Eaton IZMX40 Montageanweisung Seite 2

Instruction Leaflet IL01301059E
effective September 2012
Section 1: General information
The mechanical interlock holds one of the breakers tripped (prevents
closure) when the other is closed. A lever assembly is mounted on
each breaker and interfaces with the pole shaft and tripper bar. The
lever assemblies are interconnected with cables. Cables can be
used for any orientation of the breakers, and are available in 5, 6, 8
and 10-foot lengths (1,5; 1,8; 2,4 and 3,0 m). Individual cable kits are
ordered separately.
Required tools
• 10 mm drive socket
• 11/16-inch open-end wrench
• 3/8-inch open-end wrench
• 3/8-inch drive socket
• 2 mm Allen wrench
• Drive extension
• Adjustable Wrench
• T15 TORX Driver
Kit Parts identification
Refer to Figure 1 for visual identification of the parts listed below:
(A) Trip Pin (2)
(B) M3 x 16 mm flat-head screw (2)
(C) M6 x 12 mm hex bolt
(D) Lock washer (8)
(E) Drive arm (2)
(F) M6 x 30 mm flat-head screw (2)
(G) Cable bracket (4)
(H) M6 x 10 mm thread-forming screws (4)
(I) Grease tube
(J) Interlock assembly (2)
(K) Cable assembly (2) – 5, 6, 8 and 10-foot lengths (1,5; 1,8; 2,4 and
3,0 m)
(L) Long spacer tube
2 EATON CORPORATION www.eaton.com
Installation and Removal Instructions
for Series NRX Drawout Breaker
Two-Way Cable Interlock Kit
(A)
(B)
(C)
(D)
(E)
(F)
(G)
(H)
(I)
Figure 1. Kit Contents
Section 2: Installation of two-way cable inter-
lock
Proceed with the following 9 steps:
Step 1. Remove the four screws (six for 4-pole breaker) holding the
cover in place. Pull down on the charging handle and remove the front
cover.
Step 2. Remove the three screws holding the levering device side
plate then remove the levering device side plates.
Figure 2. Steps 1 and 2
Step 3: Install the drive arm (E) to the end of the pole shaft using an
M6 x 30 mm flat-head screw (F). The drive arm should be oriented as
shown. Torque to 65-85 in-lbs (7 .3-9.6 Nm).
Step 4: Install the trip pin (A) to the trip arm using an M3 x 16
mm flat-head screw (B). Use a wrench to hold the trip lever during
installation. Torque to 3-5 in-lbs (0,3 - 0,6 Nm). Replace lev-in side plate
(Figure 5).
(K)
(L)
(J)