Kessel Comfort 400V Mono Installation And Operating Manual page 36

4.5.2 Install ATEX sensors
4.5.2.1 Connecting ATEX float switch
Connect the ends of the float switch
cables to the terminals of the zener barrier
(see "Fig. 6: Float switches Mono ATEX ").
Connect the ends of the float switch cables to the terminals
of the zener barrier (see "Fig. 7: Float switches Duo ATEX").
Level sensor Mono/Duo ATEX
Connect the cable ends of the level sensor to the terminals
(see "Fig. 8: Pegelsonde ATEX"). The connection of level
sensors is identical for both Mono and Duo systems.
WARNING
Only connect level sensors to the Zener barrier,
which fulfil the ATEX requirement.
Wire colour Designation
Red (plus) 3
Black (minus) 4
Yellow-green PE
(equipotential
bonding)
Use KESSEL junction box (art. no. 28799) to lengthen the
connection cable of the level sensor.
36 / 140
Conversion float
switch to level
sensor
7
8
PE
Installation and operating manual
Fig. 6: Float switches Mono ATEX
Fig. 7: Float switches Duo ATEX
Fig. 8: Pegelsonde ATEX
010-532_13