White Rodgers 120-105851 12V DC Solenoid Contactor SPNO 100A Continuous Duty

The White Rodgers 120-105851 is a heavy-duty solenoid contactor designed for continuous operation in automotive, marine, RV, and industrial applications. This single pole, normally open (SPNO) contactor features a grounded coil design that provides enhanced safety and reliable performance in demanding electrical systems.

Key Features:

• 12 VDC grounded coil with 16 ohm resistance for reliable operation
• 100 amp continuous duty rating with 400 amp inrush capacity
• Silver alloy contacts provide superior conductivity and long service life
• Continuous duty cycle allows for extended operation without overheating
• Water resistant construction protects against moisture and environmental exposure
• Operating temperature range: -20°F to 150°F (-28°C to 65°C)
• Standard bracket mounting with horizontal or coil-up orientation recommended
• Three terminal configuration: Two 5/16-24 contact terminals and one #10-32 coil terminal

Technical Specifications:

• Contact terminal torque: 45-55 inch-pounds
• Coil terminal torque: 12-18 inch-pounds
• Mechanical life: 100,000 cycles (no load)
• Voltage rating: 500 volts
• RoHS compliant

This solenoid is commonly used in RV slide-out systems, starter circuits, winch controls, and other high-current DC switching applications requiring continuous duty operation. The grounded coil design ensures proper circuit protection and reliable switching performance.