Direct Current (DC) Generators - Variable Speed
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When one is considering ZRD and its products, one needs to contemplate the following and keep it resident in their thoughts;
When looking at those items in life that provoke a fear of change and sometimes even make one tremble, embrace that fear with open arms and run forward with full force. What one meets on the other side is often truly rewarding and usually exceeds all expectations."
GREENEST Charging Solutions available - Finally, what you have been waiting for, the BEST DC Generators made are here!
ZRD dedicated DC (Direct Current) Generator solutions may have up to 6,600% more amperage available for battery bank charging and may require only 5% of the engine run time as compared to some 120 Vac generator solutions.
This Low Profile Series is designed specifically to fit where clearance is at a premium. All servicing (Fuel, Oil, Fresh Water, Alternator connections, Belt Tensioning, ... ) is easily done from one side. Nothing on the back side needs attention. With optional stainless turnbuckle adjuster (shown, ILO standard Adjustment arm) even that is almost a non-event. The photo on the right shows the variable speed operator adjustable throttle control cable. Variable Speed Generator Output is enabled by design and operated by the user as desired depending on the needs of the battery bank charge state. The throttle control cable is very flexible and may be installed curved (180 degrees shown) to fit any location desired by the user. The *optional control panel (photos further below right) includes an Hour Meter, Water Temperature and Oil Pressure gauges, On/Off and momentary Preheat/Start Switches. By design, depending on model selected, some standard or optional features may not be offered. A simple 5-step installation process is detailed below.
120Vac is also available via an inverter. Click on this chart , the selector switch (below), or the words to view the MUST READ FAQ. "Why choose DC (Direct Current) over AC (Alternating Current) when selecting a Generator?" Additionally, you also have the option (if appropriate) to choose and install an upgraded version (model ZDCGEUR) that enables extended run time - see the FAQ for full details.
ZDCGE1222 & ZDCGE2490
(EXTENDED Run Time Versions follow below)
Front Service Side - Click for Enlarged Labeled View
Everything you could possibly need access to is here.
Low Profile - Fits in the smallest of locations. Click here for Shelf Dimension
(In addition to free space for cooling air flow, additional room is required for Exhaust Hose,
Muffler, Throttle Cable installation with its associated (if needed) turning radii, and front side access for routine servicing.)
See images below for examples of remote location installation of Throttle, Control Panel, and Alternator control.
(High Output, Low Profile, Compact)
• 12/14.1 Vdc (3.5Kw-220E)
• 24/28.2 Vdc (2.6Kw-90E)
*1 - In stock and available for shipment
*2 - Extended Duty Operational run times for charging non-standard larger battery banks or loads requiring extended run times
*3 - Custom Builds (allow 2-4 weeks)
Optional 4Kw Extended Run Time Versions*2,3
(Only 1"wider than standard ZDCGE1222, Adds Only 33#s to Standard Weight)
• Dedicated Custom Designed DC (Direct Current) Generators Available •
ZRD manufactures custom installation solutions Tailored to Customer's Requirements.
This often includes dedicated all-weather enclosures - permanent or maneuverable. For Marine or Land use.
• Land Based Air Cooled (non-marinized) DC (Direct Current) Generators Available •
Engine cooling is accomplished using a custom radiator instead of a marine raw water heat exchanger. These systems are designed for use in Remote Locations that do not have access to grid power. They are perfect for cabins, motor homes, trailers, flatbeds, and many industrial applications. They may be totally integrated with solar and/or wind powered installations.
Features Included in Base Pricing:
• Low profile
• USER Adjustable Throttle Control
• 4-Point Stainless Steel Isolation Mounts
• Heavy Duty Belt Drive System
• Mechanical Water Pump
• Fresh Water Heat Exchanger Cooling
• Zinc Anode in Heat Exchanger
• Stainless Steel Wrapped Water Cooled Exhaust
• Oil Drain Plug with Screen
• 12Vdc Electric Fuel Pump
• Remote Electric Start
• Air Intake Filter & Silencer
Standard Installation Features (additional charge):
• Heat Exchanger Overflow Bottle
• Stainless Steel Turnbuckle Adjuster
• Anodized Pulley
• External Regulation Control
• Prewired Control Panel with
Oil & Water Sensors and Gauges,
Hour Meter, and Control Switches
• 4" Duct Fan
Additional (Optional) Installation Features:
• Matched set - Fuel Tank Pick Up, Return
• RACOR Fuel Filter
• Vernalift Muffler
• Thru-Hulls, Hosing, Ducting, Wiring, Sound
Reduction Material for Bulkheads (as needed)
• 2K to 8K Inverters
Some inverter models are stackable
120Vac/60Hz and 230Vac/50Hz Inverters available
Click on following Image for details on Best Inverter/Charger Available
Remember 120, 208, 240 Vac is also available via an inverter. Click on "Why choose DC (Direct Current) over AC (Alternating Current) when selecting a Generator?" to see the FAQ link.
In the ZRD 220+amp DC (Direct Current) Generator shown above is an installed optional Engine Harness. It comes complete with (see images below) a ZRD dedicated fused matched Control Panel. Its installation is as simple as mounting the control panel with 4 screws and plugging it in. The fused Plug-In connector plug may be seen between the starter and the alternator. This option saves installation time and considerable installation costs ($$$$).
Click on any of the following 3 images for a Larger View
Specifications / Features
Click on any of the 4 images above for a Larger View
|Left is an animated view of a ZRD DC (Direct Current) Generator Isolation mount. The mounts ZRD use keep engine movements to a minimum and also significantly reduces vibration noise transferred to the vessel.|
• Review ALL Documentation
* Locate a Proper Location
* Unpack dedicated
* Bolt in DC Generator
• Install and Connect
* Fuel Tank Pick Up & Return
◊ Cut (if needed)
◊ Drill & Bolt On
* Fuel Filter
• Install and Connect
* Thru Hulls
◊ 1 below water intake
◊ 1 above water exhaust
• Install and Connect
* Control Panel
◊ Mount & Plug In
* Battery Cables
* External Regulator
◊ Plug in Harness
◊ minor wiring
* Inverter (Optional)
* K&N Switch (Optional)
• Install and Connect
◊ Cut (if needed)
◊ Bolt On
64 second video showing an easy (light weight) ZRD DC (Direct Current) Generator Installation in a vessel's main salon, Operation at 900, 1500, 2000, 2500 rpm, and lastly at 100% full 3000 rpm output. The sound cover is off the running DC Generator until the end of the video. This shows how smooth the DC Generator operation is. Holding a conversation is very easy with little extraneous noise from the generator. At the end, the Customer provides Comments. Note: The background noise during the first 30 seconds is from a nearby boat having its bottom sanded.
40 second video with the customer in the left video providing ZRD updated feedback regarding how he feels After cruising the Bahamas without ever plugging in. His ZRD ZDCGE1222 DC (Direct Current) Generator was his main source of electrical power. He also has a ZRD High Output 94amp engine alternator he used while motoring, but he routinely relied on his ZRD DC Generator for the majority of his electrical needs recharging his battery bank that supplied 100% of his power during his entire cruise.
|DC Generators being shipped to waiting customers in ZRD custom built shipping crates to ensure a safe delivery worldwide. One customer's completed order is being shipped internationally. Another customer has ordered many additional ZRD products (in addition to his DC Generator) for his vessel, propulsion engine, and optional accessories bundled into a single consolidated shipment. The far right image is a ZRD ZDCGDI2440 (12Kw) being shipped to an international boat builder to be installed during construction and commisioning. As a certified US freight forwarder, we are able to offer this service to our customers at a very reasonable price.|
If desired, ZRD will provide a custom electrical schematic (see FAQ link - AC & DC Schematics) that covers the major 12 vdc and 120 vac components. It will show their relationships such that your plans for a desired electrical system upgrade or replacement will be assured and may be easily implemented. Also, if requested, additional components will be included in the schematics to assist future desired plans or expansions. This option, a $680 value, is provided free of charge when a major electrical system upgrade is purchased. Contact ZRD for details.
Regarding Water Makers, Dive Compressors, ...
ZRD considered manufacturing a multifunctional unit that some occasionally ask for, but fundamentally ZRD decided - it was the wrong approach.
Instead and actually a much better approach, is to use the DC Generator as ZRD intended it to be used. This enables reaching peak efficiency and reducing the carbon footprint
as much as possible. That is a lot of words to simply say – Run EVERYTHING on your vessel off of the battery bank without exception. That includes 120Vac needs (via an
inverter) too. With that as the underlying guiding principle at the foundation of ZRD, most accessories such as water makers, dive compressors, … are available electrically.
Therefore the electrical vs. the mechanical versions of options should be chosen and installed. In the case of water makers, it is very simple and clear – ZRD suggests
installing and using electric water makers. They are simple, efficient, relatively priced, … and obviously can be run any time without the need to have an engine running.
Take slow careful consideration about what we have explained and hopefully you will reach the same conclusion ZRD did. The belt driven water maker pump is not wrong, it is just that doing everything electrically just made more sense. No different than running air conditioning via the battery bank instead or running a 120Vac generator for hours … See our FAQ - Why choose DC over AC when Selecting a Generator? for additional details.