MEDC DB4B Manuel Technique page 5

DB4B Ex d WIRING WITH OPTIONAL CAP AND/OR
PPTC
Ex d units:
Connect 100V line connections to terminals marked 'line' on PCB, looping-out as required. Use supplied flying lead
along with common loop-in, loop-out connections to select required power level (see section 4 for tapping table)
Ex de units:
Connect 100V line connections to terminals 1 and 2 (loop-in, loop-out). If loop-in, loop-out functionality is required,
the two common leads must be joined together using a single crimped bootlace ferrule. Use the supplied flying lead
along with the common lead to select required power level (see section 4 for tapping table)
4.0 OPERATION
The line voltage and power rating of the unit is stated on the unit label. The speaker is available in 3 standard
power ratings from 8 watts to 25 watts and in Ex d or Ex de versions. Different sound levels can be obtained by
selecting the transformer tappings in the unit. See table below for details.
Alternatively if requested when ordered, the unit can be supplied with a direct 8Ohm connection to the driver for
connecting to a suitable audio source.
© Eaton MEDC Ltd 2017
All manuals and user guides at all-guides.com
DB4B Ex de WIRING WITH OPTIONAL CAP AND/OR
Power (W)
Transformer
Tappings
25W
1:2 25.0
2:3 12.5
3:4 6.0
1:3 4.0
2:4 2.0
1:4 1.0
PPTC
.
15W 8W
15.0 8.0
7.5 4.0
5.0 2.0
4.0 1.5
2.0 0.7
0.8 0.4
.
06/17