Blue Sea Systems A-Series Single Pole Toggle Circuit Breaker, AC/DC, Trip-Free

Overview

The Blue Sea Systems A-Series Toggle Circuit Breaker is a single-pole, trip-free AC/DC circuit breaker for boat electrical panels where a circuit needs both overcurrent protection and manual switching at the panel. It uses a magnetic hydraulic mechanism, a toggle actuator, and a panel-mount format that fits the way many helm, cabin, and service panels are built.

This range covers low-load and higher-load branch circuits, with listed amperage options from 2.5A to 50A. Verified configurations are rated for 240V AC and for DC systems up to either 32V DC or 65V DC depending on the selected amperage, so the final selection should be matched to the vessel voltage, conductor size, and protected equipment.

The trip-free action means the handle cannot be held in the ON position during a fault current condition. That matters on board, where vibration, moisture, and tight panel access can make it harder to notice a circuit problem right away.

Key features

• Single-pole toggle breaker for AC or DC branch circuits in marine electrical panels.
• Magnetic hydraulic trip-free breaker type combines switching and circuit protection in one panel device.
• Available in 2.5A, 5A, 8A, 10A, 15A, 20A, 25A, 30A, 40A, and 50A ratings to match different protected loads.
• Color options include black, red, and white toggles, with the available color depending on amperage.
• Interrupt capacity is listed at 3000A at 120V AC, 1500A at 240V AC under TUV, 3000A at 240V AC under UL 1077, and 7500A at 65V DC.
• Operating temperature range runs from -40 degrees C to 85 degrees C for use in hot panels, cold storage conditions, and exposed marine environments.
• Uses #10-32 stainless steel terminal screws and #6-32 stainless steel mounting screws for secure panel installation.
• Meets ABYC standards and carries UL 1077, TUV, CE, and CSA compliance on verified A-Series configurations.

Variants

This A-Series toggle breaker range varies by color and amperage. The available colors are black, red, and white, while the current ratings span from 2.5A through 50A so panel builders can match each breaker to the load and wiring plan.

Across the listed configurations, the product remains a single-pole toggle circuit breaker with magnetic hydraulic, trip-free operation. Voltage rating can vary by amperage, so the selected breaker should be checked against the vessel system and the circuit being protected before installation.

Installation and setup

Install this breaker in a compatible marine electrical panel where the toggle is accessible and the rear terminals are protected from accidental contact. Terminal screw torque is listed at 14 in-lb, while mounting screw torque is listed at 6 in-lb, which helps maintain proper clamping without over-stressing the hardware.

The breaker rating should be selected for the protected circuit, not simply for the equipment load. On a boat, that means matching the breaker to the wire gauge, expected continuous load, inrush behavior, and the applicable AC or DC panel standard.

Compatibility and use on board

This breaker is a practical match for helm panels, cabin distribution panels, electronics circuits, lighting circuits, pumps, and other protected loads where toggle control is preferred over a rocker. The choice of toggle color can also help separate critical circuits, DC loads, AC functions, or service groups in a crowded panel.

For refits, the A-Series format is especially useful when replacing like-for-like breakers in Blue Sea Systems panels or when building a clean, serviceable custom panel with consistent breaker style across multiple circuits.

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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