Blue Sea Systems C-Series Lockout Slide, For AC Circuit Breakers, 2-Position

Overview

The Blue Sea Systems C-Series Lockout Slide is a mechanical interlock accessory for C-Series AC circuit breakers, used when a boat has two AC power sources that must not be energized at the same time. It lets only one breaker in the paired source selector arrangement be switched on, helping keep shore power, generator, or inverter feeds from being connected together.

This part fits C-Series double pole or triple pole circuit breakers, depending on the selected version. It uses the existing circuit breaker mounting screw holes, so it can be added to a compatible AC panel without special panel modification.

Key features

• Allows only one of a pair of AC circuit breakers to be activated at a time.
• Helps prevent two AC sources, such as shore power and a generator or inverter, from being mixed.
• Fits Blue Sea Systems C-Series circuit breakers in double pole or triple pole configurations.
• Installs using the circuit breaker mounting screw holes already present on the panel.
• Does not require special panel modification when used with compatible C-Series breakers.
• Useful for AC source selection panels on cruising boats, fishing boats, and vessels with shore power plus onboard AC generation or inversion.

Variants

This lockout slide is offered in two configurations to match the breaker pole arrangement used in the AC panel.

The pole count is the key difference between the variants. The function remains focused on source lockout for compatible C-Series AC circuit breakers.

• 4130: Pole 2. This version is for a 2-position, 2-pole C-Series circuit breaker setup where two AC sources need mechanical lockout control.
• 4131: Pole 3. This version is for a 2-position, 3-pole C-Series circuit breaker setup, often used where the AC source switching arrangement requires three-pole breaker control.

Installation and setup

The lockout slide mounts at the breaker face using the existing circuit breaker mounting screw holes. This keeps the installation straightforward for panel builders, marine electricians, and boat owners updating an AC source selection panel.

Before installation, confirm the breaker family and pole count in the panel. The slide must match the double pole or triple pole C-Series breaker arrangement being used, since the two versions are not interchangeable by pole count.

Electrical source control

This accessory is a good match for boats with more than one AC input or supply path, such as shore power with a generator, or shore power with an inverter feed. In those systems, the lockout slide adds a simple mechanical layer that supports safe source selection at the breaker panel.

It is not a substitute for proper AC system design, wiring, labeling, or overcurrent protection. It should be installed as part of a correctly configured marine AC panel using compatible Blue Sea Systems C-Series breakers.

What’s included

• Lockout slide
• Mounting screws

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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