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. 334-993
Fabrikantnummer24CE31-Y1
FabrikantHoneywell
80,47 €
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Plunger SPST NC IP67 100 mA Die Cast Zinc 240V 250V - Slow Action - Wire Lead 49mm 40mm
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FabrikantHoneywell
77,19 €
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Roller Plunger SPDT NO/NC IP66 5 A Die Cast Zinc 240V - - Snap Action 14CE Wire Lead 49mm 40mm
RS-stocknr. 691-7257
FabrikantnummerLSA1A
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Rotary Lever SPDT NO/NC IP67 10 A Die Cast Zinc 600V 250V - Snap Action HDLS Conduit 106.78mm 1.62in
RS-stocknr. 308-1844
FabrikantnummerGLCB01A4J
FabrikantHoneywell
43,56 €
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Adjustable 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. 808-7636
FabrikantnummerGLLA01A1B
FabrikantHoneywell
18,42 €
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Rotary Lever SPDT NO/NC IP66 10 A Plastic 300V 250V 1/2 in Conduit Snap Action GLL - 30.5mm 62mm
RS-stocknr. 808-7648
FabrikantnummerGLLA01A2B
FabrikantHoneywell
15,60 €
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Rotary Lever SPDT NO/NC IP66 10 A Plastic 300V 250V 1/2 in Conduit Snap Action GLL - 30.5mm 62mm
RS-stocknr. 894-3324
FabrikantnummerNGCMB10AX01L
FabrikantHoneywell
29,72 €
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Roller Plunger SPDT NO/NC IP67 6 A Metal 240V - M12 Positive Break, Snap Action NGC Cable 30mm 16.7mm
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Fabrikantnummer914CE1-3A
FabrikantHoneywell
61,97 €
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Plunger SPDT NO/NC IP66, IP67, IP68 5 A Die Cast Zinc 250V 28V Cable Snap Action 914CE Wire Lead 40mm 16mm
RS-stocknr. 691-7216
FabrikantnummerBZ-2RW84-A2
FabrikantHoneywell
15,09 €
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Lever SPDT - - 15 A Plastic 125V - - Snap Action BZ Screw 28.19mm 1.94in
RS-stocknr. 308-1816
FabrikantnummerGLCB01C
FabrikantHoneywell
45,75 €
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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. 344-3618
FabrikantnummerSSCEB31A1B
FabrikantHoneywell
110,66 €
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Rotary Lever SPDT NO/NC IP68 4 A Die Cast Zinc 240V - - Snap Action SSCE Wire Lead 65.1mm 16mm
RS-stocknr. 808-2669
Fabrikantnummer914CE2-3
FabrikantHoneywell
72,58 €
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Aantal stuks
Roller Plunger SPDT NO/NC IP66, IP67, IP68 5 A Die Cast Zinc 250V 28V Cable Snap Action 914CE Wire Lead 40mm 16mm
RS-stocknr. 335-081
Fabrikantnummer14CE3-1
FabrikantHoneywell
77,19 €
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Plunger SPDT NO/NC IP66 5 A Die Cast Zinc 240V - - Snap Action 14CE Wire Lead 49mm 40mm
RS-stocknr. 808-2678
Fabrikantnummer914CE2-3A
FabrikantHoneywell
79,99 €
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Roller Plunger SPDT NO/NC IP66, IP67, IP68 5 A Die Cast Zinc 250V 28V Cable Snap Action 914CE Wire Lead 40mm 16mm
RS-stocknr. 808-7654
FabrikantnummerGLLA01C
FabrikantHoneywell
17,78 €
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Roller Plunger SPDT NO/NC IP66 10 A Plastic 300V 250V 1/2 in Conduit Snap Action GLL - 30.5mm 62mm
RS-stocknr. 821-0381
FabrikantnummerBZE7-2RQ8-PG
FabrikantHoneywell
158,87 €
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Roller Plunger SPDT NO/NC IP50 15 A Die Cast Aluminium 125 V, 250 V, 480 V 125 V, 250 V PG 13.5 Snap Action - PG13.5 - -
RS-stocknr. 808-2568
Fabrikantnummer914CE1-3
FabrikantHoneywell
57,06 €
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Plunger SPDT NO/NC IP66, IP67, IP68 5 A Die Cast Zinc 250V 28V Cable Snap Action 914CE Wire Lead 40mm 16mm
RS-stocknr. 808-7689
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134,61 €
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Roller Plunger SPDT NO/NC IP67 100 mA Die Cast Zinc 125V 30V Cable Snap Action SL1 Screw 18mm 59.8mm
RS-stocknr. 344-3589
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79,25 €
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Plunger SPDT NO/NC IP68 4 A - 240V - - Snap Action SSCE Wire Lead 54mm 40mm
RS-stocknr. 186-8425
FabrikantnummerGLEB01C
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Roller Plunger SPDT NO/NC IP66 10 A Die Cast Zinc 300V 250V Snap-On Snap Action GLE PG13.5 Connector 50mm 65mm