Mastervolt
Mastervolt Mass GI 7 Isolation Transformer 7KW [88000705]
Mastervolt Mass GI 7 Isolation Transformer 7KW [88000705]
Get it between July 30 and August 01.
Low in stock
✓ Used by Hundreds of Customers
✓ Trusted by Sailors Nationwide
✓ Expert Customer Service
✓ Bulk Pricing Available
At MarineXGear, we are proud to have the best refund and return policies in the industry. If you’re not satisfied with your purchase for any reason, you may return it to us within 30 days for a refund.
If you have a problem with our order (there are missing components, damages, or the product is not functioning), please reach out to us as quickly as possible. Some of the problems can be resolved by going through the product manual or the product FAQs.
Refer to our Refunds & Return Policy for more details.
Order Processing
Once we receive your order, we will send you a confirmation email. Then we will process the order by confirming that the product is in stock and ready for shipment. If any of the items in your order are back-ordered, we will reach to you via email or phone and you may choose to either wait or receive a 100% refund.
Please allow 1-3 days for processing your order.
Shipping
We ship to the lower 48 continental United States only at this time.
Shipping times and shipping method will depend on the specific product and brand you purchase. If you have any shipping question, feel free to ask on the chat or email us at info@marinexgear.com.
We will send tracking information by email the same day the shipping tracking number is created/available.
Before you sign the shipping bill, please THOROUGHLY INSPECT YOUR ITEM. Signing for the receipt of a damaged product removes the liability of the shipping company and MarineXGear. Once you accept your shipment as non-damage, your item is your property.
![Mastervolt Mass GI 7 Isolation Transformer 7KW [88000705]](http://marinexgear.com/cdn/shop/files/96314XL.jpg?v=1783384570&width=150)
Mass GI 7 Isolation Transformer 7KW
A safe connection between the vessel and the shore installation is an essential part of your electrical system. A galvanic electrical isolation between shore power and the on-board power prevents any electrical corrosion of metal parts while keeping you earthed.
Features:
- Ultra-modern high-frequency electronic switch technology.
- Lightweight and compact.
- Integrated Soft Start function.
- Connect to voltages from 90 to 255 V and from 45 to 65 Hz.
- Units can be parallel-coupled for higher capacity.
- Higher efficiency, limited heat development.
Modern transformer technology: Light, silent, reliable, and easy - The Mass GI is supplied with the latest high-frequency switching technology as well as Soft Start for peak loads when connecting to the grid. LED lights on the casing indicate load and overload. The transformer can be remote-controlled. The Mass GI is 75 % lighter and 60 % smaller than a low-frequency transformer.
Higher capacity via parallel switching - Parallel switching of the Mass GI units increases the AC power capacity. Two 16 A/3.5 kW units ensure 32 A/7 kW; four units give 64 A/14 kW.
Install anywhere - With its robust aluminium casing, this isolation transformer can be fitted in any position on the wall or floor. No rubber mountings are necessary because the unit does not vibrate or hum. The Mass GI also features professional connections with strain relief cable glands.
Specifications:
- Output voltage (± 5 %) - 90-255 V
- Output frequency range - 45-65 Hz
- Input voltage range - 90-255 V
- Input frequency range - 45-65 Hz
- Nominal input current (230 V) - 32 A
- Galvanic isolation - yes
- Efficiency - > 93 %
- Power 230 V (120 V) - 7000 VA (3840) VA
- Dimensions, hxwxd: 340 x 261 x 250 mm 13.4 x 10.3 x 9.8 inch
- Weight - 10 kg 22.0 lb
- Compliance - CE, ABYC
Why Choose MarineXGear
At MarineXGear, we believe true peace of mind on the water starts with having the right equipment. Our mission is simple: to be the trusted destination for premium marine gear and dependable on-water solutions. Every product we carry — whether navigation systems, safety equipment, marine electronics, or boat accessories — is carefully chosen to help you perform at your best, stay safe, and get the most out of every voyage.
A+ Customer-First Approach
We're more than an online store — we're your partner on the water. Unlike large, impersonal retailers, our dedicated team delivers personalized guidance at every step. Whether you're outfitting a vessel for the first time, upgrading your gear, or need expert advice on a specific product, our specialists are always just a call or email away.
Passion for Wellness & Resilience
Our brand is built on a genuine love for the sea. We live and breathe marine equipment — and when you reach out to MarineXGear, you'll connect with experts who understand both the technical specs of our products and the on-water lifestyle they support.
Trusted Experts, Curated Brands
We partner directly with the most respected names in the marine industry. Our curated selection ensures every product meets our high standards for quality, durability, and performance on the water. With MarineXGear, you shop with confidence, knowing you're investing in proven gear backed by full manufacturer warranties.
More Reasons to Choose MarineXGear
- Price Match Guarantee – We’ll match any competitor to ensure you always receive the best value.
- Free Shipping – Enjoy free delivery on most orders across the lower 48 U.S. states.
- 100% Secure Ordering – Our platform uses SSL encryption to protect your information.
- Exclusive Packages & Volume Discounts – Customized solutions available for clinics, wellness centers, and large orders.
- Authorized Dealer – Every order is protected with full manufacturer support and warranties.
At MarineXGear, we're committed to keeping you safe, equipped, and confident on the water. With our expertise, personalized service, and carefully curated selection, you can invest in your vessel and your adventures with complete peace of mind.
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