Micro Switch – Still The Industry Standard for Heavy-Duty Limit Switches

Honeywell HDLS limit switches are offered in two styles: non plug-in design and plug-in design. With plug-in construction, the wiring and conduit connection is made to the base receptacle. This feature reduces downtime as the plug-in unit can be removed and replaced without disconnecting the wiring or conduit connections to the switch.

HDLS Series heavy-duty limit switches include boss-and-socket head design for secure head-to-body retention, unique all-metal drive train for consistent operating characteristics even at high temperatures, and self-lifting pressure plate terminals to save wiring time. With its rugged housing, the HDLS Series is sealed to NEMA 1, 3, 4, 4X, 6, 6P, 12, 13; IP65/66/67. Side rotary versions may be modified for CW and/or CCW operation, while operating heads may be rotated 90°. Low and high temperature sealing options available.

Heavy-Duty Limit Switches

Honeywell offer a rugged, die-cast body with multiple mounting and actuator options. Low- and high-temp construction and factory-sealed, pre-wired versions available.


  • Plug-in and non-plug-in types
  • Sealing : IP65/66/67
  • Temperature range : -40 to 120°C
  • Actuators/levels :
  • top pin plunger
  • top pin plunger, adjustable
  • top roller plunger
  • top rotary
  • side rotary
  • side rotary (maintained)
  • side pin plunger
  • side pin plunger, adjustable
  • side pin plunger, maintained
  • side roller plunger
  • wobble

Approvals :

  • UL, CE, CSA, CCC, EN60947-1, EN60947-5-1

Potential applications include food and beverage, construction and agriculture equipment, material handling, rail, industrial valves, chemical and food processing, shipboard, caustic waste handling, and power generation.

For more info, contact Sales

Click here to download the Honeywell HDLS PDF product catalogue

Click here to download the White Paper

Click here for Honeywell PDF Range Guide

Honeywell Sensors

Honeywell Sensors

Trusted by Medical Equipment Makers Globally

Your equipment is critical to saving lives. Make sure it relies on the best sensing technology.

The equipment you make saves lives – and failure is not an option. So make sure the sensor technology in your equipment is up to the task.

Top medical equipment suppliers from across the globe have trusted sensor technology from Honeywell for accuracy, sensitivity, reliability and long-term stability in ventilator applications.

Honeywell expertise includes:

  • AIRFLOW SENSORS to help monitor a patient breathing
  • HUMIDITY SENSORS to monitor and control the moisture content of the air delivered to the patient
  • OXYGEN SENSORS to ensure and control oxygen concentration level of the air
  • TEMPERATURE SENSORS to monitor and control the temperature of the air
  • PRESSURE SENSORS to monitor patient breathing, detect when air and oxygen inlet filters are clogged and to monitor and control the flow of air and oxygen delivered to ventilators

Sensor types include :

  • Pressure sensors
  • Force sensors
  • Airflow sensors
  • Oxygen sensors
  • Load Cells sensors
  • Humidity & Temperature sensors
  • Temperature sensors
  • Magnetic Position sensor ICs
  • SpO2 sensors

With more than 100 years of technology development and innovation, we’ve earned a well-deserved reputation for quality and reliability. And in the medical equipment business, quality and reliability can’t be platitudes – they must be top priorities.

For more info, contact Sales

Click here to open Honeywell sensors webpage

Click here to download Honeywell’s “Sensing Potential Medical Applications” PDF brochure