170 3.3 Warning / control units

230 V Comfort control unit

Mono-/Duo control unit with conductance probe

Catalogue EN 4.1

For Mono versions

Art. no.

With conductance probe / conductance probe

28 731 LL

For Duo versions

Art. no.

With conductance probe / conductance probe,

ON 1 fixed/ON 2 variable

28 746 LLF

With conductance probe / conductance probe,

ON 1 variable / ON 2 fixed

28 746 LLV

For Mono versions

Art. no.

Without ATEX version

28 755

28 756

28 781

With ATEX version

28 759

28 761

For Duo versions

Art. no.

Without ATEX version

28 757

28 758

28 783

With ATEX version

28 762

28 763

KESSEL AG

Mono-/Duo control unit

Sensor system for level measurement for

wastewater without sewage. Including alarm

level measurement. Not suitable for rainwater

or non-diluted condensate. Including conduct-

ance probes for the measuring of ON 1, ON

2 (28 746-LLF / 28746-LLV only), OFF and

ALARM level. Switching points cannot be

adjusted freely. 5 m cable for conductance

probe.

Versions:

• with conductance probe/conductance probe:

Level ON / OFF fixed, alarm level can be

adjusted

• with conductance probe/conductance probe:

ON 1 fixed / ON 2 variable / ALARM with fixed

distance to ON 2

• with conductance probe/conductance probe:

ON 1 variable / ON 2 fixed / ALARM with fixed

distance to ON 2

400 V Comfort control unit

Mono-/Duo control units

Versions:

• Mono-/Duo control unit

Illustration shows

Art. no. 28 746 LLF

Illustration shows

Art. no. 28 731 LL

Illustration shows

Art. no. 28 755

max. switching current (A) from - to

2.5 – 4.0

4.0 – 6.3

6.3 – 10.0

2.5 – 4.0

4.0 – 6.3

max. switching current (A) from - to

2×2.5 – 4.0

2×4.0 – 6.3

2×6.3 – 10.0

2×2.5 – 4.0

2×4.0 – 6.3