Grundfos

Grundfos 99287256 Alpha 1 High-Efficiency Variable-Speed Circulator, 21 gpm, 15 mm x 15 mm, 115 VAC

GRU99287256 MFG #: 99287256
Grundfos 99287256 Alpha 1 High-Efficiency Variable-Speed Circulator, 21 gpm, 15 mm x 15 mm, 115 VAC
  • Flow Rate: 21 gpm
  • Inlet Size: 15 mm
  • Outlet Size: 15 mm
  • Voltage Rating: 115 VAC
  • Amperage Rating: 0.1 to 0.65 A
  • Dimensions: 3.82 in W x 6.38 in D x 6.5 in H
  • Enclosure Type: IP42
  • Frequency Rating: 60 Hz
  • Impeller Type: Composite
  • Manufacturer: Grundfos
  • Manufacturer #: 99287256
  • Maximum Pressure: 145.04 psi
  • Motor HP: 1/16 HP
  • Mounting Type: Surface
  • Power Rating: 5 to 45 W
  • Series: Alpha 1
The ALPHA1 is an energy efficient, variable-speed circulator built with reliable, electronically controlled Grundfos permanent magnet motor (ECM) technology. Featuring three-constant pressure control modes, an LED display and easy-to-use push button controls, the ALPHA1 is the perfect solution for domestic hydronic heating and hot water recirculation applications.

Grundfos Variable-Speed Circulator, High-Efficiency, Series: Alpha 1, 21 gpm, 15 mm Inlet, 15 mm Outlet, 5 to 45 W, 115 VAC, 0.1 to 0.65 A, 60 Hz, 145.04 psi Maximum, Composite Impeller, Surface Mount, 32 to 104 deg F Ambient, IP42, 3.82 in W x 6.38 in D x 6.5 in H
  • Features
  • Includes
  • Product Videos
  • ALPHA1 can replace more than 30 other pump models
  • ALPHA1 features the highest torque rating and most powerful start feature in its class which attempts to restart indefinitely every seven seconds in blocked rotor conditions
  • Designed with trusted Grundfos ECM (permanent magnet motor) technology which has been used by Grundfos for more than 15 years
  • ALPHA1 features three-constant pressure control modes with easy to use push button settings
  • Large LED display shows energy watt consumption and flow indicator in gallons per minute
  • ALPHA1 is compatible with either a line cord or terminal box for conduit connections
  • Extremely quiet 19.2 dB(A) operation - Tested in one of the best European sound labs
  • ALPHA1 features an integrated check-valve and nut captures for flanges
  • Magnetite resistant design with a stainless-steel bearing plate, robust ceramic shaft and ceramic bearing rings
  • Cast iron flange with terminal box
1 ph ECM Permanent Magnet Motor