EVCO EVB1256N9 - Manual (Page 13)

EVCO S.p.A. EVBOX1 | Installation guide ver. 1.2 | Code 144BOX1E124
page 13 of 88
3 DIMENSIONS AND INSTALLATION
3.1 Dimensions
The following drawing shows the measurements of the devices, in mm (in).
3.2 Installation
The unit is designed to be wall mounted, with bolts and fastening screws (not supplied).
To install the devices, proceed as follows (numbers in parentheses refer to the part number shown in the tables in chapter 2
"DESCRIPTION"):
1. Open the access door of the magneto-thermal switch or differential magneto-thermal circuit breaker (1) using the relevant
handle (4) and loosen the two screws fastening the front shell to the back shell (2) with a screwdriver.
2. remove the cover of the two screws fastening the front shell to the back shell (6) using the relevant handle (5) and loosen
the two screws fastening the front shell to the back shell (2) with a screwdriver.
3. Lift the front shell (16) using the assembly tabs fastening the front shell to the back shell (3) as a pivot.
4. Drill a hole with a diameter of 5.0 mm (0.196 in) in each of the three drilling leads for wall installation (34).
5. Drill three 6.0 mm (0.236 in) holes in the wall where the device is to be installed, using the three previously perforated
drilling leads (34) as template.
6. Insert three bolts in the three holes drilled into the wall.
7. Insert three seals (37) in three fastening screws.
8.1 If the connection wires are to be threaded from the top or the bottom, drill a hole in a flat surface of the back shell (17),
whose dimensions are adequate for a cable tray (not supplied; the cable tray dimensions must be appropriate to the
number of cables to be laid) and assemble the cable tray.
8.2 If the connection cables are to be installed from the back, drill a hole with dimensions appropriate to the number of cables
to be laid in the raised profile (36) on the back wall of the back shell (17) and apply some silicone on the whole profile.
9. Fasten the back shell (17) with the three screws and the seals (37) previously inserted in the screws.
10. make the necessary electric connections; please refer to chapter "ELECTRIC CONNECTION".
11. Place the front shell (16) on the back shell (17) using the assembly tabs fastening the front shell to the back shell (3) as a
pivot.
12. Tighten the four screws fastening the front shell to the back shell (2) with a screwdriver, put the fastening screws cover (6)
back on and close the access door to the magneto-thermal switch or differential magneto-thermal circuit breaker (1) with
the handle (4).