DEX & DBX Installation, Maintenance and User Instructions V1.05 Page 10 August / 2014
Load shedding relay (Model DEX only)
If further 3-phase appliances are connected, a load
shedding relay (IN82250) can be connected to phase
conductor L2. (3-phase models only).
A special operating mode must be selected on
the appliance by pressing the four function keys
simultaneously until the required mode (0, 1 or 2) is
shown on the display then releasing the keys.
First select mode 1 to check correct operation of the
load shedding relay at low appliance output (35° set
1. Remove inner and outer insulation from the
connecting cable to the lengths shown in Fig 7.
2. With the smaller opening foremost, slide the
water splash protection sleeve over the
with the wall. This prevents any water leaks
from coming into contact with the electrical
leads. The protection sleeve must be
used and free from damage.
3. Open the control panel to the right.
4. Fit the connecting cables into the terminal
block according to the wiring diagrams on
page 9. Ensure all connections are fully
tightened and secure.
5. The appliance must be earthed.
6. Pull the protection sleeve over the connecting
intermediate panel.
7. Close the control panel.
Note: If required, the terminal block can be
re-positioned in the upper part of the appliance. In
this case the instructions in the following
section should be followed.
Mode Description
0
Normal operation,
manufacturer’s
setting.
1
Operation with
normal load
shedding relay.
2
Operation with
sensitive load
shedding relay.
Fig 7
Electrical connection from below
WARNING
Check that the power supply is switched off prior to electrical connection!
Fig 8
(3-phase model shown)
(3-phase wiring)
(single-phase wiring)
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