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Limit / Interlock Switches

36 results found that include 725 products

Heavy-duty limit switches and interlock switches from Grainger are designed to protect people and equipment from malfunctioning machinery. Choose from a wide selection of body styles, contact arrangements and operators. A typical limit switch, rotary switch, or magnetic switch automatically monitors the travel limits of a particular device and can activate or deactivate power to machinery when travel limits have been exceeded. A key switch operates in the same way as a limit switch, but it requires that a key be inserted for the interlock switch to be activated.Close

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  • General Purpose Limit Switches, Wobble Stick, Coil Spring
    • Multiple product options available

      Designed with wobble stick actuators, these mechanical limit switches help keep electrical equipment functioning properly. They activate or deactivate machine power when travel limits have been exceeded.

      Multiple product options available

  • Heavy Duty Limit Switches, Rotary, No Lever
    • Multiple product options available

      Engineered to withstand shock and vibration, these mechanical limit switches help keep electrical equipment functioning properly in a wide range of temperatures. They activate or deactivate machine power when travel limits have been exceeded.

      Multiple product options available

  • General Purpose Limit Switches, Plunger
    • Multiple product options available

      Offering accurate detection and reliable precision, these mechanical limit switches help keep electrical equipment functioning properly. Suitable for packaging, conveying, material handling, and other industrial applications, they activate or deactivate machine power when travel limits have been exceeded.

      Multiple product options available

  • General Purpose Limit Switches, Plunger, Roller Lever
    • Multiple product options available

      Offering accurate detection and reliable precision, these mechanical limit switches help keep electrical equipment functioning properly. They activate or deactivate machine power when travel limits have been exceeded.

      Multiple product options available

  • General Purpose Limit Switches, Plunger, Lever
    • Multiple product options available

      Offering accurate detection and reliable precision, these mechanical limit switches help keep electrical equipment functioning properly. They activate or deactivate machine power when travel limits have been exceeded.

      Multiple product options available

  • General Purpose Limit Switches, Plunger, Roller
    • Multiple product options available

      Offering accurate detection and reliable precision, these mechanical limit switches help keep electrical equipment functioning properly. They activate or deactivate machine power when travel limits have been exceeded.

      Multiple product options available

  • General Purpose Limit Switches, Rotary, Roller Lever
    • Multiple product options available

      Offering accurate detection and reliable precision, these mechanical limit switches help keep electrical equipment functioning properly. They activate or deactivate machine power when travel limits have been exceeded.

      Multiple product options available

  • Heavy Duty Limit Switches, Rotary, Adjustable Roller Lever
    • Multiple product options available

      Engineered to withstand shock and vibration, these mechanical limit switches help keep electrical equipment functioning properly in a wide range of temperatures. They activate or deactivate machine power when travel limits have been exceeded. Applications include packaging, material handling, conveying, machining, and food and beverage handling.

      Multiple product options available

  • Heavy Duty Limit Switches, Wobble Stick
    • Multiple product options available

      Engineered to withstand shock and vibration, these mechanical limit switches help keep electrical equipment functioning properly in a wide range of temperatures. Designed with wobble stick actuators, they activate or deactivate machine power when travel limits have been exceeded.

      Multiple product options available

  • Heavy Duty Limit Switches, Plunger
    • Multiple product options available

      Engineered to withstand shock and vibration, these mechanical limit switches help keep electrical equipment functioning properly in a wide range of temperatures. They activate or deactivate machine power when travel limits have been exceeded.

      Multiple product options available

  • General Purpose Limit Switches, Wobble Stick, Cat Whisker
    • Multiple product options available

      Designed with wobble stick actuators, these mechanical limit switches help keep electrical equipment functioning properly. They activate or deactivate machine power when travel limits have been exceeded. Applications include packaging, material handling, conveying, machining, and food and beverage handling.

      Multiple product options available

  • General Purpose Limit Switches, Plunger, Cross Roller
    • Multiple product options available

      Offering accurate detection and reliable precision, these mechanical limit switches help keep electrical equipment functioning properly. They activate or deactivate machine power when travel limits have been exceeded.

      Multiple product options available

  • General Purpose Limit Switches, Wobble Stick
    • Multiple product options available

      Designed with wobble stick actuators, these mechanical limit switches help keep electrical equipment functioning properly. They activate or deactivate machine power when travel limits have been exceeded. Applications include packaging, material handling, conveying, machining, and food and beverage handling.

      Multiple product options available

  • Explosion Proof Limit Switches, Rotary, Roller Lever
    • HONEYWELL MICRO SWITCH
    • Multiple product options available

      These limit switches are designed with flame paths in the housing that cool exploding gases below the ignition temperature before they reach the explosive gases surrounding the housing. Applications include control valves and actuators, petrochemical plants, conveyors, and material handling.

      Multiple product options available

  • Heavy Duty Limit Switches, Plunger, Roller
    • Multiple product options available

      Engineered to withstand shock and vibration, these mechanical limit switches help keep electrical equipment functioning properly in a wide range of temperatures. They activate or deactivate machine power when travel limits have been exceeded.

      Multiple product options available

  • General Purpose Limit Switches, Rotary, Adjustable Roller Lever
    • TELEMECANIQUE SENSORS
    • Multiple product options available

      Designed with compact enclosures, these mechanical limit switches help keep electrical equipment functioning properly. They activate or deactivate machine power when travel limits have been exceeded. Applications include packaging, material handling, conveying, machining, and food and beverage handling.

      Multiple product options available

  • Severe Duty Limit Switches, Rotary, No Lever
    • SQUARE D
    • Multiple product options available

      Engineered to withstand shock and vibration, these mechanical limit switches help keep electrical equipment functioning properly in harsh environments. They activate or deactivate machine power when travel limits have been exceeded.

      Multiple product options available

  • Water Proof Limit Switches, Lever, Roller
    • CPI
    • Multiple product options available

      Suitable for harsh environments and washdown applications, these waterproof limit switches feature sealed wiring, submersible capability, large overtravel capability, and adjustable mounting brackets. They're designed for 1-way vertical and horizontal movement.

      Multiple product options available

  • Heavy Duty Limit Switches, Rotary, Roller Lever
    • Multiple product options available

      Engineered to withstand shock and vibration, these mechanical limit switches help keep electrical equipment functioning properly in a wide range of temperatures. They activate or deactivate machine power when travel limits have been exceeded. Applications include packaging, material handling, conveying, machining, and food and beverage handling.

      Multiple product options available

  • Water Proof Limit Switches, Lever, Leaf
    • CPI
    • Multiple product options available

      Suitable for harsh environments and washdown applications, these mechanical limit switches help keep electrical equipment functioning properly. They activate or deactivate machine power when travel limits have been exceeded.

      Multiple product options available

  • General Purpose Limit Switches, Rotary, Adjustable Rod
    • Multiple product options available

      Offering accurate detection and reliable precision, these mechanical limit switches help keep electrical equipment functioning properly. They activate or deactivate machine power when travel limits have been exceeded.

      Multiple product options available

  • General Purpose Limit Switches, Rotary, No Lever
    • Multiple product options available

      Offering accurate detection and reliable precision, these mechanical limit switches help keep electrical equipment functioning properly. They activate or deactivate machine power when travel limits have been exceeded.

      Multiple product options available

  • Hazardous Location Limit Switches, Rotary, No Lever
    • Multiple product options available

      Offering accurate detection and reliable precision, these mechanical limit switches help keep electrical equipment functioning properly in hazardous environments. They activate or deactivate machine power when travel limits have been exceeded.

      Multiple product options available

  • Explosion Proof Limit Switches, Plunger
    • HONEYWELL MICRO SWITCH
    • Multiple product options available

      Featuring aluminum bodies, these limit switches are designed with flame paths in the housing that cool exploding gases below the kindling temperature before they reach the explosive gases surrounding the housing. Applications include control valves and actuators, petrochemical plants, conveyors, and material handling.

      Multiple product options available

  • General Purpose Limit Switches, Plunger, Ball Bearing
    • HONEYWELL MICRO SWITCH
    • Multiple product options available

      Engineered to withstand shock, vibration, and washdowns, these switches feature precabled wiring and die-cast zinc housing with a bottom exit. They're suitable for use in outdoor environments.

      Multiple product options available

  • Heavy Duty Limit Switches, Rotary, Adjustable Rod
    • TELEMECANIQUE SENSORS
    • Multiple product options available

      Engineered to withstand shock and vibration, these mechanical limit switches help keep electrical equipment functioning properly in a wide range of temperatures. They activate or deactivate machine power when travel limits have been exceeded.

      Multiple product options available

  • Hazardous Location Limit Switches, Wobble Stick
    • Multiple product options available

      Designed with wobble stick actuators, these mechanical limit switches help keep electrical equipment functioning properly in hazardous environments. They activate or deactivate machine power when travel limits have been exceeded.

      Multiple product options available

  • Water Proof Limit Switches, Plunger, Roller
    • CPI
    • Multiple product options available

      Suitable for harsh environments and washdown applications, these waterproof limit switches feature stainless steel construction, ultra-high-temperature capability, and totally submersible durability. They can be used in amphibious military vehicles, diesel turbochargers, backup alarms, and more.

      Multiple product options available

  • Heavy Duty Limit Switches, Wobble Stick, Cat Whisker
    • TM

      Grainger Choice

    • DAYTON
    • Multiple product options available

      Engineered to withstand shock and vibration, these mechanical limit switches help keep electrical equipment functioning properly in a wide range of temperatures. Designed with wobble stick actuators, they activate or deactivate machine power when travel limits have been exceeded.

      Multiple product options available

  • Foundry Duty Limit Switches, Rotary, No Lever
    • SQUARE D
    • Multiple product options available

      Built to withstand 300° falling sand, these reliable limit switches help keep electrical equipment functioning properly.

      Multiple product options available

  • Hazardous Location Limit Switches, Plunger, Roller
    • Multiple product options available

      Offering accurate detection and reliable precision, these mechanical limit switches help keep electrical equipment functioning properly in hazardous environments. They activate or deactivate machine power when travel limits have been exceeded.

      Multiple product options available

  • Hazardous Location Limit Switches, Plunger
    • Multiple product options available

      Offering accurate detection and reliable precision, these mechanical limit switches help keep electrical equipment functioning properly in hazardous environments. They activate or deactivate machine power when travel limits have been exceeded.

      Multiple product options available

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Note: Product availability is real-time basis and adjusted continuously. The product will be reserved for you when you complete your order. More