The Perko Dual Battery Selector Switch allows you to add an extra battery for accessories or emergency use. Designed for marine electrical systems, this switch provides the flexibility to select between two batteries, operate both in parallel for starting or charging, or serve as a main disconnect switch. The unit features a make-before-break design and is ignition protected.
Key Features:
- Four switch positions: Off, Both, Battery 1, Battery 2
- Unique oval design for round hole bulkhead mounting
- Removable actuator key
- Red polycarbonate body with nickel-plated terminals
- Ignition protected for use with 6-50 V.D.C. marine alternators and generators
Technical Specifications:
- Continuous Rating: 140 Amps
- Intermittent Rating (5 Min): 200 Amps
- Starting Rating (30 Sec): 250 Amps
- Face Dimensions: 3-7/8 in. x 3-1/4 in.
- Model Number: 8521DP
Product facts
- CT SKU
- CT-113307
- Model / MPN
- 8521DP
- UPC / GTIN
- 085226784224
- Package dimensions
- 4" X 5" X 8"
- Package weight
- 1.0 lb
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
Shipping & returns
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Fit & compatibility
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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Need help choosing?
Send us the product link or SKU, plus details about your boat, RV, trailer, vehicle, or project. We will help you narrow down the right option when product fit is not obvious.
