Rockwell Automation 1503 OEM Starter Frame Components Installation Manual - Manual (Page 26)

2-18 Component Installation
1503-IN050E-EN-P – June 2013
Perform the handle mechanism connection with the handle in the OFF
position. The isolation switch should be in the open position with the isola-
tion switch blades resting against the ground bar. Refer to Figure 2.16.
1) Lengthen or shorten the threaded connecting rod until it lines up with
the top hole on the isolation switch operating lever.
2) Insert a clevis pin through the holes and secure it with a cotter pin.
Complete all installation procedures before beginning
any adjustment procedures described in Chapter 3.
Connecting Contactor to
When properly connected, the contactor interlock in conjunction with the
Isolation Switch Handle
isolation switch handle mechanism, are designed to offer the following
safety features:
• prevent the isolation switch from being opened while the contactor is
closed and energized;
• prevent the contactor from closing if the isolation switch is in an
intermediate position (ie. at halfway point during adjustment);
• disengage the contactor if the isolation switch moved to the closed
position during a contactor test procedure.
Isolation Switch Operating Lever
Interlock Lever
Clevis
Contactor Interlock Rod
Contactor Operating Lever
Figure 2.17 – Contactor Interlock Rod Connection
Connecting Isolation Switch
to Isolation Switch Handle
(cont.)
I M P O R T A N T I M P O R T A N T