micro controle – automação eletrónica


Level control box for well – QN QEF

Since (without VAT): 92.00

Level Control box for wells and artesian holes

Shipping is only available for Continental Portugal Shipping and its respective Autonomous Regions: Azores and Madeira.

Product description

Level Control box used for control and protection of submersible water electric pumps used in the supply of pressurized water and in irrigation systems.


Control of water level in artesian holes or tanks

Electro-pump protection against lack of water in the hole or well

Protection against short-circuits by a circuit breaker – 16A

Protection against overloads by an overload relay – IP54 IK07


Make the connections with the switch on (off).

Thermal adjustment according to the rated motor current.

Switch the switch to automatic (aut).

After contacting the P11 and P12 contacts, the contactor will arm when the water level reaches the upper level probe (green LED N.A. – high level), turns off when the contact pair P11 and P12 open, or if the level of Water goes down in addition to the lower level probe (it clears the green led – low level).

If the control circuit switch is in the manual (manu) position, the pump switches on regardless of the control status of the contact pair P11 and P12 and the level condition.

In case of tripping of the thermal relay (overload), the pump switches off (red LED D.T. on the level relay), regardless of the information provided by any of the other controls.

Note: The images shown may not correspond completely to the product described.

Additional information

Weight N/A
Dimensions N/A
Thermal regulation

1,6 – 2,5 A, 2,5 – 4,0 A, 4,0 – 6,0 A, 5,5 – 8,0 A, 7,0 – 10,0 A, 9,0 – 13,0 A


230V, 400V

Gray ABS case

195x257x147mm ABS box with hinges and cristal polycarbonate IP54 IK07

Level relay

trademark micro controle, for lack of water protection

Contactor, overload relay and a circuit breaker

requested trademark

3 positions toggle switch

with rubber cap for controlling Automatic (AUT), Manual (MAN) or Off (OFF) mode system

Start/Stop remote control connection

(P11-P12) (pressure-switch, float-switch or other)

Accessories / Others

Pressure switch, buoy or others; 4 cable glands for connection cables


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