Operation
EL691018 Version: 1.4.1
4.2.3.4 Installation on mounting rails
Mounting
The Bus Couplers and Bus Terminals are attached to commercially available 35mm mounting rails
(according to EN60715) by applying slight pressure:
Fig.5: Installation on the mounting rail
1. First attach the Fieldbus Coupler to the mounting rail.
2. The Bus Terminals are now attached on the right-hand side of the fieldbus Coupler. Join the compo-
nents with slot and key and push the terminals against the mounting rail, until the lock clicks onto the
mounting rail.
If the terminals are clipped onto the mounting rail first and then pushed together without slot and key,
the connection will not be operational! When correctly assembled, no significant gap should be visible
between the housings.
Note
Fastening of mounting rails
The locking mechanism of the terminals and couplers protrudes into the profile of the
mounting rail. When installing the components, make sure that the locking mechanism
doesn't come into conflict with the fixing bolts of the mounting rail. For fastening mounting
rails with a height of 7.5 mm under the terminals and couplers, use flat fastening compo-
nents such as countersunk head screws or blind rivets.
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