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3. INSTALLATION
The unit is mounted via 2 off Ø9mm fixing holes in the U-shaped stirrup/mounting bracket. If required, the unit can be
initially placed via the Ø13mm central hole in the stirrup. The unit can then be rotated to the required position and fixed
via the other holes.
If ordered with the unit, a swivel mounting bracket option is available to allow further rotational adjustment to the unit.
The fixing holes have been designed to accept an M8 screw or bolt.
The drilling of field wiring threaded entries is not permitted .
Access to Terminals
The cover is secured with 6 off M5 cover screws (4.0mm A/F hexagon key). Once the cover fixings are unscrewed, the
cover can be lifted away from the enclosure to gain access to the interior. The cover fixings are captive and will remain in
the cover.
It is intended that the conductors used for supply and earth connections of the unit shall be 2.5mm². For supply
connections be aware that cable temperature rise may be up to 30K (20K for 8W units)
Once termination is complete, carefully replace the cover assembly back onto the body, avoiding damage to the mating
surfaces. For aluminium alloy units, the enclosure/cover joints must be cleaned before replacing the cover. Tighten
the cover screws evenly. Ensure the O-ring is seated correctly on the cover during re-assembly. Ensure the required
maximum gap of 0.025mm is maintained between the cover and the base once assembled. To maintain the IP rating of
the unit, the recommended torque on the cover screws is 3.0Nm.
Wiring details
DB4BM STANDARD WIRING
DB4BM 8Ohm wiring
WARNING
For standard units, connect power connections to
numbered terminals to obtain the required power tapping
(See section 4 for tapping table).
For loop-out connections, use second set of numbered
terminals.
For direct connection 8Ohm units, connect the power
from the amplifier to the terminals as detailed, taking note
of the maximum loudspeaker rating.
Use second pair of terminals for loop-out connections as
required.
DB4BM LOUDSPEAKER TECHNICAL MANUAL
DB4BM LOUDSPEAKER TECHNICAL MANUAL
Eaton MEDC technical manual
Eaton MEDC technical manual
TM277.3
TM277.3
www.eaton.com
www.eaton.com
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