Hydraulic data

• Maximum operating pressure PN
  10 bar
• Delivery head for Qmin H _Qmin
  6.0
• Max. volume flow Q_max
  6.0
• Min. fluid temperature T_min
  2 °C
• Max. fluid temperature T_max
  65 °C
• Min. ambient temperature T_min
  0 °C
• Max. ambient temperature T_max
  40 °C
• Max. permitted total water hardness
  3.21 mmol/l (18°dH)

Motor data

• Mains connection
  1~230 V, 50 Hz
• Rated power P₂
  57.0 W
• Rated current I_N
  0.58 A
• Max. speed n_max
  2700 rpm
• Power consumption P_{1 max}
  147.0 W
• Emitted interference
  EN 61000-6-3
• Interference resistance
  EN 61000-6-2
• Protection class motor
  IP44
• Insulation class
  F
• Threaded cable connection
  1 x PG11
• Motor protection
  Not required (blocking-current proof)

Materials

• Impeller
  PPE-GF30
• Shaft
  Oxide ceramic
• Bearing
  Carbon-graphite

Installation dimensions

• Pipe connection on the suction side RPS
  G 1¼
• Pipe connection on the pressure side RPD
  G 1¼
• Port-to-port length l0
  150 mm

Information for order placements

• Brand
  Wilo
• Product description
  Star-Z 20/7-3
• EAN number
  4016322698067
• Article number
  4081203
• Net weight, approx. m
  3 kg
• Gross weight, approx. m
  2.9 kg
• Length with packaging
  147 mm
• Height with packaging
  100 mm
• Width with packaging
  187 mm
• Packaging property
  Sales packaging
• Packaging type
  Cardboard box
• Minimum order quantity
  1