Pump set with frequency converter. The frequency converter helps to regulate the pump speed and thus reduces its wear. In addition, it saves electricity consumption.

TWI 5-308 EM pump

Submersible, multistage and self-venting pump Wilo TWI 5-308 EM in a completely stainless steel design resistant to corrosion. It can be used for pumping water from tanks, reservoirs or wells. The installation should be above the bottom of the tank, but it is possible to install the pump even half-surfaced or completely out of the water. The delivery also includes a 20 m long cable with a polypropylene safety cable.

Pump properties

• 230 V power supply
• cable with a length of 20 meters
• ACS- & WRAS certificate
• trigger cable included
• cooled electric motor
• immersion depth up to 17 m
• built-in motor overload protection incl. automatic reset

ElectronicControl MM9 frequency converter

Water-cooled frequency converter with integrated pressure and flow monitor for pump speed control. The inverter controls and monitors a constant, preset pressure level.
If the pressure in the system drops by a preset difference in pressure values compared to the set pressure, the MM9 inverter switches on the pump . When the pump returns to the set pressure value, the inverter switches it off after a certain time interval.