The NKK Switches S21AL is a rugged DPST (Double-Pole Single-Throw) toggle switch designed for reliable on-off control in industrial, automotive, and electronic equipment. Part of NKK’s S Series medium-capacity toggle switches, it provides dependable switching performance with a sealed construction suitable for demanding environments.

This switch features a locking lever actuator with a chrome-plated brass handle, offering positive tactile feedback and preventing accidental operation. Its panel-mount design with solder-lug terminals allows secure installation in control panels, instrumentation systems, and custom electronics assemblies.

The S21AL supports up to 15A current at 125VAC (or 30VDC), making it suitable for switching moderate electrical loads. The switch also includes IP67 ingress protection, meaning it is dust-tight and resistant to water intrusion—ideal for outdoor or harsh operating conditions.

Key Features

• DPST On-Off toggle switch for dual-circuit control

• 15A current rating for medium-power switching applications

• Locking lever actuator prevents accidental switching

• Panel-mount design with solder-lug terminals

• IP67 sealed construction for dust and water resistance

• Chrome-plated brass actuator for durability and corrosion resistance

Technical Specifications

• Switch Type: Toggle

• Circuit: DPST (Double Pole Single Throw)

• Function: On-Off

• Current Rating: 15A AC / up to ~20A DC

• Voltage Rating: 125VAC or 30VDC

• Mounting Type: Panel mount

• Termination: Solder lug

• Actuator Length: ~23.5 mm

• Panel Cutout: 12.5 mm diameter

• Operating Temperature: −30 °C to 70 °C

• Ingress Protection: IP67 (dust-tight, waterproof)

• Electrical Life: ~25,000 cycles