11TW1-1

What type of component is this?

It is a miniature military-grade toggle switch from the MICRO SWITCH TW Series, designed for demanding panel-mounted switching applications where compact size, sealing and robust electrical switching are required.

What switching configuration does it use?

The 11TW1-1 is a single-pole, three-position toggle switch with an ON-OFF-ON circuit arrangement. In the keyway position it makes terminals 2-1, the centre position is OFF, and the opposite keyway position makes terminals 2-3.

Is the toggle action maintained or momentary?

This version uses maintained toggle action in its ON positions. That means the lever remains in the selected position until it is manually moved to another position.

What terminal style does it have?

This model is listed with solder terminals, making it suitable for wired panel assemblies where permanent soldered connections are preferred.

What bushing size is used for panel mounting?

It uses a 15/32 inch bushing with a 15/32-32 UNS thread. This is intended for secure panel mounting in compact switch installations.

Is it sealed against environmental exposure?

Yes. The TW Series sealed standard toggle construction is designed to help prevent the entrance of liquid or dust around the switch assembly, making it suitable for demanding indoor and outdoor panel environments.

What temperature range is it designed for?

The TW Series specification gives an operating temperature range of -65 °C to 71 °C, or -85 °F to 160 °F.

What electrical ratings apply to this switch family?

The TW Series ratings include up to 5 A resistive, 2 A inductive and 1 A lamp load at 30 Vdc or 115 Vac. The applicable rating should always be checked against the intended circuit load.

What kind of applications is it typically used in?

This type of miniature sealed toggle switch is commonly used in aerospace, military-style panels, industrial control panels, vehicle controls and other equipment where vibration, shock, dust, water exposure or limited rear-panel space may be factors.

What is the related military number for this configuration?

For this configuration, the related military number listed in the TW Series order guide is MS27718-21-1.

How many poles does this switch have?

It is a single-pole switch. In practical terms, it controls one circuit path, switching between the 2-1 ON position, centre OFF position and 2-3 ON position.

What are the approximate overall dimensions for the TW Series miniature toggle design?

The TW Series specification lists a compact body size of approximately 49.78 mm high x 14.61 mm wide x 14.61 mm deep, or 1.96 in x 0.575 in x 0.575 in.