• Blue Sea Systems 8689 m-Series Dual Circuit Plus Battery Switch
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Brand: Blue Sea Systems

Blue Sea Systems 8689 m-Series Dual Circuit Plus Battery Switch

Blue Sea Systems 8689 m-Series Dual Circuit Plus Battery Switch

$445.61
$445.61
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About this product

The Blue Sea Systems 8689 m-Series Dual Circuit Plus Battery Switch is designed for twin-engine configurations, providing independent battery bank management and circuit protection. This unit simplifies operation by isolating engine and house circuits while allowing for emergency cross-connection.

  • Includes one 100A C-Series flat rocker circuit breaker and three 15A push-button thermal circuit breakers.
  • Protects sensitive electronics from voltage sags and spikes during engine cranking.
  • Provides main DC circuit protection alongside high-ampere load protection.
  • Enables independent battery discharge and supports automated charging when paired with an Automatic Charging Relay.
  • Includes 4218 square format labels and 4140 24-hour round labels.
  • Regulatory note: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer, birth defects, or other reproductive harm.

Manuals & videos

  • Secure checkout
  • 21-day return requests
  • Free standard shipping $100+

Product facts

CT SKU
CT-100623
Model / MPN
8689
UPC / GTIN
632085086893
Package dimensions (H × W × L)
6" X 9" X 11"
Package weight
3.4 lb
Country of origin
UNITED STATES

Specifications

Type
Blue Sea 8689 m-Series Dual Circuit Plus 2 of PN 6011
California Proposition 65 warning
<p><img src="https://productimageserver.com/prop65/6pt.png" alt="Warning" /><strong>WARNING:</strong> This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to <a href="http://P65Warnings.ca.gov">P65Warnings.ca.gov</a>.</p>

Fit-sensitive item: confirm measurements, model numbers, and manufacturer details before ordering. Tug & Tow does not guarantee universal compatibility from a product page alone.

Shipping & returns

Request an eligible return within 21 calendar days after delivery. Every physical return requires written approval and an RMA number and must be shipped within five business days after the RMA is issued. The customer pays return shipping for an ordinary return. Tug & Tow provides prepaid return shipping for a verified damaged, defective, short, or incorrect shipment. We do not charge a restocking fee. See Shipping & Returns for eligibility, exclusions, and details.

Fit & compatibility

Review the product title, description, images, dimensions, part numbers, and manufacturer details before purchase. For fit-sensitive items, confirm compatibility with your boat, RV, trailer, vehicle, or equipment.

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