Hella Marine 4-Pole Plug & Socket, Water-Resistant, Chrome-Plated Brass, Socket Cap, For 6.5mm Cable

Overview

The Hella Marine 002957801 is a 4-pole plug and socket deck connector for bringing four conductors through a deck or bulkhead and disconnecting them cleanly for service or removal. It is rated for a maximum load of 10A at 12V and uses chrome-plated brass housings with brass contacts for a connection that stands up well in a damp marine environment.

The socket is supplied with a protective cover for when the plug is not in place, and the plug is sized for cables up to 6.5 mm outer diameter. Wiring is via screw terminals, so you can land your conductors without special crimp pins and re-terminate later if your rigging changes.

Key features

• 4-pole plug and socket set for four separate circuits through a deck or bulkhead pass-through
• Maximum load rating of 10A at 12V for typical onboard accessory circuits
• Chrome-plated brass housings with brass contacts
• Screw terminal connections for straightforward installation and servicing
• Protective cover on the socket to help keep spray out when disconnected
• Plug accepts cable jackets up to 6.5 mm outer diameter

Installation and setup

This connector is commonly mounted where you need a tidy disconnect point, such as a transom, hardtop, deck edge, or mast base. Bed the socket properly and route wiring with a drip loop on the interior side so water cannot track along the conductors into the boat.

Label the four conductors before termination, tighten the screw terminals firmly, and add strain relief so vibration and cable movement are not carried by the terminals.

Compatibility and electrical use

Use it on 12V DC circuits up to the 10A maximum load rating. It suits lighting circuits, low-current accessories, and control wiring, rather than high-draw loads with large inrush currents.

Before ordering, confirm you need four conductors and that your cable jacket fits the 6.5 mm maximum outer diameter at the plug.

Use cases on board

It is a solid fit for sailboats with a removable mast wiring harness, powerboats with detachable hardtops, and any installation where a light bar, deck wash, or accessory panel needs to unplug for service. It also works well for connections that are unplugged regularly, where keeping wiring organized matters.

Maintenance and care

Keep the cover closed when the connector is not in use and rinse away salt after heavy exposure. If the connection ever feels gritty or intermittent, disconnect and clean the contacts before reassembling.

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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