Blue Sea Systems C-Series Flat Rocker Circuit Breaker, Double Pole, 48V DC, Magnetic Hydraulic, Trip-Free

Overview

The Blue Sea Systems C-Series is a double-pole flat rocker circuit breaker for DC marine electrical systems where high-current load protection and manual switching are needed in one panel-mounted device. This magnetic hydraulic breaker is available in 150A DC and 200A DC versions, with two poles, a 48V DC maximum rating, and a 5000A interrupt capacity at 48V DC.

It is a practical match for equipment such as inverters, bow thrusters, and windlasses, where the circuit breaker must handle heavy DC loads while staying accessible at the electrical panel. The flat rocker actuator sits flush in the ON position to reduce the chance of accidental switching, and the colored actuator clearly shows when the breaker is OFF.

The trip-free mechanism means the breaker cannot be held closed after a trip. For installers, the 1/4-20 tin-plated brass terminal studs and 6-32 stainless steel mounting screws support a secure installation in marine electrical panels exposed to vibration and regular service checks.

Key features

• Double-pole C-Series breaker for high-current DC circuits, with 150A DC and 200A DC variants.
• Magnetic hydraulic trip-free construction prevents the breaker from being held closed after a trip.
• Combines circuit protection and manual switching in one device, reducing the need for a separate switch in many panel layouts.
• Rated for up to 48V DC with 5000A interrupt capacity at 48V DC.
• Flat rocker actuator sits flush when ON to help prevent accidental switching in busy electrical panels.
• Colored actuator gives a clear OFF indication during troubleshooting, shutdown, or system checks.
• 1/4-20 tin-plated brass terminal studs support secure cable connections for high-current circuits.
• Operating temperature range from -40° C to 85° C suits engine rooms, technical spaces, and exposed marine electrical compartments.
• 10,000 switching-cycle rating supports regular use as both breaker and service switch.

Variants

This C-Series double-pole flat rocker breaker is offered in two DC amperage configurations. The amperage rating is the main difference between the variants.

Both variants share the same double-pole format, flat rocker actuator style, magnetic hydraulic trip-free breaker type, 48V DC maximum rating, 5000A interrupt capacity at 48V DC, and 1/4-20 tin-plated brass terminal studs.

• 7475: 150A DC. This version suits high-current DC circuits where the system design calls for a 150A breaker in a double-pole panel position.
• 7476: 200A DC. This version suits high-current DC circuits where the system design calls for a 200A breaker in the same C-Series double-pole format.

Installation and fit

This breaker is intended for panel mounting in marine electrical systems. The terminal stud torque is 35 in-lb, and the mounting screw torque is 6 in-lb, which helps installers tighten the breaker correctly without damaging the hardware or panel.

The double-pole layout allows both poles to trip together if one pole trips, which is important in circuits where paired conductors or linked circuit control must open together. Before installation, match the breaker amperage to the wire size, load requirements, system voltage, and the vessel electrical plan.

Use on board

For cruising boats, sportfishers, and workboats with heavy DC equipment, this breaker gives the operator a clear and accessible way to shut down or reset a protected circuit. It is especially useful in battery and load distribution areas where service access, clear status indication, and dependable trip behavior matter during real-world use.

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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