Mastervolt 77020115 Mastershunt 500
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
MasterShunt is the heart of every battery powered energy system. This integrated battery monitor shares information about the battery bank with other MasterBus, CZone or NMEA 2000 enabled devices such as battery chargers, inverter/chargers, and displays. No surprises: allowing complete automation of your system, MasterShunt improves comfort, prolongs battery life and extends your runtime.
- MasterBus, CZone and NMEA 2000 communication
- Fits in a CZone system including setup tools and configuration file
- Digital shunt providing the energy system with extensive information and historical data
- Very accurate and reliable determination of State of Charge (SOC)
- Service mode prevents memory loss during system maintenance
- Realistic and precise indication of the time remaining
- Smart MasterBus powering mode reduces idle consumption to a bare minimum
- For higher current, multiple MasterShunt models may be installed in parallel
- MasterConnect system makes connecting to the DC Distribution product very easy
- Straight forward, easy to install
- Freedom of choice for fuse type, rating and location. Suitable for T-fuse and ANL-fuse (to be ordered separately)
- Robust housing with isolation of the DC connections
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.