Sapphire Energy
60 Amp MPPT Solar Charge Controller MC6015
60 Amp MPPT Solar Charge Controller MC6015
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Sapphire Energy MC6015 60A MPPT Solar Charge Controller (150V)
The Sapphire Energy MC6015 is a high-performance 60A MPPT solar charge controller designed for larger off-grid solar systems that need higher charging current, expanded battery voltage support, and more flexible solar panel wiring. With support for 12V, 24V, 36V, and 48V battery systems plus a 150V maximum PV input rating, it is an excellent fit for cabins, RVs, marine systems, workshops, telecom sites, and serious off-grid power systems.
Compared with lower-voltage MPPT controllers, the MC6015’s higher 150V Voc rating gives you more room for series-connected solar panels, longer wire runs, and reduced voltage drop. Built-in Bluetooth connectivity allows convenient monitoring and configuration from a mobile app, while the RS485 port supports the optional remote LCD screen for installations where the controller is mounted out of sight.
Mount the controller in a dry, ventilated location with airflow around the heatsink. Use properly sized wire, battery-side overcurrent protection, and a PV disconnect where required or practical for service.
Why You’ll Love It
- 60A MPPT charging for larger battery banks and higher-output solar arrays
- 150V max PV input for longer panel strings and more flexible array design
- Supports 12V / 24V / 36V / 48V battery systems
- Built-in Bluetooth connectivity for wireless monitoring and configuration
- RS485 communication supports the optional remote LCD display
- LiFePO4 compatible with programmable lithium charging settings
- Built-in LCD display for local viewing and setup
- Large finned aluminum heatsink for dependable passive cooling
Installing the controller in a cabinet, electrical compartment, or utility area? The optional remote LCD screen connects through the RS485 port, giving you convenient display and programming access from a better location.
Technical Specifications
| Model | MC6015 |
| System Voltage | 12V / 24V / 36V / 48V automatic recognition |
| Rated Charge Current | 60A |
| Battery Types | Gel, AGM, Flooded / Liquid, Lithium, User / Programmable Lithium |
| Grounding | Common Negative |
| Max PV Open-Circuit Voltage | 150V DC |
| Max Recommended PV Input Power | 750W / 1500W / 2250W / 3000W |
| MPPT Tracking Range | Battery Voltage + 1.0V to 0.9 × Voc |
| MPPT Tracking Efficiency | >99.9% |
| Charge Conversion Efficiency | Up to 98% |
| Load Output Current | 30A |
| Load Modes | Always On / Street Lamp / User-Defined Mode |
| Display | Built-in LCD |
| Bluetooth | Built-in / supported Bluetooth monitoring and configuration |
| Communication | RS485 via RJ11 interface |
| Remote LCD Support | Yes, via RS485 |
| Temperature Sensor | External temperature sensor included |
| Cooling | Passive cooling, finned aluminum chassis |
| Protection Rating | IP32 |
| Power Terminals | Up to 6 AWG / 16mm² |
| Operating Temperature | -20°C to +55°C |
| Storage Temperature | -25°C to +80°C |
| Dimensions | 262.5 × 186.5 × 97.5mm 10.3 × 7.3 × 3.8 in |
| Weight | 3.0kg 6.6lb |
Always confirm cold-weather panel Voc remains below the controller’s 150V maximum PV input limit.
The MC6015 is the step-up choice when a 100V controller is too limiting. The higher PV input rating allows more flexible panel string design while still giving you efficient MPPT charging and 60A output capacity.
Recommended Maximum Solar Array Sizes
| Battery System | Recommended Max Solar |
| 12V | 750W |
| 24V | 1500W |
| 36V | 2250W |
| 48V | 3000W |
Slight over-paneling may be used in some systems to improve real-world harvest, but the controller output remains limited to 60A. Array voltage must always remain below the 150V PV input limit.
Applications
- Large RV, van, and expedition vehicle solar systems
- Cabins, workshops, sheds, and off-grid buildings
- Marine and sailboat charging systems
- 48V LiFePO4 battery banks
- Telecom, security, and remote monitoring sites
- Backup power and hybrid solar battery systems
Installation Notes
The MC6015’s higher 150V PV input rating is especially useful when wiring panels in series. Higher array voltage can help reduce current on the PV side, reduce voltage drop, and make longer cable runs more practical compared with lower-voltage solar arrays.
For safe system design, calculate solar panel cold-weather Voc before connecting your array. Solar panel voltage rises in cold temperatures, so a string that appears safe at standard test conditions may exceed the controller’s rating during winter conditions.
Proper fusing helps protect your wiring and connected equipment. Install a fuse or breaker on the positive conductor as close to the battery or busbar as practical.
The MC6015 is the best choice when you need 60A charging and 150V solar input. For smaller systems, the MC4010 40A and MC2010 20A controllers offer similar MPPT performance in more compact sizes.
Frequently Asked
Can I use this controller with LiFePO4 batteries?
Yes. The MC6015 supports lithium battery charging and programmable charging settings, making it suitable for use with LiFePO4 battery banks.
If default lithium settings do not align with your battery manufacturer's recommendations, simply use the "User" mode and adjust as needed.
Does this MPPT have Bluetooth?
Yes. The MC6015 includes Bluetooth to enable monitoring and configuration through the free mobile app.
You can view performance, history, and adjust settings from your mobile device.
Does the MC6015 work with the remote LCD screen?
Yes. The MC6015 supports the optional remote LCD display through its RS485 communication port. This is useful when the controller is installed in a storage compartment, cabinet, or utility space where the built-in display is hard to access.
Why is the 150V PV input rating useful?
The higher 150V input rating gives you more solar design flexibility. It can allow more panels in series compared with a 100V controller, which may reduce PV-side current, reduce voltage drop, and simplify wiring on larger systems.
Can I use the MC6015 on a 48V battery bank?
Yes. The MC6015 supports 12V, 24V, 36V, and 48V battery systems, making it a strong choice for larger off-grid systems and 48V LiFePO4 battery banks.
How much solar can I connect to the MC6015?
Recommended maximum solar input is 750W on 12V systems, 1500W on 24V systems, 2250W on 36V systems, and 3000W on 48V systems. Your array voltage must also remain below the 150V maximum PV input rating.
Can I over-panel this controller?
Slight over-paneling is sometimes used to improve real-world harvest in cloudy weather or low-light conditions, but the controller will still limit output to its rated 60A charge current. Never exceed the 150V PV input limit, including cold-weather Voc.
Do I need a PV disconnect?
A PV disconnect is strongly recommended for because it allows the solar array to be turned off (isolated) before servicing the controller or battery system. It is especially useful on larger arrays and higher-voltage panel strings.
It is also a helpful tool when troubleshooting/testing.
Do I need a battery-side fuse or breaker?
Yes. The battery-side wiring should be protected with properly sized overcurrent protection installed as close to the battery or busbar as practical.
This protects the cable and connected equipment in the event of a fault, or short circuit.
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