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

Overview

The Blue Sea Systems C-Series Toggle Circuit Breaker is a single-pole magnetic hydraulic breaker for marine AC and DC circuit protection where a toggle switch and resettable breaker need to share the same panel position. It is used on higher-load boat circuits such as inverters, bow thrusters, windlasses, and other equipment that can see start-up surge.

The range covers 5A through 100A ratings, with white toggle versions for standard installations and a red 100A ignition-protected version for locations where ignition protection is required. Most models are rated up to 240V AC and 80V DC, while the higher-amperage versions use lower DC voltage limits, so the selected amperage and voltage rating should be matched to the circuit design before installation.

The trip-free mechanism means the toggle cannot be held closed after the breaker trips. That matters on board because a faulted circuit should stay open until the cause is found, rather than being forced back on at the panel.

Key features

• Single-pole C-Series toggle breaker for panel-mounted switching and circuit protection in one device.
• Magnetic hydraulic, trip-free operation helps keep a faulted circuit open after a trip.
• Amperage options from 5A to 100A support a range of boat loads, from smaller branch circuits to heavier equipment circuits.
• Rated for AC and DC use, with model-specific voltage limits that must be checked against the vessel system.
• 1/4-20 tin-plated brass terminal studs provide a secure connection point for properly sized marine cable terminals.
• #6-32 stainless steel mounting screws support installation in compatible C-Series breaker panels.
• Operating temperature range of -40 degrees C to 85 degrees C suits exposed electrical spaces, machinery areas, and cabins subject to wide temperature changes.
• Rated for 10,000 switching cycles, allowing the breaker to serve as a control switch where regular manual operation is part of the installation.

Variants

This C-Series single-pole toggle breaker range varies by amperage, actuator color, and ignition-protection status. The available amperages run from 5A, 10A, 15A, 20A, 25A, and 30A up through 50A, 60A, 80A, and 100A, so the correct version should be selected based on the protected cable size, expected load, and the circuit protection plan for the boat.

White versions are listed as not ignition protected. The red 100A version is the ignition-protected option in this range and is the one intended for installations where that rating is required. The single-pole toggle layout, magnetic hydraulic trip-free breaker type, tin-plated brass terminal studs, and stainless mounting screws are consistent across the range.

Installation and setup

Install the breaker in a compatible panel cutout or Blue Sea Systems C-Series breaker panel, with enough clearance behind the panel for the terminal studs, cable bends, boots, and service access. Use properly crimped terminals, support the cable so vibration is not carried by the studs, and torque the terminal connections to 35 in-lb where that specification applies.

The breaker rating should protect the wire, not just match the device on the circuit. On motor loads such as windlasses and thrusters, start-up current can be much higher than running current, so breaker sizing should be checked against the equipment manual, cable ampacity, voltage drop, and the applicable marine electrical standard for the vessel.

Compatibility and fit

This is a C-Series, single-pole toggle breaker, so it is a good match for panels built around that breaker format. It is not a drop-in substitute for every marine breaker style, and it should be compared against the existing panel opening, rear clearance, terminal layout, amperage rating, and voltage rating before replacing an older breaker.

The 5A to 60A white models are commonly listed with an 80V DC maximum, while the 80A and 100A white models use a 65V DC maximum. The red 100A ignition-protected version is listed with a 48V DC maximum and a different interrupt rating, so it should be treated as its own configuration rather than a color change only.

Use cases on board

These breakers are suited to boats where the helm, battery panel, DC distribution panel, or machinery-space panel needs resettable circuit protection that can also be used as a manual switch. They are especially relevant for circuits feeding equipment with meaningful current draw, including inverters, bow thrusters, and windlasses.

The ignition-protected 100A red version is the practical match for installations that require that protection level, such as certain gasoline-engine spaces or compartments where ignition-protected equipment is specified. For general DC distribution panels outside those areas, the white non-ignition-protected versions cover the wider amperage range.

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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