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2
INM MTL SUM5 Rev 1
1.2
The MTL SUM5 range of modules concept
The MTL4 range of modules and its accessories represent a simpler, general purpose
approach to what used to be a more complex, tailored method of choosing individual
isolating interfaces to suit the circuit type. The simplicity arises from the use of a
‘universal’ isolator that is mounted in a base chosen to suit the field wiring type, i.e.
hazardous-area or safe-area (general purpose).
This new approach incorporates loop-disconnects and pluggable surge protection
without any additional wiring. This not only reduces cabinet space, but dramatically
reduces the number of hand-wired connections, thus removing many possible points of
failure. Secondly, it drastically reduces spares inventory by the use of a single universal
isolator interface for inputs, outputs, analogue or digital circuits.
The main module carrier can be chosen for general purpose screw-terminal connections
or to suit the interfaces of existing control system manufacturers. Diagnostics and
configuration control can be carried out remotely, significantly reducing installation and
maintenance down-time.
2
MTL SUM5 RANGE DESCRIPTION
Figure 2.1
- UI module and base configurations
Refer to the diagrams for further details
Module on IS base
UIO Module
IS base
Module on IS base + surge module
Loop
disconnect
IS power
jumper link
Field
wiring
terminals
Tag strip
holder
Surge
module