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Wilo-Star-RS 25/6

Pump curves
Dimension drawing

Motor horizontal

Terminal box positions for 3, 6, 9 and 12 o'clock possible

Wiring diagram

Blocking current-proof motor

Single-phase motor (EM) 2‐pole ‐ 1~230 V, 50 Hz

With built-in capacitor

Approved fluids (other fluids on request)
Heating water (in accordance with VDI 2035)
Water-glycol mixtures (max. 1:1; above 20% admixture, the pumping data must be checked)
Permitted field of application
Temperature range at max. ambient temperature +40 °C -10...+110 °C
Maximum permissible operating pressure Pmax 10 bar
Pipe connections
Threaded pipe union Rp 1
Thread G 1½
Overall length L0 180 mm
Motor/electronics
Electromagnetic compatibility EN 61800-3
Emitted interference EN 61000-6-3
Interference resistance EN 61000-6-2
Speed control
Protection class IP 44
Insulation class F
Mains connection 1~230 V, 50 Hz
Speed n 2480 / 2750 / 2840 rpm
Power consumption P1 43 / 61 / 84 W
Current consumption I 0.20 / 0.28 / 0.36 A
Motor protection Not required (blocking-current proof)
Threaded cable connection PG 1x11
Materials
Pump housing Grey cast iron (EN-GJL-200)
Impeller Plastic (PP - 40% GF)
Pump shaft Stainless steel (X40Cr13)
Bearing Carbon, metal impregnated
Minimum suction head at suction port for avoiding cavitation at water pumping temperature
Minimum suction head at 50 / 95 / 110 °C 0.5 / 3 / 10 m
Information for order placements
Make Wilo
Art no. 4032956
Type Star-RS 25/6
Weight approx. m 3 kg

Version ...RG with pump housing made of red brass

Version ...L with connection for quick aspirator


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