ITW Switches 49-59121 SPST Momentary Pushbutton Switch, Black

The ITW Switches 49-59121 is a single-pole single-throw (SPST) momentary action sealed pushbutton switch, featuring a solder terminal, round bezel, and a black button. Designed to fit a 16mm panel cut-out, it utilises a snap-fit retaining mechanism for secure installation. The switch boasts a maximum current rating of 10A and SPDT-DB contacts for versatile circuit compatibility, including reliable DC load switching.

Constructed from PBT (Polybutylene Terephthalate), this switch offers durability and is suitable for surface printing, sublimation, or engraving. The front-mounted design is secured with an M16 nut (requiring a 20mm spanner) and includes a sealing washer for IP67-rated ingress protection—fully sealed against dust and water. For optimal sealing, tighten to a recommended torque of 1-1.5Nm (max 2Nm).

Key Specifications

• Travel Distance: 2.3mm (nominal)
• Temperature Range: Up to +105°C
• Contact Configuration: SPST-NO-DB (Double Break)
• Panel Cut-out Diameter: 16.1mm
• Actuator Style: Round domed
• Mounting: Panel mount with solder lug terminals
• IP Rating: IP67 (fully sealed)

Applications

• Communications & Networking
• Sensing & Instrumentation
• Aerospace
• Defence & Military

Engineered for reliability in demanding environments, this switch combines robust construction with precise electrical performance.