Phoenix Contact 2700290, User Manual, Page: 15 / 154

Mounting and installation
8089_en_03 PHOENIX CONTACT
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2 Mounting and installation
2.1 Mounting and removing the SMN
Mount the SMN on a clean DIN rail according to DIN EN 50022 (e.g., NS 35 ... from Phoenix
Contact). To avoid contact resistance, only use clean, corrosion-free DIN rails. End brack-
ets (E/NS 35N, Order No. 0800886) can be mounted to the right and left of the SMN to stop
the modules from slipping on the DIN rail.
Mounting:
1 Place the module onto the DIN rail from above (1). The upper holding keyway of the
module must be hooked onto the top edge of the DIN rail. Push the module from the
front towards the mounting surface (2).
Figure 2-1 Snapping the SMN onto the DIN rail
2 Once the module has been snapped on properly, check that it is fixed securely on the
DIN rail. Check whether the positive latch is facing upwards, i.e., snapped on correctly.
Removal:
1 Pull down the positive latch using a suitable tool (e.g., screwdriver). Then swivel the
bottom of the module away from the DIN rail slightly (1). Next, lift the module upwards
away from the DIN rail (2).
Figure 2-2 Removing the SMN
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