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. 360-8455
FabrikantnummerZCKJ1
€ 36,80
Each
Aantal stuks
- DP NO/NC IP65 10 A Metal 240V 250V - Snap Action OsiSense XC Screw 77mm 40mm
RS-stocknr. 235-953
FabrikantnummerXCKJ10541
€ 55,58
Each
Aantal stuks
Lever SPDT NO/NC IP66 10 A Metal 600V 600V - Snap Action OsiSense XC Screw 77mm 40mm
RS-stocknr. 334-612
FabrikantnummerBZE7-2RN2-C
FabrikantHoneywell
€ 149,06
Each
Aantal stuks
Roller Lever - - IP65 - - - - - - - Screw - -
RS-stocknr. 396-2513
FabrikantnummerGXA51A1B
FabrikantHoneywell
€ 283,50
Each
Aantal stuks
Rotary Lever SPDT NO/NC IP66, IP67 4 A Die Cast Zinc 250V - - Snap Action GXA Wire Lead 102.9mm 42mm
RS-stocknr. 244-749
FabrikantnummerXCKJ10513H29
€ 64,80
Each
Aantal stuks
Lever SPDT NO/NC IP66 10 A Zinc Alloy 240V 250V - Snap Action OsiSense XC Screw 77mm 40mm
RS-stocknr. 757-9140
FabrikantnummerD4B4111N
FabrikantOmron
€ 44,09
Each
Aantal stuks
Roller Lever DPST NO/NC - - Metal - - Screw - D4B-N - 99.5mm 40mm
RS-stocknr. 691-7147
Fabrikantnummer91MCE1-P1
FabrikantHoneywell
€ 23,24
Each
Aantal stuks
Plunger - NO/NC IP67 10 A Die Cast Zinc 300V 250V - Snap Action 91MCE Wire Lead 50mm 30mm
RS-stocknr. 691-7204
FabrikantnummerBZ-2RW82272-A2
FabrikantHoneywell
€ 28,10
Each
Aantal stuks
Roller Lever SPDT - - 1 A Plastic 125V - - Snap Action BZ Screw 41.14mm 1.94in
RS-stocknr. 237-2587
Fabrikantnummer14CE102-1
FabrikantHoneywell
€ 162,10
Each
Aantal stuks
Plunger SPDT NO/NC IP65 5 A Die Cast Zinc 240V 250V - Snap Action 14CE Wire Lead 49mm 40mm
RS-stocknr. 470-4396
FabrikantnummerTV1H 236-11z
FabrikantSchmersal
€ 39,59
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Aantal stuks
Lever DPDT NO/NC IP67 4 A Thermoplastic 230V 24V - Slow Action - Screw 58.5mm 30mm
RS-stocknr. 808-7651
FabrikantnummerGLLA01B
FabrikantHoneywell
€ 14,97
Each
Aantal stuks
Plunger SPDT NO/NC IP66 10 A Plastic 300V 250V 1/2 in Conduit Snap Action GLL - 30.5mm 62mm
RS-stocknr. 235-925
FabrikantnummerXCKJ161
€ 53,20
Each
Aantal stuks
Plunger SPDT NO/NC IP66 10 A Metal 600V 600V - Snap Action OsiSense XC Screw 77mm 40mm
RS-stocknr. 828-1027
FabrikantnummerWL-CA12-GN
FabrikantOmron
€ 105,10
Each
Aantal stuks
Adjustable Roller Lever DPST NO/NC IP67 2 A Aluminium Alloy, Stainless Steel 250V 48V G1/2 Conduit Double Break WL Screw 94.1mm 40mm
RS-stocknr. 308-1822
FabrikantnummerGLCB01A1A
FabrikantHoneywell
€ 42,10
Each
Aantal stuks
Roller Lever SPDT 1NO/1NC NO/NC IP66 10 A Die Cast Zinc 300V 300V Internal Screw Terminal Contact Block Snap Action GLC PG13.5 Conduit 68.5mm 30.5mm
RS-stocknr. 757-9159
FabrikantnummerD4B4116N
FabrikantOmron
€ 51,66
Each
Aantal stuks
Roller Lever DPST NO/NC - - Metal - - Screw - D4B-N - 99.5mm 40mm
RS-stocknr. 447-3604
FabrikantnummerZCD21
€ 18,10
Each
Aantal stuks
- DP NO/NC - 1.5 A Metal 240V 250V - Snap Action OsiSense XC Screw 65mm 31mm
RS-stocknr. 308-1692
FabrikantnummerGLDB01A2A
FabrikantHoneywell
€ 40,05
Each
Aantal stuks
Adjustable Roller Lever SPDT 1NO/1NC NO/NC IP66 10 A Plastic, Polyester 300V 300V Internal Screw Terminal Contact Block Snap Action GLD PG13.5 Conduit 68.5mm 30.5mm
RS-stocknr. 539-296
Fabrikantnummer83733327
FabrikantCrouzet
€ 46,70
Each
Aantal stuks
Plunger SP NO/NC IP56 5 A - 250V - Cable - - Wire Lead 36mm 49mm
RS-stocknr. 308-1816
FabrikantnummerGLCB01C
FabrikantHoneywell
€ 45,75
Each
Aantal stuks
Roller Plunger SPDT 1NO/1NC NO/NC IP66 10 A Die Cast Zinc 300V 300V Internal Screw Terminal Contact Block Snap Action GLC PG13.5 Conduit 68.5mm 30.5mm
RS-stocknr. 308-1894
FabrikantnummerGLDB01E7B
FabrikantHoneywell
€ 40,80
Each
Aantal stuks
Coil Spring SPDT 1NO/1NC NO/NC IP66 10 A Plastic, Polyester 300V 300V Internal Screw Terminal Contact Block Snap Action GLD PG13.5 Conduit 68.5mm 30.5mm