Honeywell Sensing & Control MICRO SWITCH EN NH Limit Switches are bushing-mount designed, manufactured, and qualified to aerospace standards. These Honeywell devices provide a durable switch for commercial aircraft and commercial and heavy-duty ground-based equipment. Other applications for EN NH Limit Switches include off-road equipment, where severe environments are encountered. MICRO SWITCH EN products are highly configurable, offering a variety of integral actuators, electrical circuitries, and electrical terminations.