Automatic rainwater pump Wilo-Extract FIRST SE 304 EM/A. Discharge connection G 1 inch 6093858

Intelligent rainwater utilization with Wilo-Extract FIRST SE 304 EM/A

The Wilo-Extract FIRST SE 304 EM/A automatic rainwater pump is a solution for single-family and semi-detached houses, allowing for efficient use of rainwater for garden irrigation and powering household devices. The compact design allows installation even in places with limited space, and the integrated control facilitates start-up and provides automatic start-stop. It is an ideal choice for those looking for a reliable and economical way to save water.

Construction and functionality

The pump is designed for submersible installation at the bottom of the tank or for placement dry outside it. Made of high-quality stainless steel (grade 304 – 1.4301) and a polypropylene (PP-GF) impeller, it guarantees durability and corrosion resistance. Thermal motor protection and dry-running detection ensure safe and reliable operation. Additionally, the pump starts briefly every 24 hours to prevent impeller blockage – this simple solution minimizes the risk of failure. The connection cable with plug facilitates connection to the electrical network.

Performance and operating parameters

The Wilo-Extract FIRST SE 304 EM/A offers a maximum flow rate of 6.7 m³/h and a maximum head of 47.73 m. The motor power is 1 kW, and the rated voltage is 230 V at a frequency of 50 Hz. The pump is designed to operate at temperatures from 4°C to 40°C and has an IP68 protection class, which means complete resistance to immersion in water. The maximum sand content in the pumped water can be up to 20 g/m³, making it suitable even for rainwater of poorer quality. The pump diameter is 174 mm, and the length with the motor is 570 mm. The G 1 inch discharge connection ensures compatibility with most garden and household installations.