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, 1 ph, 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
- 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 gals 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
- Stainless flange with terminal box
| Voltage Rating | 115 VAC |
|---|---|
| Power Rating | 5 to 45 W |
| Maximum Pressure | 145.04 psi |
| Type | High-Efficiency |
| Amperage Rating | 0.1 to 0.65 A |
| Phase | 1 ph |
| Inlet Size | 15 mm |
| Temperature Rating | 32 to 104 deg F Ambient |
| Dimensions | 3.82 in W x 6.38 in D x 6.5 in H |
| Series | Alpha 1 |
| Mounting Type | Surface |
| Impeller Type | Composite |
| Outlet Size | 15 mm |
| Flow Rate | 21 gpm |
| Enclosure Type | IP42 |
| Frequency Rating | 60 Hz |
| Brand | Grundfos |
