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Shipyard Power Distribution Solutions
ESL Power Systems manufactures NRTL-certified power distribution equipment for commercial shipyards, naval facilities, and marine environments. Built to withstand harsh maritime conditions such as saltwater exposure, constant vibration, and heavy daily use. ESL’s shipyard products keep vessels, equipment, and critical infrastructure running safely and efficiently. From portable power distribution units to shore power mounds capable of powering multiple vessels simultaneously, every product is engineered in the USA and factory labeled for safety and code compliance.
Safe, NRTL-Certified Power For Shipyards
Reliable Equipment Built for Harsh Marine Environments
ESL’s shipyard power equipment is engineered for the toughest conditions a marine environment can deliver. Every enclosure is rated for outdoor exposure and built from corrosion-resistant materials, including 304 or 316 stainless steel, or powder-coated domestic steel, depending on the application.
Key product families include:
- Portable Power Distribution Units — mobile, high-capacity units up to 4000A 480VAC 3-Phase with 135kA withstand rating, built with fork pockets and lifting eyes for easy repositioning around the yard.
- Shore Power Distribution Mounds — 9-gang configurations up to 1600A 480VAC 3-Phase with digital ammeter/voltmeter displays and RS-485 monitoring on every circuit.
- Safety-Interlocked Power Outlets — 60A to 400A ratings in stainless steel watertight enclosures, compatible with Crouse-Hinds receptacles.
- GFCI & Ungrounded Distribution Assemblies — 120V and 440V configurations for personnel safety in wet, conductive environments.
- Load Centers & Isolation Transformers — engineered to prevent galvanic corrosion, ground loops, and voltage fluctuations during vessel shore power connections.
- Welding Power Stations & Electric Utility Stations — up to 8-gang welding configurations and 800A+ utility stations for drydock and fabrication operations.
Not Sure Which Configuration Your Shipyard Needs?
Every shipyard has different power requirements — vessel size, berth layout, existing infrastructure, and compliance standards all factor in. ESL’s engineering team can help you specify the right equipment for your site.
Why Choose ESL For Shipyard Power?
Choosing the right shipyard power partner affects safety, uptime, and long-term maintenance costs. ESL’s shipyard equipment delivers:
- NRTL certification and factory safety labeling on every product
- Corrosion-resistant enclosures rated for saltwater and harsh marine exposure
- Isolation transformers that protect vessel electronics and prevent hull corrosion
- Safety-interlocked connections that protect workers from arc flash and shock
- Digital monitoring on shore power mounds for real-time load visibility
ESL’s shipyard power equipment is trusted by commercial shipyards, naval facilities, and industrial marine operations across the United States.
Built For Safety, Performance & Compliance
- NRTL-Certified & Factory Labeled — every product independently tested and certified for safety and code compliance
- Heavy-Duty Stainless Steel Construction — 304SS and 316SS options for maximum corrosion resistance in saltwater-exposed installations
- Type 3R & Type 3RX Weatherproof Enclosures — rated for outdoor, harsh maritime environments
- Portable & Fixed Installation Options — mobile units with fork pockets and lifting eyes, or permanent dockside installations
- Meets Shipyard & Naval Standards — built for both commercial shipyard requirements and military maritime specifications including MIL-C-24368 compatibility
Trusted By Shipyards Nationwide
With decades of experience in shipyard power distribution, ESL Power Systems is installed at facilities including:
- Commercial shipyards and drydock facilities
- Naval bases and military maritime installations
- Ship repair and fabrication yards
- Port and industrial marine operations
Discover ESL’s Full Line of Shipyard Power Distribution Equipment
Download the brochure for complete specs, enclosure options, and configuration details across ESL’s shipyard power product line.
Frequently Asked Questions
ESL manufactures portable power distribution units, shore power distribution mounds, safety-interlocked power outlets, GFCI and ungrounded power distribution assemblies, load centers, isolation transformers, welding power stations, and electric utility stations. All products are NRTL factory labeled and Made in the USA..
ESL shipyard products are NRTL (Nationally Recognized Testing Laboratory) factory labeled. Enclosures are available in Type 3R and Type 3RX weatherproof ratings, with material options including 316 stainless steel (12GA) for saltwater-exposed installations, 304 stainless steel for standard marine-grade applications, and powder-coated domestic steel for protected yard environments.
Isolation transformers prevent galvanic corrosion of vessel hulls, protect sensitive onboard electronics, and eliminate ground loop currents that can pose electrocution risks near berthed vessels. ESL manufactures isolation transformers and load centers with ungrounded transformer configurations specifically engineered for safe, stable power delivery to vessels in a shipyard environment.
GFCI power distribution detects leakage current and trips immediately to protect workers in wet conditions — essential in shipyards. Ungrounded distribution uses an isolation transformer to separate the system from earth ground entirely, so a single ground fault does not trip the circuit — better for sensitive or continuous-process equipment. ESL manufactures both GFCI assemblies and ungrounded assemblies.
Yes. ESL has decades of experience supplying power distribution equipment for military maritime applications, including naval shipyards and shore power infrastructure compatible with MIL-C-24368 military shore power standards. All products are NRTL factory labeled and built for demanding military and commercial shipyard environments.
Yes. Custom capabilities include non-standard voltage and amperage configurations, specialized enclosure types and materials, integrated digital monitoring and RS-485 communication systems, and custom connector types. ESL works directly with shipyard engineers, naval architects, and facility managers. Visit eslpwr.com/request-a-custom-consultation or call (800) 922-4188.
Yes. ESL’s portable power distribution units are built with fork pockets and lifting eyes for easy repositioning around the shipyard by forklift or crane, allowing flexible, high-capacity power delivery wherever it’s needed. Fixed installation options are also available for permanent dockside power infrastructure.
A welding power station is a multi-gang power distribution unit that supplies dedicated circuits for welding equipment during ship fabrication and repair. ESL manufactures welding power stations in custom configurations, providing reliable, simultaneous power to multiple welding operations in a single rugged enclosure suited for shipyard fabrication bays.
All ESL shipyard power products are designed and manufactured in the USA at ESL’s facility in Corona, California. ESL Power Systems, Inc. is a 100% employee-owned company established in 1995.
Request a quote at eslpwr.com/request-quote or a custom consultation at eslpwr.com/request-a-custom-consultation. You can also call ESL at (800) 922-4188 or email info@eslpwr.com. ESL’s engineering team will identify the right product configuration for your shipyard’s operational and compliance requirements.
The ESL Shipyard Advantage
Built for the harshest environments, not just the easy ones.
Engineered for saltwater exposure, constant vibration, and heavy daily use, ESL’s shipyard equipment is the only line in its class offering NRTL-certified safety across every enclosure type — from portable PDUs to fixed shore power mounds. We built it that way because we’ve seen what corrosion and neglect do to lesser equipment.
A solution that works the way your shipyard operates.
Whether you need a portable unit that moves with the job or a permanent shore power mound serving multiple berths, ESL’s modular product line adapts to your yard’s layout and workflow. Rugged construction, simple safety interlocks, and flexible mounting — all in one line
A partner who understands maritime power, not just electrical code.
We’ve worked with commercial shipyards, naval facilities, and ship repair operations across the country. We understand what’s at stake, from corrosion protection to worker safety to code compliance, and we’re here to help you plan it right.
Let’s Build the Right Solution for Your Shipyard
Request a quote today and get the guidance, specs, and configuration support to move forward with confidence.
