Blue Sea Systems UL-489 Circuit Breaker, 1-Pole, 240V AC, Flat Rocker

Overview

The Blue Sea Systems UL-489 Circuit Breaker is a 1-pole AC magnetic hydraulic breaker with a flat rocker actuator for marine AC distribution panels where UL-489 specifications are required. This range covers 5A, 10A, 15A, 20A, 30A, and 50A AC ratings, with a maximum voltage of 240V AC and a 5000A interrupt capacity.

It is suited to vessels that need UL-489 circuit protection, including Navy, Army, Coast Guard, and other vessels covered under CFR 46. The flat rocker sits flush in the ON position, which helps reduce accidental switching in busy helm, cabin, or electrical panel locations.

The breaker uses #10-32 screw terminals in tin-plated brass, with a magnetic hydraulic, trip-free mechanism. Operating temperature coverage from -40 C to 85 C makes it practical for onboard electrical spaces that see wide temperature swings.

Key features

• UL-489 circuit breaker range for marine AC panels where UL-489 specifications are required.
• Available amperage ratings from 5A to 50A AC for matching individual branch circuit requirements.
• 1-pole format for single-pole AC circuit protection in compatible panel layouts.
• Maximum voltage rating of 240V AC for marine AC distribution applications.
• Magnetic hydraulic, trip-free breaker type for circuit protection that cannot be held closed after a trip condition.
• Flat rocker actuator sits flush in the ON position to help limit accidental switching at the panel.
• #10-32 screw terminals in tin-plated brass support secure panel wiring connections.
• 5000A interrupt capacity, with an operating temperature range from -40 C to 85 C.
• Uses #6-32 stainless steel mounting screws, with 7-9 in-lb mounting screw torque and 15-20 in-lb terminal torque.

Variants

This Blue Sea Systems UL-489 flat rocker breaker range varies by amperage rating: 5A, 10A, 15A, 20A, 30A, and 50A AC. The available ratings let the panel builder or installer match the breaker to the protected AC circuit rather than oversizing protection.

Across these listed versions, the shared configuration is the 1-pole flat rocker format, 240V AC maximum voltage, magnetic hydraulic trip-free breaker type, #10-32 tin-plated brass terminals, and 5000A interrupt capacity.

Installation and fit

This breaker belongs in a properly planned AC distribution panel where the circuit rating, conductor size, load type, and applicable marine electrical standards have been checked together. It is a good match for refits, panel builds, and replacement work where a flat rocker breaker with UL-489 compliance is needed.

Use the stated terminal torque and mounting screw torque during installation. Correct torque matters on boats because vibration, heat cycling, and service access can all affect panel connections over time.

Electrical use on board

The amperage choice should follow the circuit being protected, not only the connected equipment label. Typical onboard use may include AC branch circuits in cabins, utility spaces, or service panels, provided the selected rating and installation match the vessel electrical design.

For commercial, government, or inspected vessels, the UL-489 and CFR 46 relevance is especially important because breaker selection is often part of a broader compliance and inspection requirement.

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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