Blue Sea Systems DC M-Series Blank Panel Square, For M-Series Battery Switches, 4.75 x 4.88 in

Overview

The Blue Sea Systems 1139 is a square blank panel for mounting an M-Series battery switch in a DC electrical panel layout. Its face measures 4.88 in. wide by 4.75 in. high, which makes it a straightforward match for installations built around the Blue Sea M-Series switch footprint.

This panel is useful when you are building a battery switch station from separate parts or replacing a worn panel face without changing the rest of the setup. It gives the switch opening a clean finished look and keeps the battery management area more orderly at the helm, inside a console, or in an electrical locker.

This is the panel only and does not include the switch. That makes it a practical choice for refits where the switch and cabling are being selected separately to suit the boat.

Key features

• Made for Blue Sea Systems M-Series battery switch mounting applications
• Square panel format with a 4.88 in. x 4.75 in. face size
• Useful for new panel builds, replacement work, or matching an existing M-Series layout
• Black panel finish works well with modern DC switch and battery management panels
• Panel-only configuration lets you pair it with the specific M-Series switch needed for the boat

Compatibility and fit

This panel suits installations that use a Blue Sea M-Series battery switch and need the correct square mounting face. Before ordering, check that your switch is part of the M-Series range and confirm there is enough flat mounting space for the panel dimensions.

It is a good match for owners replacing a damaged or weathered panel face, and for builders putting together a custom battery switching station where the mounting panel and switch are purchased separately.

Installation and setup

On most boats, a panel like this is fitted where the battery switch needs to stay accessible for normal operation and emergency isolation, while still being protected from accidental knocks. Common mounting spots include inside a center console, near the main DC distribution area, or in a service compartment close to the battery bank.

Because this part is only the panel, the rest of the installation can be planned around the boat's cable routing, switch selection, and access requirements without forcing a preconfigured assembly.

What’s included

• One square blank panel for M-Series battery switch mounting

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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.

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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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