Blue Sea Systems ATD Automatic Timer Disconnect, 12V, 120A, IP67, Low Voltage Disconnect

Overview

The Blue Sea Systems 7615 is a 12V DC automatic timer disconnect that can also be set up as a low-voltage disconnect, an automatic charging relay, or a signal-controlled solenoid. It is rated for 120A continuous duty and 210A intermittent duty for 5 minutes, with selectable disconnect delays of 15 minutes, 30 minutes, 1 hour, 1.5 hours, 2 hours, or 4 hours and low-voltage trip points at 11.0V, 11.5V, or 12.0V.

This makes it useful when you want a circuit to stay live for a short period after a key switch or control signal is turned off, or when you want non-critical DC loads to drop before the battery is drawn down too far. On board, that can help with house accessories, electronics, or other loads that should not keep pulling from the battery after the engine is shut down.

Key features

• 12V DC unit with 120A continuous rating and 210A intermittent rating for 5 minutes
• Can be configured as a timer disconnect, low-voltage disconnect, automatic charging relay, or solenoid
• Selectable disconnect delays of 15 minutes, 30 minutes, 1 hour, 1.5 hours, 2 hours, or 4 hours
• Selectable low-voltage disconnect points at 11.0V, 11.5V, and 12.0V
• Charge-sense thresholds of 13.0V to connect and 12.75V to disconnect in relay mode
• Sealed to IP67 for mounting in spaces that may see spray or washdowns
• 3/8"-16 (M10) tinned copper studs accept cable up to 1/0 AWG
• LED status indicator and insulated cover help with setup and service checks

Installation and setup

This unit is built for 12V systems and works across a 9.5V to 16V input range. It uses 3/8"-16 (M10) studs and is sized for 1 AWG cable to meet its current rating, with room for cable up to 1/0 AWG. In a typical installation it is placed between the battery and the load side you want controlled, then triggered by a 12V signal or by charge sense depending on how the switch settings are configured.

The insulated terminal cover helps protect the connections once the wiring is complete, which matters in battery compartments and other tight service spaces where accidental contact is a real concern. The LED indicator gives a quick visual check of operating status without needing to pull the wiring apart.

Compatibility and fit

It is built for 12V DC only, so it should be matched to a 12V house bank, start battery, or control circuit. The sealed body suits locations that may see spray, washdowns, or persistent moisture, provided the cable terminations and mounting are done properly.

It suits boats that need timed load shedding, low-voltage battery protection, or automatic battery combining in a 12V charging setup. That can make sense for small cruisers, fishing boats, and workboats where house accessories or other non-critical loads need to disconnect automatically instead of being left on until the battery is flat.

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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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