WITA® Delta HE 100
1. декабря 2014
WITA® Delta HE 75
1. февраля 2015
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WITA® Delta HE 75 PWM


The WITA® High efficiency pumps can reduce energy consumption by up to 80% compared to a standard circulation pump, whilst maintaining the same level of hydraulic power.

Additional to the eleven different power curves which can be selected also at the Delta HE 75 without the PWM module, the PWM version also has four PWM stages. In these stages, the pump can be controlled with an external speed control. You can download the Delta HE 75 manual in our download area to find out more about the PWM function. The PWM control signal is also described in detail here. The LCD display shows the current power consumption, the selected characteristic curve and the night reduction.

Max. pump lift7,5 m
Max. flow rate7.850 l/h
Power consumption5 – 98 W
Control5 constant characteristics, 6 proportional characteristics, night mode, 4 externaly controllable PWM characteristics
Supply voltage1 x 230V, 50 Hz
Motor protectionNo external motor protection required
Ip ratingIP 42
Ambient temperature0 °C to +40 °C
Media temperature+5 °C to +110 °C
Temperature classTF 110 as per CEN 335-2-51
Max. system pressure10 bar
Connection sizeDN 25, DN 32
Installation lengths180 mm
Pump housing materialvariant in grey cast iron, cataphoresis coated
Weight incl. insulation3,2 kg
EEI≤ 0,23
 Special equipmentSpeed control with PWM control signal possible