Fagor NATUR-2428 1N Wilo Yonos circulator pump for MSL12/6B PWM1 W MC Ref. 4527860
The 4527860 is the Wilo Yonos circulator pump for MSL12/6B PWM1 W MC. It circulates water through the boiler circuit and operates at 1~230 V, with a power of 3-41 W. It is verified for the Fagor NATUR-2428 1N. It is sold refurbished, tested, and comes with a 1-year warranty.
- Type of part
- Pumps
- Status
- Refurbished
- internal SKU
- BOM065
- Warranty
- 1 year
VAT included Stock · 3 units
Compatible Fagor boilers
Circulating pump. A proven compatibility: NATUR-2428 1N.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Fagor NATUR-2428 1N | Fagor | Contrasted |
Can't see your model or have questions? The printed reference takes precedence. How to check it · Send us a photo via WhatsApp.
How to check if it is the part for your boiler
The part reference, model, and equipment revision must be verified against the manufacturer's documentation.
- With the boiler powered off, locate the label on your pump and look for the model Yonos PARA MSL12/6B PWM1 W MC and the reference 4527860. This unit also has 16W07 and 1603766 marked, as well as PHA33 on a plastic subcomponent.
- Compare the data on the label: 1~230 V, 50/60 Hz, 3-41 W, 0.36 A, IPX4D, PN6, and TF95.
- Compare the complete reference, not just the model name: 4528240, 4528414, and the Fondital variants 6CIRCNEW04 and 6CIRCECO05 have the same or similar name, but they are different references.
- Check on the boiler's PCB that it is a Fagor NATUR-2428 1N, the verified model.
- Compare the appearance and the connector with the photos: black hydraulic body and gray electronic module with the Wilo logo. If anything does not match, or your boiler is different, call us at 911 17 77 77 with the model of the boiler and a photo of the label.
Technical sheet: Fagor circulator pump
- Uniclima internal SKU
- BOM065
- Brand
- Fagor
- Type of part
- Pumps
- Units in stock
- 3 units
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- Return
- 14 days
Part data and available documentation
Contrast the label codes, PCB, and revision with the installed part; they are not necessarily equivalent references.
- Reference
- 4527860
- Brand
- Wilo
- Model
- Yonos FOR MSL12/6B PWM1 W MC
- Type
- Circulating pump
- Voltage
- 1~230 V
- Frequency
- 50/60 Hz
- Power
- 3-41 W
- Current
- 0.36 A
- Degree of protection
- IPX4D
- Nominal pressure
- PN6
- Thermal class
- TF95
- Energy Efficiency Index (EEI)
- ≤ 0.21 (Part 3)
- Other marked codes
- 16W07 and 1603766 (label); PHA33 (plastic subcomponent)
- Verified boiler
- Fagor NATUR-2428 1N
- Status
- Refurbished, tested, 1-year warranty
Before purchasing
- Do not confuse with 4528240: Wilo pump with the same model name (Yonos PARA MSL12/6B-PWM1 W MC) and a different article number. Compare the reference, not just the name.
- Do not confuse with 4528414: Yonos FOR MSL12/6B PWM1 W MC 12 FONDITA, another Wilo article number. It is not 4527860.
- Do not confuse with 6CIRCNEW04: Fondital pump with wiring and another designation (Wilo Para INT MSL/6-43/IPWM1/E). Another variant, with a different number.
- Do not confuse with 6CIRCECO05: Fondital code for a Yonos circulator FOR MSL12/6B, without PWM1 W MC in its designation. Compare reference 4527860 and the complete model.
Frequently asked questions about the circulation pump
Where is the pump code and which one should I compare?
The label of the pump shows the model Yonos PARA MSL12/6B PWM1 W MC and the reference 4527860. This unit also indicates 16W07 and 1603766, and PHA33 on a plastic subcomponent. Compare the reference and the complete model, as well as the electrical data: 1~230 V, 50/60 Hz, 3-41 W, and 0.36 A.
Is it compatible with my Fagor NATUR-2428 1N?
Yes. It is verified for the Fagor NATUR-2428 1N. Confirm the exact model on the PCB of your boiler before ordering it.
Is it compatible with a boiler other than the NATUR-2428 1N?
For now, it is only verified for the Fagor NATUR-2428 1N. If your boiler is different, call us at 911 17 77 77 or send us a photo of your pump label and the boiler's PCB from the Contact section.
Is it the same as 4528240, 4528414, or Fondital 6CIRCNEW04?
No. The 4528240 and 4528414 are other Wilo article numbers with the same or very similar model name. The 6CIRCNEW04 is a Fondital pump with wiring and another designation (For INT MSL/6-43/IPWM1/E). Always compare with reference 4527860.
What power and protection are marked?
Brand 3-41 W, 0.36 A, 1~230 V at 50/60 Hz, IPX4D protection, nominal pressure PN6, and thermal class TF95, with an efficiency index (EEI) ≤ 0.21 (Part 3). Compare these values with those of your original pump.
Is it sold tested and with a warranty?
Yes. It is a refurbished pump, tested and with a 1-year warranty.
Who should install it?
A qualified technician: the pump operates at 230 V and is part of the water circuit of the boiler. Before installing it, compare the connector of your pump with the one in the photos.