Free shipping on orders over $150. Learn more
Returns are accepted within 30 days after shipment. To be eligible for a return, items must be unused, uninstalled, and in their original packaging, and proof of purchase is required. The following items are not eligible for return: Installed or used products, clearance or final-sale items, trolling motors, programmed AIS units, KVH Starlink products that are registered or opened, special-order products, or products displaying the notice “This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.” in their description. Opened or unsealed DVDs, CDs, or cartography (unless defective) are not eligible for return. Return Merchandise Authorization (RMA) numbers are required for all returns. Learn more.
Egret Marine ships marine parts and accessories within the contiguous United States only. Orders are typically processed same day if placed before 3pm CST, excluding weekends and holidays. Learn more.
Galvanic Isolator VDI-16A, 16 AMP Max Waterproof Potted
The galvanic isolator prevents electrolytic corrosion. It blocks low-voltage DC currents that enter your boat via the shore power earth wire. These currents can cause corrosion to the boat’s underwater metals, like the hull, propeller, shaft, and so on.
The galvanic isolator consists internally of two diodes which are connected in an anti-parallel fashion. When they are connected in this way, the diodes allow current in both directions but only above a certain threshold voltage. The voltage at which diodes conduct is about 1.4 Vdc.
The isolator is installed directly behind your boat's 120V - 230V connection. The forward voltage from the galvanic isolator is higher than the potential difference between metals. As a result, this voltage will not allow conduction and as such, the galvanic isolator will prevent any electrolytic current. However, if there is a (higher) error voltage in the AC circuit, the diodes will allow current through and the residual-current device will break the circuit.
Please contact your dealer for any returns, repairs or support issues related to this product.
Whitecap
Whitecap Straight Short Cam Bar [S-0226SL]
Whitecap
Whitecap Strap Hinge - Polished Brass - 6" x 1-1/8" - Pair [S-0605BC]
Whitecap
Whitecap Push Up Ski Tow Pylon - Vertical Mount [6959]
Southco
Southco Flush Sliding Door Latch - Square - Aluminum [MF-01-110-60]
TACO Marine
TACO Stainless Steel Pin Lanyard w/Plastic Knob [F13-0244BN-1]
Southco
Southco Flush Pull Latch - Push To Close - Medium - White [M1-61-1]
Whitecap
Whitecap 6" Cleat - Teak [60401]
Whitecap
Whitecap Folding Seat Hinge - 304 Stainless Steel - 2" x 3-3/16" [S-3444]
Why CO and Propane Alarms Are Non-Negotiable Carbon monoxide (CO) is the leading cause of boating fatalities that don't involve drowning. It's colorless, odorless, and can incapacitate a person within...
Choosing the right VHF speaker for your boat comes down to weatherproofing, power handling, and mounting flexibility. Here's what to look for.
A properly installed transducer is the foundation of accurate sonar on your bass boat. This complete guide covers mounting methods, location selection, depth settings, cable routing, water testing, and the...
A properly built NMEA 2000 network lets your chartplotter, GPS, AIS, and instruments share data seamlessly. Here's how to plan and build one.
Marine electrical systems demand corrosion-resistant, properly rated components. Here's a practical overview of terminal blocks, switches, and cables for boat wiring.
Carbon monoxide alarms, fire extinguishers, and life jackets are non-negotiable safety gear for any boat. Here's what to know before you buy.
Mold, mildew, and hull fouling are inevitable on the water — but manageable with the right products and a consistent maintenance routine.