3P Automatic backfeed system set


The set consists of the backup device with a 15 m sensor, 1/2" magnetic valve, 3P backup hopper, blocking valve and 1/2" hose.

Equipment for the control of the water level in a rainwater tank. If the rainwater supply is depleted at any time during a demand cycle or prior to a demand cycle, the system provides main water to fulfil the demand. The quantity is metered, so that only the water, which is used is being provided.

Technical Data

Signal part:

Dimensions B x H x T: 97 x 163 x 62 mm
Weight: 0.5 kg
Supply Voltage: AC 230 V 50 Hz
Input: max. 5 VA
Mains fuse: M 32 MA
Shockproof Socket:
AC 230 V, max. 10 A, cos >= 0,9
Protection: T 10 A
Temperature of the area of application:
0°C until+ 40°C
Protection class: II (DIN 57 700)
Protection category: IP 20 (EN 60529#9)
Radio is shielding: according to EN 50082-1
Stability: according to EN 50082-1
Filling Level Probe
Supply Voltage: AC 6 V

Filling Level Probe:

Supply Voltage: AC 6 V
Electricity of sensor: 1,2 MA
Dimensions (L x Ø): 87 x 30 mm
Fastening: through G1-connection
Weight: 0,2 kg
Functional princ.: Conductivity measurement
Medium: Potable water and rainwater

Hopper for feeding:

Feeding into the rainwater tank according to DIN consisting of:
Hopper for feeding DN50 with emergency overflow DN40 made of Polyethylen with connector for wall fastening.

Magnetic Valve:

Required space (B x H x T): 95 x 80 x100 mm
Weight: 0,5 kg
Supply Voltage: AC 230 V 50 Hz
Input: max. 5,5 VA
Connection circuit: 3 m
Installation position: optional
Medium: Potable water and rainwater
Rated pressure: 12 bar
Flow uses 4 bar primary pressure and free outlet: approx. 50 l/min
Function closed currently
Inlet: G 3/4"-Cap nut with filter mesh/seal
Outlet: G1/2"-Inside thread
Protection class: I (DIN 57 700)
Protection category: IP 65 (EN)
To prevent deposits on the magnetic valve in times of sufficient rainfall, the valve is opened 3 times a week for just one second and closed again. Signal part and sensor are connected pluggable through a circuit of 15 m. The magnetic valve is connected firmly to the signal part through a three-conductor power line (length of 3 m).

Connection to circuit of potable water:

1/2" hose with netting of stainless steel and blocking valve for the connection of the magnetic valve to the circuit of potable water.


Installation in a basement room

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