Blue Sea Systems Terminal Feed Through Connector, 250A, 48V DC, IP66

Overview

The Blue Sea Systems Terminal Feed Through Connector is a bulkhead pass-through terminal for routing high-current DC cables through hulls, decks, and bulkheads while reducing cable chafe and adding strain relief.

This connector is rated IP66, making it suitable for exterior or exposed marine locations where spray, washdowns, and heavy-sea conditions can reach the installation area. The mounting face can be gasketed or bedded to help create a water-tight installation when the cable path passes through a panel or structural surface.

The range includes red and black color options, with 5/16"-18 or 3/8"-16 stud configurations. That gives installers a clean way to bring large DC conductors through a deck, engine-room bulkhead, battery-compartment wall, or equipment panel without simply passing cable through a raw hole.

Key features

• Feeds high-current cables through hulls, decks, and bulkheads while reducing chafe at the pass-through point.
• IP66 rating supports installations exposed to spray, washdowns, and heavy-sea conditions.
• Mounting face can be gasketed or bedded for a water-tight installation through panels and bulkheads.
• Available in red and black to support clear DC cable identification on board.
• Stud options include 5/16"-18 and 3/8"-16 for matching common high-current cable lugs.
• Useful for battery banks, inverter feeds, windlass wiring, DC distribution panels, and other large-cable runs where strain relief matters.

Variants

This product is offered in multiple configurations based on color and stud size. The color options help keep positive and negative cable paths visually organized, while the stud size should be matched to the cable lug and system layout.

Across the range, the purpose remains the same: a feed-through terminal for high-current cable runs through marine panels, decks, hulls, and bulkheads. The variant differences are limited to the visible color and stud thread configuration.

• 2201: Black, 5/16"-18 studs. The black version suits installations where the pass-through needs to match black DC cabling or negative-side identification.
• 2202: Red, 5/16"-18 studs. The red version suits installations where the pass-through is used with positive-side DC cabling or needs a clear visual warning point.
• 2203: Black, 3/8"-16 studs. This configuration uses the larger stud size while keeping the black color for negative-side or neutral visual organization.
• 2204: Red, 3/8"-16 studs. This configuration combines the larger stud size with red color for positive-side DC cable identification.

Installation and fit

Match the stud size to the cable lug before installation, then confirm that the mounting surface has enough room for the terminal body, cable bend radius, and any gasket or bedding compound used at the face. Large DC cables should be routed so the connector carries strain relief at the pass-through, not the weight or movement of an unsupported cable run.

Typical mounting locations include battery-compartment bulkheads, engine-room panels, deck penetrations for equipment feeds, and DC distribution areas where a large cable needs to pass cleanly from one side of a structure to the other.

Use on board

This connector is a practical match for boats that use heavy DC loads such as windlasses, bow thrusters, inverters, chargers, and battery distribution equipment. It is especially useful where a cable penetration must stay tidy, protected from edge wear, and easier to inspect during routine electrical checks.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Orders of $100 or more qualify for free shipping when eligible. For orders under $100, shipping costs are calculated at checkout based on destination, package weight, and selected service. International shipping is available for eligible products, and certain items may require additional handling, warehouse transfers, or may ship directly from the manufacturer, which can affect processing time.

Deliveries are handled by preferred carriers such as USPS, UPS, FedEx, DHL, and others depending on your location and selected service. Estimated delivery times are displayed at checkout and may vary due to customs processing, carrier delays, weather, postal disruptions, or other circumstances beyond our control. Once your order ships, you'll receive a confirmation email with tracking information. Tracking may take up to 24 hours to update on the carrier's website and is also available through your account when applicable.

We ship throughout the United States and to most international destinations for products eligible for international shipping. International orders may be subject to customs duties, taxes, brokerage charges, or other import fees, which are the customer's responsibility and are not included in the product or shipping price. PO Boxes are accepted only when shipping through USPS, and not all packages qualify for this option. If your order does not arrive within the estimated delivery window, please contact us at info@apollolighting.com or +1 (954) 375-0100 so we can assist with locating your package.

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Returns may be requested within 30 days of receiving your order. Items must be unused, uninstalled, unaltered, and returned in their original packaging with all tags, packing materials, blank warranty cards, manuals, instructions, accessories, and included items. Certain products, including installed or used electronics, electrical components, lighting, consumables, custom or special-order items, cut-to-length products, safety equipment, and merchandise exposed to water or marine conditions, may not be eligible for return.

To request a return, sign in to your account and select the applicable order and items, and submit your request for review. Eligible unfulfilled items may also be submitted for cancellation within 1 hour of placing the order. Returns or cancellations are not considered approved until you receive confirmation from Apollo Lighting. Please do not ship or drop off merchandise before receiving return approval and instructions.

Customers are responsible for arranging and paying for return shipping unless the return is due to an error by Apollo Lighting or the item is verified as defective, damaged, or incorrect. Missing, damaged, defective, or incorrect items must be reported within 2 business days of delivery, and photos or other documentation may be required for review. If the issue is verified, Apollo Lighting may provide or reimburse return shipping and issue a replacement or refund depending on the circumstances. International customers are responsible for return shipping, duties, taxes, customs charges, brokerage fees, and other costs associated with an international return.

After your return is received and inspected, approved refunds are issued to the original payment method and may take 5-7 business days to appear after processing. Original shipping and handling charges are nonrefundable, and the value of any included free items that are not returned may be deducted from the refund. Apollo Lighting does not charge a standard restocking fee on eligible returns. Returns that are incomplete, damaged, installed, used, altered, improperly packaged, or otherwise do not meet the eligibility requirements may be refused. We recommend using a trackable and appropriately insured shipping service for all customer-arranged returns.

For assistance, contact info@apollolighting.com or call +1 (954) 375-0100.

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Many products sold by Apollo Lighting include a manufacturer's warranty covering defects in materials or workmanship. Warranty terms vary by brand, product category, and model, so eligibility, coverage duration, exclusions, and available remedies are determined by the applicable manufacturer. We recommend reviewing the warranty information provided with your product before installation or use, especially for marine electronics, navigation equipment, lighting, electrical systems, pumps, safety equipment, and other specialized marine products.

If you need warranty service, the claim must follow the process established by the manufacturer, authorized service center, or designated warranty provider. You may be asked for proof of purchase, a serial number, product registration, photos, maintenance or installation records, or other documentation. Apollo Lighting does not determine or modify a manufacturer's warranty coverage or final claim decision, but we are happy to help provide purchase information and direct you to the appropriate manufacturer or warranty resource.

Keep your receipt, product documentation, serial number information, and original packaging when practical. Damage caused by normal wear, misuse, improper installation, insufficient maintenance, corrosion, impact, unauthorized modifications, electrical issues, or operation outside the manufacturer's specifications may not be covered. Warranty claims are separate from standard returns, so a product that has been installed, used, or exposed to marine conditions may no longer qualify for return while still remaining eligible for evaluation under the manufacturer's applicable warranty.

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