WITA® Delta TOP 40 PWM
1. September 2016
1. November 2016
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WITA® Delta TOP 40


As a material, WITA® processes cataphoresis-coated armature castings and chromium-nickel steel. These proven materials guarantee high resistance and a versatile range of applications. All circulating pumps are supplied with heat insulation shells, seals, coupling plugs or permanently installed cables.

In an average household, 10 to 15% of the electricity consumption is caused by conventional standard pumps. Through the use of the WITA® high efficiency pumps the energy consumption can be compared to a conventional circulation pump. Approximately 80%.
The hydraulic power could be almost kept the same compared to standard pumps.

Special features / Product advantages

  • Highest efficiency through EC permanent magnet motor technology
  • From 3 Watt min. input
  • One-touch menu navigation
  • Pre-selectable control modes constant speed / variable differential pressure
  • Anti-block function
  • Integrated motor protection
  • High start-up safety
  • Simple pipe mounting through a practical key attachment


Nine different performancecurves can be selected by one-touch operation. In addition to the four characteristics which operate according to the proportional pressure method, four further can be selected with a constant characteristic curve. Additional, the pump has a minimum operating Level.

Max. pump lift 4,0 m
Max. flow rate 2.800 l/h
Power consumption 3 – 23 W
Control 4 constant characteristics, 4 proportional characteristics, minimum operating level
Supply voltage 1 x 230V, 50 Hz
Motor protection No external motor protection required
Ip rating IP 42
Ambient temperature 0 °C to +40 °C
Media temperature +5 °C to +110 °C
Temperature class TF 110 as per CEN 335-2-51
Max. system pressure 10 bar
Connection size DN 15, DN 20, DN 25, DN 32
Installation lengths 110 mm, 130 mm, 180 mm
Pump housing material 130 mm, 180 mm in variant in grey cast iron, cataphoresis coated;110 mm in brass
Weight incl. insulation 2,5 kg
EEI ≤ 0,18
 Special equipment  Also available with PWM module, Venting program, Keylock