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Instructional Leaflet 

IL0131187EN

Effective June 2022

Installation and removal instructions 

for IZM series fixed breaker 

three-way Type 32 cable interlock kit  

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

IZMX16

IZMX-MIL32C-F16-1 

IZMX-MIL32C-W16-1

IZMX40

IZMX-MIL32C-F40-1 

IZMX-MIL32C-W40-1 

IZM63/IZM32

IZMX-MIL32C-F63-1

IZMX-MIL32C-W63-1

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

a

Cable kit length

Catalogue number

1,5 m (5 ft)

IZMX-MIL-CAB1520-1

1,8 m (6 ft)

IZMX-MIL-CAB1830-1

2,4 m (8 ft)

IZMX-MIL-CAB2440-1

3,0 m (10 ft)

IZMX-MIL-CAB3050-1

Cable kits are purchased separately as needed.

Figure 2. Interlock kit part identification, includes parts to install on a single fixed IZM frame breaker and cassette  

(does not include cables)

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

(E)

Interlock 

assembly 

1x

(F)

Grease tube 

1x

(A)

M6 x 12 mm  

hex bolt 

4x

(B)

M6 x 25 mm 

flathead screw 

1x

(C)

Lock 

washer 

6x

(D)

Drive arm 

1x

(H)

M6 x 10 mm 

thread-forming 

screws 

2x

(G)

Cable bracket 

1x

41,3 mm (1,625 inch) 

cable tube spacer 

1x

(M)

(L)

M6 x 20 mm  

thread hex bolt 

2x

(K)

M6 fender 

washer 

2x

M6 square nut 

3x

(J)

Fixed mounting plate 

1x

(I)

(P)

(O)

(N)

(P)  

Pre-installed on 

long rod end

(O)  

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

Summary of Contents for IZM Series

Page 1: ...d removal instructions for IZM series fixed breaker three way Type 32 cable interlock kit Contents Description Page General information 2 Installation of cable interlock assembly 4 Functional test of...

Page 2: ...talling and interconnecting one fixed IZM breaker to another type of low voltage circuit breaker LVCB in any position see A B C in Table 1 for a Type 32 interlock configuration as shown in Figure 1 Wh...

Page 3: ...IL CAB3050 1 a Cable kits are purchased separately as needed Figure 2 Interlock kit part identification includes parts to install on a single fixed IZM frame breaker and cassette does not include cabl...

Page 4: ...ch and a small hammer to carefully punch out the window Once the window is removed use a small file to remove any burrs that remain Make certain that all pieces and or particles are cleaned up and rem...

Page 5: ...to which the open slots in the top of the mounting plate will slide Now insert the mounting bracket slots onto the upper bolts and rotate the bracket down against the side of the breaker Make sure tha...

Page 6: ...THE CABLES WILL BE ATTACHED IN DIFFERENT LOCATIONS THE CABLE MOUNTING ON BOTH POINTS OF THE DRIVE AND DRIVEN LEVERS ARE DESCRIBED BELOW TABLE 4 SHOWS THE TYPE 32 INTERLOCK LOGIC DEPENDING ON POSITION...

Page 7: ...nter the threaded section of the bulkhead fitting on the cable mounting bracket 9 Hand tighten the bulkhead nuts at this time 10 Slide rubber boot back into place over end of bulkhead fitting 11 Repla...

Page 8: ...the cables are connected The driven long rod end of the cable is attached to the correspond ing push or pull swivel fitting on the driven lever on this cable inter lock assembly similarly to Step 7 ex...

Page 9: ...ts to 11 13 N m 100 120 in lb without mov ing the bulkhead fittings After the driven end has been adjusted and the bulkhead nuts have been tightened perform adjustments on the drive short rod end of t...

Page 10: ...d able to CLOSE one at a 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 t...

Page 11: ...11 Instructional Leaflet IL0131187EN Effective June 2022 Installation and removal instructions for IZM series fixed breaker three wayType 32 cable interlock kit EATON www eaton com...

Page 12: ...ng policies or other contractual agreement between Eaton and the purchaser THERE ARE NO UNDERSTANDINGS AGREEMENTS WARRANTIES EXPRESSED OR IMPLIED INCLUDING WARRANTIES OF FITNESS FOR A PARTICULAR PURPO...

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