Grundfos ALPHA2 25-60 180 Circulator Pump


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Grundfos ALPHA2 25-60 180 Circulator Pump

P/N 99411175

High efficiency canned-rotor circulator, designed for circulating liquids in domestic heating systems. With a world-class energy efficiency index (EEI) well below the ErP benchmark it ensures substantial energy savings.


  • AUTOADAPT which provides the ultimate comfort levels with the lowest possible energy consumption and makes the commissioning safe and easy
  • Night-setback function which saves energy
  • Manual Summer mode saves energy during summertime and ensure safe start in the heating season
  • Intuitive one-button operation makes selection of any control mode simple
  • No external motor protection required reducing installation time
  • High-torque start improves startup under harsh conditions
  • Maintenance free due to canned-rotor design and use of robust components
  • ALPHA plug makes electrical installation quick and easy
  • Insulating shells are supplied with pumps to minimize heat loss in heating systems
  • Hydronic balancing by temporary use of the ALPHA Reader and the Grundfos GO Balance App enables the installer to perform fast and easy hydronic balancing

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Rated flow 1.94 m³/h
Rated head 3.28 m
Maximum head 60 dm
TF class 110
Model E


Pump housing Cast iron
EN 1561 EN-GJL-150
ASTM A48M-150B
Impeller Composite
PES 30% GF + PESU-GF20%


Range of ambient temperature 0 .. 40 °C
Maximum operating pressure 10 bar
Type of connection G
Size of connection 1 1/2 inch
Pressure rating for connection PN 10
Port-to-port length 180 mm


Pumped liquid Water
Liquid temperature range 2 .. 110 °C
Selected liquid temperature 60 °C
Density 983.2 kg/m³

Electrical data

Minimum power input - P1 3 W
Power input P1 34 W
Mains frequency 50 / 60 Hz
Rated voltage 1 x 230 V
Maximum current consumption 0.04 .. 0.32 A
Enclosure class (IEC 34-5) X4D
Insulation class (IEC 85) F
Built-in motor protection NONE
Thermal protec ELEC


Aut. night automatic reduced night-time duty included


Energy (EEI) 0.17
Terminal box position 6H
Net weight 2.01 kg
Gross weight 2.17 kg
Shipping volume 0.004 m³
Danish VVS No. 380473260
Swedish RSK No. 5758780
Finnish LVI No. 4615340
Norwegian NRF no. 9043152
Country of origin DK
Custom tariff no. 84137090622081967