Limit Switches

 

Industrial-duty limit switches having aluminum and stainless steel enclosures for a variety of service conditions.  These limit switches feature a die-cast aluminum housing with buna o-ring seal, stainless steel fasteners and Namur compatible shaft.

 

There are five models:

• ALS200: easy mounting Namur and ISO5211 adjustable bracket, captive cover screws, polyester powder coated aluminum weatherproof enclosure

• ALS300: per the ALS200 with quick-set cam which does not require tools for setting

• ALS400: per the ALS200 for hazardous duty (explosion-proof) environments

• ALS500: per ALS400 with special loc-ring cam and shaft retention system for maximum accuracy

• ALS600: per ALS400 with stainless steel housing for enhanced corrosion resistance

 

Features:

• NAMUR and adjustable ISO 5211 mounting bracket

• Clear cover is free from decals and paint to ensure long visibility in direct sunlight and wash down applications

• Multi-view waterproof visual position indicator supports multi-angle visual valve positions

• Captive cover screws

• Quick set cam

• Certified for use in all hazardous areas

  • Class I, Div.1 and 2, Groups A, B, C and D, Ex d IIB T6, Ex d IIC T6

• Designed for high vibration, corrosive and dirty environments

• Catalog of industrial limit switches

 

Limit Switches for Severe Services

Rotary limit switches for severe service applications within the oil/gas, petrochemical, pharmaceutical and power generation industries.  Engineered for a long service life in harsh environments, the Moniteur series limit switches are available with NEMA 4, 4X, 7 and 9 enclosures.

 

Features:

• Indicator shaft is secured to the housing with Loc-Ring Cam and shaft retention system

• Clear cover is free from decals and paint to ensure long visibility in direct sunlight and wash down applications

• Sealed wire terminal connections

• Angled & labeled terminal strip

• Thermoplastic quick-mount bracket with dual o-ring actuator and enclosure seals

• Hazardous Duty Limit Switch Specifications

 

Compact Limit Switches for Valve Position

When space, weight and cost are the primary concerns the ALS low profile rotary limit switch provides both visual and electrical indication of valve position.  The cast aluminum enclosure is provided with either a nickel infused or epoxy coating suitable for most environments.  Adjustment is easily made by removing the cover (which has captive fasteners) and positioning the upper and lower cams.

 

Features:

• NAMUR mounting bracket

• High visibility indicator yellow/black color scheme

• Low profile and compact body deisgn

• IP67, Nema 4 and NEMA 4X enclosures

• Compact Limit Switch Specifications