Wilo SB 04-15 Domestic Hot Water Circulator 230 V
19410
The Wilo SB 04-15 is a small domestic hot-water circulating pump for the return loop of a geyser or boiler system. Mounted on the return leg after the taps, it gives instant hot water at the tap and stops water being run to waste. Brass body, ø15 (½”) ports, ultra-quiet.
Overstock special: 81 available at a reduced price while stock lasts.
Applications
- Faster circulation in domestic hot-water distribution systems (loops up to about 35 m of pipe, 1–10 tapping points)
- Solar circuits and small industrial systems
Features
- Brass pump body, composite impeller, stainless steel rotor shaft and sleeve, graphite bushes
- Ultra-silent, scale-resistant design
- Quick electrical connection: wide cable opening, clearly marked Earth–Live–Neutral terminals for up to 2.5 mm²
- Easy to dismantle for cleaning
Specifications
| Parameter | Value |
|---|---|
| Brand | Wilo (Thermo range) |
| Item code | 4099843 |
| Model | SB 04-15 |
| Type | Domestic hot-water circulator |
| Mains connection | 1~230 V, 50 Hz |
| Speed | 2600 rpm |
| Max. flow | 0.45 m³/h |
| Max. head | 1.1 m |
| Max. operating pressure | 10 bar |
| Min. suction pressure | 0.2 bar at 65 °C |
| Temperature range | 0 … 95 °C |
| Max. ambient temperature | 40 °C |
| Ports | ø15 (½”) |
| Insulation class | F |
| Conformity | NF EN 60335-2-51, CE |
Dimensions & Weight
| Parameter | Value |
|---|---|
| Port-to-port length | 124 mm |
| Shipping mass (approx.) | 2.0 kg |
Data from the Thermo range brochure (N.T. 123-4). Specifications may change without notice.
Get help choosing the right hot-water circulator
Overstock special – limited quantities at a reduced price while stock lasts. Send us your borehole depth, water level and daily water need and we will confirm the right pump, motor and cable.