Category : Instrumentations for fluid management, control and transfer (gas and liquids) > Level sensors, detection & measurement

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NR 5/Ex
-for level control or for signalling a limit level
Alternative supply voltages (terminals 15 + 16):
- AC 230 V (delivered if no other supply voltage is specified in the order) or
- AC 240 V or
- AC 24 V

Power input: approx. 3 VA
Electrode circuit (terminals 1,6,7): 3 terminals (safety extra low voltage SELV) acting
on 1 relay with self-hold
- no-load voltage: 3 V eff AC square wave voltage 10 Hz (safety extra low voltage SELV)
- short-circuit current: max. 0.5 mA eff
Controlled circuit (terminals 9,10,11): 1 single-pole potential-free changeover contact
with self-hold
Principle: quiescent current principle
Switching status indicators:
- 1 green LED lights when relay is energised
- 1 red LED lights when relay is not energised

Power input approx. 3 VA
Response sensitivity approx. 30 kOhm
Response sensitivity (electric conductance) approx. 33 µS
Switching voltage AC max. 250 V
Switching current AC max. 4 A
Switching capacity AC max. 500 VA
Housing insulating material, 75 x 55 x 110 mm
Connection: terminals on top of housing
Protection class: IP 20
Mounting: clip attachment for U-bar to DIN 46 277
and DIN EN 50 022 or fastening via two boreholes

Mounting orientation any
Temperature resistance - 20° C to + 60° C

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List of all articles in this sub-category Level sensors, detection & measurement

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