Limit Switches

Limit switches are a contact proximity sensor device that consists of an actuator mechanically linked to a set of output contacts. When an object comes into contact with the actuator, the device operates the contacts to make or break an electrical connection.

Limit Switch Makeup

Limit switches are made up of three key components:
•Actuator Head - The actuator is the part of the switch that makes physical contact with the object. In some limit switches, the actuator is attached to an operating head which translates a rotary, linear, or perpendicular motion to open or close the electrical contacts of the switch.


•Switch Body – The switch body is the component containing the electrical contact mechanism, the contacts within the body open or close the electrical circuit when the actuator is activated.


•Receptacle/Terminals - The component containing the terminal screws or screw/clamp assembly necessary for wiring purposes.



Actuator Types

Limit switches are available with a wide range of actuator types. The type of actuator used can be determined by the mounting position, force required and objects to be detected.
•Rotary Lever - with lever actuators, a cam or plate hits the end of the lever arm which in turn rotates a shaft and operates the contacts in the switch. The rotation may be spring returned (momentary) or maintained.


•Plunger - Plunger types are best where short controlled machine movements are present or where mounting space does not permit a lever type.


•Cat Whisker or Coil Spring – Longer actuators with a coil wire that can be moved/bent in multiple directions. Typically used in conveying applications to count objects as they pass by.


•Forked – Used with maintained contacts, consisting of two roller levers. One roller will trip the switch and when the second is moved to the opposite direction it will reset the switch.

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Omschrijving Prijs Actuator Type Pole and Throw Configuration Normal State Configuration IP Rating Maximum Current Housing Material Maximum AC Voltage Maximum DC Voltage Connection Type Contact Type Series Terminal Type Length Width
RS-stocknr. 199-068
FabrikantnummerAZ7110CEJ
FabrikantPanasonic
€ 10,80
Each
Aantal stuks
Plunger SPDT NO/NC IP64 10 A - 250V 115V - - AZ7 Screw 61mm 70.5mm
RS-stocknr. 199-135
FabrikantnummerAZD1052CEJ
FabrikantPanasonic
€ 11,35
Each
Aantal stuks
Plunger DPST NO/NC IP67 6 A - 380V 220V - - AZD1 Screw 79mm 30mm
RS-stocknr. 199-040
FabrikantnummerAZ7100CEJ
FabrikantPanasonic
€ 10,01
Each
Aantal stuks
Plunger SPDT NO/NC IP64 10 A - 250V 115V - - AZ7 Screw 47mm 70.5mm
RS-stocknr. 199-078
FabrikantnummerAZ7166CEJ
FabrikantPanasonic
€ 21,57
Each
Aantal stuks
Coil Spring SPDT NO/NC IP64 10 A - 250V 115V - - AZ7 Screw 124.5mm 70.5mm
RS-stocknr. 199-028
FabrikantnummerAZ8108CEJ
FabrikantPanasonic
€ 27,14
Each
Aantal stuks
Roller Lever DPST NO/NC IP64 5 A - 250V 125V - - AZ8 Screw 96.5mm 28mm
RS-stocknr. 480-9110
FabrikantnummerAZ8104CEJ
FabrikantPanasonic
€ 22,89
Each
Aantal stuks
Roller Lever DPST NO/NC IP64 5 A - 250V 125V - - AZ8 Screw 96.5mm 28mm
RS-stocknr. 199-125
FabrikantnummerAZ8111CEJ
FabrikantPanasonic
€ 22,86
1 Box of 1
Box(es)
Plunger DPST NO/NC IP64 5 A - 250V 125V - - AZ8 Screw 82.5mm 28mm
RS-stocknr. 811-3407
FabrikantnummerAZH1224
FabrikantPanasonic
€ 16,84
Each
Aantal stuks
Lever SPDT NO/NC IP54 (Terminal), IP64 (Switch) 100 mA Plastic - 30V Wire Lead Momentary Action - Screw 58.9mm 18mm
RS-stocknr. 199-129
FabrikantnummerAZ8112CEJ
FabrikantPanasonic
€ 30,03
Each
Aantal stuks
Plunger DPST NO/NC IP64 5 A - 250V 125V - - AZ8 Screw 94mm 28mm
RS-stocknr. 199-090
FabrikantnummerAZD1053J
FabrikantPanasonic
€ 29,83
Each
Aantal stuks
Roller Lever DPST NO/NC IP67 6 A - 380V 220V - - AZD1 Screw 69mm 30mm
RS-stocknr. 811-3390
FabrikantnummerAZH1044
FabrikantPanasonic
€ 14,25
Each
Aantal stuks
Roller Lever SPDT NO/NC IP54 (Terminal), IP64 (Switch) 5 A Plastic 250V - Wire Lead Momentary Action - Screw 58.9mm 18mm
RS-stocknr. 199-084
FabrikantnummerAZD1057J
FabrikantPanasonic
€ 41,42
Each
Aantal stuks
Coil Spring DPST NO/NC IP67 6 A - 380V 220V - - AZD1 Screw 183mm 30mm
RS-stocknr. 199-002
FabrikantnummerAZ8169CEJ
FabrikantPanasonic
€ 22,89
Each
Aantal stuks
Coil Spring DPST NO/NC IP64 5 A - 250V 125V - - AZ8 Screw 156mm 28mm