3-Pin Round Rocker Switch (ON/OFF/ON) - 20mm SPDT | ATMOSFÆR ENGINEERING

Technical Specifications:

• Switch Type: SPDT (Single Pole Double Throw)
• Positions: 3-position (ON/OFF/ON)
• Contact Configuration: 3-pin
• Rated Current: 6A @ 250V AC, 10A @ 125V DC
• Terminal Type: Pre-wired connector with quick-release tabs
• Mounting Hole Diameter: 20mm
• Panel Thickness: Up to 5mm (typical)
• Mounting Type: Snap-in / press-fit
• Body Material: High-temperature resistant plastic
• Contact Material: Copper (high electrical conductivity)
• Color: Black (typical)
• Switch Action: Maintained (stays in position)
• Protection: Water-resistant (not fully waterproof)
• Electrical Life: 10,000+ cycles
• Operating Temperature: -25°C to +85°C

Features:

• Three-position switching: ON-OFF-ON
• Pre-wired connector for easy installation (no soldering)
• Quick-release wire removal (press bulge on connector)
• Corrosion-resistant contacts
• High-temperature resistant housing
• Snap-in panel mounting
• Heavy-duty copper contacts

Pin Configuration:

• Center Pin: Common terminal
• Side Pins: Two switched outputs (ON positions)
• Center OFF: Both outputs disconnected

Typical Wiring:

• Common (center) → Power source or load
• Pin 1 → Circuit A / Forward
• Pin 2 → Circuit B / Reverse

Applications:

• DC motor direction control (forward/off/reverse)
• Bilge pump switching
• Winch control (up/off/down)
• Automotive accessories (12V/24V)
• Marine/boat electronics
• RV/camper systems
• Polarity reversal circuits
• Dual-circuit control panels
• DIY robotics and automation
• Power tool modifications

Installation:

• Drill 20mm hole in panel
• Insert switch from front until it snaps into place
• Connect pre-wired harness to circuit
• Press bulge on connector to remove wires if needed

Important Notes:

• Water-resistant but not submersible - seal properly for marine use
• Ensure load current does not exceed 10A @ 125V DC rating
• For 12V/24V automotive/marine systems
• Use appropriate wire gauge (minimum 16 AWG for 10A)
• Center-off position isolates both circuits

Includes:

• 1x ON/OFF/ON rocker switch
• 1x pre-wired connector set

Perfect for reversing motor direction, dual-circuit control, and automotive/marine switching applications. Pre-wired design eliminates soldering for fast installation.