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