Blue Sea Systems PowerPost Terminal Stud, 48V DC, Stainless Steel

Overview

The Blue Sea Systems PowerPost is an insulated single-stud terminal point for joining multiple high-amperage DC conductors in a clean, serviceable location. It gives battery cables, inverter feeds, windlass cables, charger leads, and other larger DC runs a secure common connection point without needing the footprint of a full bus bar.

Each PowerPost uses a stainless steel terminal stud on an insulated red base rated for up to 48V DC. The reinforced thermoplastic base is listed as PBT UL94 V0, giving the post a practical housing for marine electrical spaces where vibration, heat, and tight mounting locations are part of the job.

This single-stud format is useful on boats where cable routing needs to stay organized behind a panel, near a battery bank, inside an equipment locker, or close to a high-load accessory. Select the stud size that matches the ring terminals and cable stack used in the system.

Key features

• Insulated single stainless steel stud gives multiple large conductors one secure termination point.
• Rated for DC systems up to 48V, covering common 12V, 24V, and 48V marine DC installations.
• Reinforced thermoplastic base with PBT UL94 V0 material rating supports use in demanding electrical compartments.
• Single-post layout helps keep high-amperage cable runs tidy where space is limited and a full bus bar is not needed.
• Multiple stud sizes are available to match common marine ring-terminal hardware.

Variants

The PowerPost is offered in several stud configurations so it can be matched to the ring terminals, cable lug hardware, and available mounting space in the boat’s DC system.

The stud thread and stud length vary by configuration. The insulated single-stud function, 48V DC maximum rating, stainless steel stud construction, and reinforced thermoplastic base are consistent across the listed PowerPost and Mini PowerPost options.

• 2001: 1/4"-20 stud size with 1-1/16" stud length. This size suits installations using 1/4" ring terminals where a longer stud is useful for a modest stack of properly sized conductors.
• 2002: 5/16"-18 stud size with 7/8" stud length. The larger 5/16" thread works with heavier lugs often used on higher-current DC cable runs.
• 2003: 3/8"-16 stud size with 7/8" stud length. This is the largest listed stud size and fits systems using 3/8" ring terminals on large battery or equipment cables.
• 2010: #10-32 stud size with 5/8" stud length. This Mini PowerPost option fits smaller ring terminals and compact DC connection points.
• 2011: 1/4"-20 stud size with 3/4" stud length. This Mini PowerPost option keeps the common 1/4" thread in a shorter format for tighter mounting areas.

Installation and setup

Mount the PowerPost on a stable surface close to the cable group it will serve, with enough clearance to install the ring terminals flat on the stud and protect the connection from accidental contact. It should be positioned so cables are supported and not pulling on the stud, especially on boats where vibration and hull movement can work against loose or strained wiring.

Use ring terminals that match the selected stud size and the cable gauge in the circuit. Keep the stack clean, flat, and serviceable, and follow accepted marine wiring practice for the number of terminals placed on one stud. For 1/4"-20 versions with a listed torque value, the recommended torque is 70 in-lb.

Use cases on board

This terminal post is a good fit for owners, installers, and refit projects that need a neat junction point for high-current DC wiring without adding a larger distribution block. Common applications include battery cable takeoffs, charger or inverter connections, windlass and thruster control feeds, and other locations where several heavy conductors need to meet at one protected point.

It is also helpful during system upgrades, where an older cable stack needs to be moved off a battery post and onto a dedicated termination point that is easier to inspect and maintain.

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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