Finder Level Control Monitoring Relay, 72 Series

Finder Brand: Finder

A wide range of Finder Monitoring Relays from the 72 Series. These Level Control Relays are for measuring Conductive Liquids. The level control relays work by measuring the resistance through the liquid, between the common (B3) electrode and Min. and Max. electrodes (B2 and B1). If the tank is metallic, then this can be substituted as the B3 electrode.

Care must be taken to ensure that the liquid has a suitable resistivity. Suitable liquids include city water, well water, rainwater, sea water, liquids with low-percentage alcohol, wine, milk, beer, coffee, sewage and liquid fertilizer. Unsuitable liquids include fuels, liquid gas and paint.

This range also includes a Priority Change Relay. This special relay is for alternating loads, for applications with pumps, compressors, air conditioning or refrigeration units.

  • Emptying or filling functions
  • LED indicator
  • Control about a single level or between Min./Max. limits
  • 35mm DIN rail (EN 60715) mountable
  • 72.01 Available in DC option
  • 72.01 Available in 24 and 230V options
  • 72.42 Available in 24 and 230V options
  • Probe for conductive liquids available in 6 and 15m options
Description Image Product Buy Pricing (Ex VAT) Type Contact Configuration Depth Contact Dimensions Contacts Max. permitted operate delay time Min. adjustable operate delay time Number of contacts as change-over contact Number of contacts as normally open contact Number of inputs for electrodes Operating Voltage (AC) Output Current Physical measurement principle Rated control supply voltage AC 50 Hz Rated control supply voltage AC 60 Hz Rated control supply voltage DC Response value sensitivity adjustable Temperature Range Voltage type for actuating
Finder 72.01.8.024.0000 10A Level Control Monitoring Relay SPDT-CO 24VAC
Finder 72.01.8.024.0000 10A Level Control Monitoring Relay SPDT-CO 24VAC
Standard range
Order code: 50-7727
MPN: 72.01.8.024.0000

36 in stock, despatched in 4 working days
1+ £60.50
Price per unit Ex VAT 		Level control monitoring relay 1CO 54.6mm 84 x 35 x 58mm 7s 0.5s 1 0 3 24V 16A Conductive 24 - 24 24 - 24 true -20 to +60°C AC
Finder 72.01.8.240.0000 10A Level Control Monitoring Relay SPDT-CO 240VAC
Finder 72.01.8.240.0000 10A Level Control Monitoring Relay SPDT-CO 240VAC
Standard range
Order code: 50-7726
MPN: 72.01.8.240.0000

8 in stock, despatched same dayAdditional quantity lead time 10 weeks
1+ £58.21
Price per unit Ex VAT 		Level control monitoring relay 1CO 54.6mm SPDT-CO 84 x 35 x 58mm SPDT-CO 7s 0.5s 1 0 3 240V 16A Conductive 240 - 240 240 - 240 true -20 to +60°C AC
Finder 72.42.0.230.0000 Priority Change Relay 12A 230V
Finder 72.42.0.230.0000 Priority Change Relay 12A 230V
Standard range
Order code: 49-3613
MPN: 72.42.0.230.0000

10 in stock, despatched in 4 working days
1+ £72.25
Price per unit Ex VAT 		Priority change relay 2NO 56.5mm 84 x 35 x 54.6mm 20s 0.2s 0 2 0 250 to 400V 12/20A N/A 110 - 240 110 - 240 110 - 240 false -20 to +50°C AC/DC
Model72.01 72.42
Order code50-7727 /50-7726/ 50-772849-3612/ 49-3613
Contact configuration1 CO (SPDT)2 NO (2 DPST-NO)
Rated current/Maximum peak current 16/30A12/20A
Rated voltage/Maximum switching voltage 250/400V AC250 / 400V AC
Rated load AC1 4000VA3000VA
Rated load AC15 (230 V AC) 750VA1000VA
Single phase motor rating (230 V AC) 0.55kW0.55kW
Breaking capacity DC1: 30/110/220 16/0.3/ 0.12VA12 / 0.3/ 0.12VA
Minimum switching load 500mW (10/ 5V/mA)300mW (5/ 5V/mA)
Standard contact materialAgCdOAgNi
Nominal voltage (UN) V AC24V DC or 240V AC 24V DC or 240V AC


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