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Ships within 48 hours · Estimated delivery Aug 30 - Sep 4
For Your Every Summer RSVP, with Code: SUMMER15
Description
Mastervolt Mass Gi 3.5 Isolation Transformer (3,500 VA @ 230 V)Mastervolt Mass GI 3. 5 is a modern day galvanic isolation transformer, featuring high frequency electronic switch technology. It is designed to sit beween shore power and the on board power to prevent electrical corrosion of metal parts that can occur without this protection. The Mass GI isolation transformer is compact and lightweight, and is housed in a robust aluminium casing. It can be installed easily on a wall or floor, and the unit does not
Mastervolt Mass GI 3.5 is a modern day galvanic isolation transformer, featuring high frequency electronic switch technology. It is designed to sit beween shore power and the on board power to prevent electrical corrosion of metal parts that can occur without this protection. The Mass GI isolation transformer is compact and lightweight, and is housed in a robust aluminium casing. It can be installed easily on a wall or floor, and the unit does not vibrate or hum so will not require rubber mountings. It can aslo be controlled remotely via MasterBus. The Mass GI has a soft start function, which suppresses the inrush current from the transformer to prevent the power fuse blowing. They are also highly efficient, and can be used in parallel to increase the AC power capacity. General 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): 16 A Galvanic isolation: yes Efficiency: > 93 % Power 230 V (120 V): 3500 VA (1920) VA Parallel configuration: to 4 units parallel (= 14 kW) Dimensions, hxwxd: 340 x 261 x 144 mm (13.4 x 10.3 x 5.7 inch) Weight: 6 kg (13.2 lb) Compliance: CE, ABYC Technical specifications Technology: high frequency Earth leakage protection: no No-load power consumption: 22 W Temperature range (ambient temp.): 0 C to 40 C, derating power > 40 C (32 F to 104 F) Cooling: variofan Switch off at: 80 C Protection degree: IP23 Operating humidity: max. 95 % Switch off behaviour breaker: B-characteristic Soft start: yes MasterBus compatible: yesShipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
Price is good
Color: black/black
Seems ok so far.
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Reviewed in the United States on June 2, 2026
★★★★★ 5
Fashionable and Affordable
Color: black/black/green, Color: black/black/green
Watch face is very readable and strap is comfortable. Glass has yet to be scratched and I work a blue collar job. Fantastic watch for the price, keeps accurate time too.
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Reviewed in the United States on April 23, 2026
★★★★★ 5
A great versatile watch
Color: black/black
This is a great watch. I wear a Rolex GMT daily, but wear this at the gym, at fencing practice, holding power equipment , hammering and other activities. Runs fine, keeps good time, easy to read. Like the 24 hour dial. Sometimes I just wear it because I like it.
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Reviewed in the United States on May 6, 2026
★★★★★ 3
Good watch, not incredibly durable for everyday use.
Color: silver/brown
A nice watch, the date feature and the glow in the dark were quite helpful. It lasted be about 6 months of regular use. Unfortunately it stopped keeping time (intermittent freezing) and the second hand fell off, I'm kinda disappointed with its durability. Unsure of the initial cause, I guess I hit something with my wrist.
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Reviewed in the United States on September 14, 2025
★★★★★ 5
Inexpensive good looking watch
Color: silver/glowing/green, Color: silver/glowing/green
Very nice looking watch
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Reviewed in the United States on May 16, 2026