38 New generation IZM97, 99 low voltage air circuit breaker instruction manual MN013010EN February 2020 www.eaton.com.cnSection 4: Accessory devicesSlide forwardLockHook foot1st switchmountingposition 3 rd switch mounting positionAuxiliary contactsMountingpanel2 rd switchmountingpositionSecondary wiringterminal block “A” Secondary wiringterminal block “B”Figure 2. Step 3Figure 3. Step 4Step 3: Move the lock of the switch to the “unlocked” posi-tion, and install the hook foot into the slot as shown. Slidethe auxiliary switch forward to make the hook foot fully fitinto the slot of the mounting panel. Move the lock to the“locked” position.ote:N The number of auxiliary switches and shunt trip devic-es should not exceed four.Step 4: Connect the auxiliary switch wires to the corre-sponding secondary terminals marked in Table 1.ote:N Bundle the wires and keep them away from movingparts.Table 1. Auxiliary switch secondary wiringsAuxiliary switch IZM97/IZM99 case#1 Terminal 50-60#2 Terminal 62-72#3 Terminal 74-84Step 5: Re-install the front cover by following the procedurein Step 1.Figure 1. Content of assembliesIZM9 low voltage circuit breaker latch check switch(LCS)WARNING(1) Only qualified electrical personnel should be permit-ted to work on the equipment.(2) Always de-energize primary and secondary circuitsif a circuit breaker cannot be removed to a safe worklocation.(3) Drawout circuit breakers should be levered (racked)out to the DISCONNECT position.(4) All circuit breakers should be switched to the OFFposition and mechanism springs discharged.Failure to follow these steps for all procedures describedin this instruction leaflet could result in death, bodilyinjury, or property damage.Section 1: General informationThe latch check switch (LCS) displays when the circuit break-er is “ready to close” (Figure 1). Connect the wires withinthe LCS to the closing coil. The LCS allows for the closingcoil to operate only when the circuit breaker is fully chargedand the trip latch is reset.Required tools:• 1/4-inch socket wrench• 10mm socketKit Parts IdentificationRefer to Figure 1 for details.LCS(internal configuration diagram)