If you’re searching for a reliable replacement for the discontinued Belimo EP050R+MP actuator, you’re not alone. Many HVAC professionals and facility managers are looking to use the advanced Belimo EP050R2+BAC-N model for both retrofit and new projects.
In this article, we’ll cover:
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Why the EP050R+MP is obsolete
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The benefits of the EP050R2+BAC-N as a replacement
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Key features and compatibility considerations
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A detailed side-by-side comparison table
Why Was the Belimo EP050R+MP Discontinued?
Belimo, a global leader in smart actuator and valve technology, routinely updates its portfolio to keep up with digital building trends and energy-saving requirements. The EP050R+MP widely uses as a pressure-independent control valve (PICV) actuator but is now officially phased out and no longer produced or supported .
What Is the Official Replacement?
The Belimo EP050R2+BAC-N is the latest model in the EP series and is designed as a direct, future-proof replacement for the EP050R+MP. It is compatible with the same valve body and features enhanced performance for today’s smart building needs.
Key Features of EP050R2+BAC-N
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Multi-protocol communication: Supports BACnet MS/TP, Modbus RTU, Belimo MP-Bus, and standard analog signals (0.5–10 V or 2–10 V).
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Advanced diagnostics: Built-in temperature and glycol monitoring for better system oversight and energy management.
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Backwards compatibility: Can emulate the legacy EP050R+MP in existing MP-Bus systems for easy retrofits.
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Enhanced energy efficiency: Lower power consumption and remote configuration support.
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Future-proofing: Designed to support evolving BAS protocols for years to come.
How to Upgrade from EP050R+MP to EP050R2+BAC-N
1. Check Mechanical Compatibility
The EP050R2+BAC-N is designed for the same valve size (DN50, PN25) and typically requires the ZREV50F adapter for retrofit installations.
2. Configure for Your BAS
If your building automation system uses MP-Bus, set the EP050R2+BAC-N to MP-Bus compatibility mode. For modern systems, take advantage of BACnet or Modbus to unlock more features.
3. Installation & Setup
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Follow wiring and configuration instructions in the official Belimo documentation.
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Use the Belimo Assistant App for easy setup and diagnostics.
4. Enjoy Enhanced Performance
With the upgrade, you’ll benefit from improved diagnostics, smarter building integration, and peace of mind regarding spare parts and support.
Belimo EP050R+MP vs EP050R2+BAC-N: Side-by-Side Comparison
| Feature / Attribute | Belimo EP050R+MP (Obsolete) | Belimo EP050R2+BAC-N (Current) |
|---|---|---|
| Valve Size | DN50 (2″) | DN50 (2″) |
| Pressure Rating | PN25 | PN25 |
| Max. Flow (Kvs) | 30.4 m³/h (6.3 L/s) | 30.4 m³/h (6.3 L/s) |
| Power Supply | AC/DC 24 V | AC/DC 24 V |
| Control Signal | MP-Bus, 2–10 V DC (analog) | BACnet MS/TP, Modbus RTU, MP-Bus, Analog (0.5–10 V / 2–10 V) |
| Diagnostics | Basic | Advanced (fluid temp & glycol monitoring) |
| Mounting Adapter Required | ZREV50F (for some applications) | ZREV50F (for retrofit) |
| Compatibility | Obsolete, limited protocols | Backward compatible, multi-protocol support |
| Availability | Discontinued | Current, in production |
| Configuration | Basic DIP switch | Digital interface & App support |
| Energy Efficiency | Standard | Improved, lower standby power |
| Documentation | Limited (legacy) | Full, modern guides & datasheets |
Frequently Asked Questions
Q: Is the EP050R2+BAC-N fully compatible with my legacy EP050R+MP installation?
A: Yes! It’s designed to fit the same valve and can be configured in MP-Bus mode to work seamlessly with existing systems. For new installations, BACnet and Modbus options offer even more flexibility.
Q: Will I need to change the wiring?
A: The wiring is very similar, but always check the latest datasheet before installation to ensure proper connections and settings.
Q: Why is the use of ZREV50F adapter?
A: The adapter guarantees mechanical compatibility with existing valve bodies—making replacement easy and reliable.
Q: What are the benefits of upgrading now?
A: You’ll ensure ongoing technical support, better diagnostics, energy savings, and the ability to integrate with the latest BAS protocols.
Conclusion
Switching from the discontinued Belimo EP050R+MP to the new EP050R2+BAC-N is a straightforward and future-ready solution. The new actuator offers multi-protocol support, advanced diagnostics, and full compatibility—ensuring your HVAC system remains reliable and efficient for years to come.
For more information, check the official Belimo documentation or consult your authorized Belimo distributor.
