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TNS020 · LIQUID LEVEL CONTROL FOR WELL OR TANK

TNS020 level relay for well or tank: filling or emptying with 3 probes. 230/400 VAC, 1 x SPDT 8A, adjustable sensitivity, 11-pin socket.

Product type:	Conductive probe level relay
Installation:	Plug-in relay on 11-pin socket
Function:	Filling or emptying of well or tank
Probes:	3: maximum, minimum and common

Features

Supply

230 / 400 VAC

Output

1 x SPDT 8A

Sensitivity

50 – 150 kΩ

Connection

11-pin socket

1Three probes are installed: the common one is the longest; the minimum and maximum probes set the working band.
2Filling (output 1-4): the pump starts when the water drops below the minimum probe and stops when it reaches the maximum probe.
3Emptying (output 1-3): the pump starts when the water reaches the maximum probe and stops at the minimum probe.
4Between the two levels the output does not change: no continuous pump starts.

Can it be used for filling and for emptying?

Yes. Output 1-4 is used to fill a tank and output 1-3 to empty a well. The probe wiring is the same.

Which probes does it need?

A set of 3 conductive probes: maximum, minimum and common. For example, the SNP003 set.

Which socket does it use?

An 11-pin socket: the ZB11-0 for DIN rail or the TBEU1E in-line socket.

Reference	TNS020 (230 / 400 VAC)
Series	T · plug-in relay
Product type	Conductive probe level relay
Function	Filling or emptying of well or tank
Liquids	Conductive, non-flammable and non-explosive

Supply	230 / 400 VAC · 50/60 Hz
Output	1 x SPDT 8A 250 VAC

Sensitivity	Adjustable from 50 to 150 kΩ
Inputs	Maximum, minimum and common

LEDs	Probe and output status

Format	90 × 80 × 36 mm
Connection	11-pin socket: ZB11-0 (DIN rail) or TBEU1E (in-line)
Material	Grey polycarbonate UL94-V0
Weight	≈ 170 g

Operating temperature	−10 to +55 °C
Storage temperature	−25 to +85 °C

Compliance

CE · 2014/35/EU · 2014/30/EU

ZB11-0 · 11-pin socket for DIN rail · TBEU1E · 11-pin in-line socket