32C-F40-2

IZMX-MIL32C-W40-2

Magnum IZM97 or IZM99

IZM-MCI32-F

IZM-MCI32-W

Magnum DST or SB

MCI3W32FX

MCI3W32DO

Table 3.  Interconnecting cable kits (two cables per kit) 

a

Cable kit length

Catalogue number

1,5 m (5 ft)

IZMX-MIL-CAB1520-2

1,8 m (6 ft)

IZMX-MIL-CAB1830-2

2,4 m (8 ft)

IZMX-MIL-CAB2440-2

3,0 m (10 ft)

IZMX-MIL-CAB3050-2

Cable kits are purchased separately as needed.

(A)

(B)

(C)

(D)

(E)

(F)

(H)

(G)

(I)

M3 x 8 mm 

flathead screw 

2x

Lock 

washer 

3x

M6 x 12 mm  

hex bolt 

3x

Interlock 

assembly 

1x

Trip pin 

1x

Grease tube 

1x

Cable bracket 

4x

M6 x 10 mm 

thread-forming 

screws 

4x

30,5 mm (1,2 inch) 

cable tube spacer 

1x

Drive arm 

1x

(J)

Figure 2. Interlock kit part identification, includes parts to install on a single drawout Type NF frame breaker and cassette  

(does not include cables)

(M)

(L)

(K)

(M)  

Pre-installed on 

long rod end

(L)  

Pre-installed on  

short rod end

Cable assembly (see 

Table 3

2x

38,1 mm (1,5 in) 

cable tube spacer,  

one pre-installed on each 

cable assembly and 

two shipped loose 

4x

22,2 mm (0,875 in) 

cable tube spacer, one 

pre-installed on each 

cable assembly 

2x

Figure 3. Interconnecting cable kit part identification (includes cables)

Summary of Contents for Power Defense 32-NF

Page 1: ...NRX IZMX Power Defense Contents Description Page General information 2 Installation of three way cable interlock 4 Functional test of interlock assembly 9 3 way multi family drawout cable interlock ki...

Page 2: ...AL AND OR ELECTRICAL INTERLOCK TO PREVENT SIMULTANEOUS CLOSING COMMANDS BEING SENT TO BOTH OF THE NORMAL SUPPLY SWITCHING DEVICES A AND C AND THE TIE SWITCHING DEVICE B UNDER ALL CONDITIONS General in...

Page 3: ...IZMX MIL CAB2440 2 3 0 m 10 ft IZMX MIL CAB3050 2 a Cable kits are purchased separately as needed A B C D E F H G I M3 x 8 mm flathead screw 2x Lock washer 3x M6 x 12 mm hex bolt 3x Interlock assembl...

Page 4: ...The drive arm should be oriented as shown in Figure 4 and Figure 5 Torque to 0 3 0 6 N m 3 5 in lb Step 2 Install the trip pin F to the trip bar using an M3 x 8 mm flathead screw C while holding the...

Page 5: ...s refer to Figure 10 For example a cable connected to the Drive Lever Pull Swivel Fitting on Breaker A must connect to the Driven Lever Pull Swivel Fitting on Breaker B ATTENTION FIGURE 9 SHOWS THE TY...

Page 6: ...gure 10 follow the directions below see Figure 11 1 Remove upper nut from end of rod of cable assembly 2 Slide rubber boot toward tip of rod 3 Unthread outer bulkhead nut and slide nut and lock washer...

Page 7: ...rive lever Compression spring Swivel fitting Lower nuts Stop at end of thread Raise cable assembly until threaded portion of bulkhead fitting enters slotted hole in cable bracket threads show above br...

Page 8: ...0 2 mm Figure 13 Driven And lever position with interconnected push breaker open and pull breaker closed Lever plate Gap 0 4 mm Connected breaker open Gap Connected breaker closed Figure 14 Driven An...

Page 9: ...end long rod Bulkhead Rubber boot Outer bulkhead nut Lock washers 2 Pull swivel Upper nut 22 2 mm 0 875 inch cable tube spacer Lower nuts Driven And lever Pull swivel Upper nut 30 5 mm 1 2 inch cable...

Page 10: ...time OPEN Breaker C CHARGE and CLOSE Breakers A and B Breaker C should be interlocked held OPEN not able to CLOSE CHARGE and attempt to CLOSE Breaker C it should not respond to CLOSE attempt no noise...

Page 11: ...agreement between Eaton and the purchaser THERE ARE NO UNDERSTANDINGS AGREEMENTS WARRANTIES EXPRESSED OR IMPLIED INCLUDING WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY OTHER THAN...

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