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FET-OR Module Mounting and Installation
The FET-OR redundancy module can be snapped onto all DIN-rails according to EN 60715 (units are supplied with universal
snap-on foot for DIN-rails). The module should be mounted horizontally, connecting terminal blocks on top and bottom, with
input terminal blocks facing upwards. The following figure displays the default mounting and removal position for the
redundancy module.
FET-OR Module
PF20A
PF40A
PF80A
To ensure sufficient convection, adhere to the following guidelines for distance between the FET-OR module and other
modules.
Mounting Position
Vertical
Lateral
406
GEH-6855_Vol_II
FET-OR Module Mounting and Removal Position
FET-OR Module Installation Depth
Mounting Position and Installation Depth
Normal: 125 mm (4.92 in) (+ DIN-rail) (state at delivery)
Rotated with 270° Y-axis: 35 mm (1.38 in) (+ DIN-rail)
Normal: 125 mm (4.92 in) (+ DIN-rail) (state at delivery)
Rotated with 270° Y-axis: 41 mm (1.61 in) (+ DIN-rail)
Normal: 125 mm (4.92 in) (+ DIN-rail) (state at delivery)
Rotated with 270° Y-axis: 69 mm (2.71 in) (+ DIN-rail)
FET-OR Module Convection Specifications
Minimum Distance Between Modules
50 mm (2.0 in)
5 mm (0.20 in), 15 mm (0.60 in) between active components
GEH-6855_Vol_II Mark VIeS Functional Safety Systems Volume II
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