Cable Entries; Mounting The Multiload Ii/ Rcu Ii Div-2 Enclosure; Metal Plate Or Rail; Wood - Toptech MultiLoad II EXL Installation Manual

CHAPTER 3– INSTALLING THE MULTILOAD II/RCUII EXL

Cable Entries

Five M20 x 1.5 mm apertures in the enclosure bottom are provided for the installation of cable glands.
A gland with the correct corresponding thread must be installed in the opening.
WARNING: If there are unused holes, blanking elements satisfying the flameproof "d" method
of protection must be used. Blanking elements must be removable with the aid of a tool, ATEX
certified, suitable for Gas Group IIB and suitable for an ambient temperature range of -40 C to
+60 C.

Mounting the MultiLoad II/ RCU II DIV-2 Enclosure

The EXL enclosure should be located in a shaded area. Direct sunlight can increase internal
temperature to greater than 140°F or 60°C.
Exterior dimensions of the standard MultiLoad II/ RCU II Explosion Proof Lite (EXL) enclosure are
shown in Figures 2.2 – 2.5. There is only one mounting orientation possible as shown in Figure 2.2.
Five M20x 1.5 mm cable entries are located at the bottom of the unit.
Appropriate fasteners must be selected to support the minimum weight of 33 lbs. (15 kg). Toptech
offers the following mounting suggestions for three typical surfaces: metal, wood, or concrete/solid
block.

Metal Plate or Rail

Use four hex head 3/8" OD (M10) bolts with a 3/8" flat washer, 3/4" OD (M10, 20mm OD) under the head of
the bolt. Tighten with four 3/8" (M10) hex nuts.

Wood

Use four hex head 2" x 3/8" OD (M10 x 50 mm) lag bolts with a 3/8" flat washer, 3/4" OD (M10, 20 mm OD)
under the head of the bolt. Or, you may drill through holes in the wood and assemble as with the metal plate
using four hex head 3/8" OD (M10) bolts with a 3/8" flat washer, 3/4" OD (M10, 20 mm OD) under the head
of the bolt. Tighten with four 3/8" (M10) hex nuts

Concrete or Cinder Block Walls

Use four Sleeve, Bolt and Stud Anchors, Hex Nut 3/8"OD, 2 1/4"long or a metric equivalent.

Mounting Height Considerations

When mounting the enclosure, be aware of the limitations that the cover places on screen visibility.
Because the display is inset about an inch [25mm] from the surface of EXL and SMP units and the
screen is inset an inch-and-one-half [39mm] in the EXL unit, the enclosure should be mounted so that
top of the screen's visible area is at eye level of the tallest operator. Figure 3.1 shows the visible area
at arm's length and the distance from the ground to the top mounting hole location for a six foot [1.8m]
tall user. Figure 3.2 shows the offset of the top of the screen's visible area from the top mounting bolt
and the depth of the screen within the unit.
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MultiLoad II/ RCU II Explosion Proof Lite (EXL) Installation Guide - Part # 6070
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