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 MakeupLimit 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 TypesLimit 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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Description Price 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 Stock No. 311-2465
Mfr. Part No.GLAB20B
BrandHoneywell
$176.67
Each
units
Plunger DPDT 2NO/2NC IP67 6 A Die Cast Zinc 600V 250V - Snap Action GLA PG13.5 Connector 145.8mm 42mm
RS Stock No. 293-7033
Mfr. Part No.3LS1-4C
BrandHoneywell
$423.54
Each
units
Plunger SPDT NO/NC IP67 10 A Die Cast Zinc 480V 550V - Snap Action - Conduit - -
RS Stock No. 691-7162
Mfr. Part No.91MCE3-P1
BrandHoneywell
$73.76
Each
units
Plunger - NO/NC IP67 10 A Die Cast Zinc 300V 250V - Snap Action 91MCE Wire Lead 50mm 30mm
RS Stock No. 821-1390
Mfr. Part No.SZL-WLC-B-N
BrandHoneywell
$257.02
Each
units
Rotary Lever SPDT - IP67 6 A Die Cast Aluminium - 24V - Double Break SZL-WL PF1/2 94.1mm 40mm
RS Stock No. 691-7207
Mfr. Part No.BZ-2RW8225551-A2
BrandHoneywell
$38.10
Each
units
Roller Lever SPDT - - 15 A Plastic 250V - - Snap Action BZ Screw 41.14mm 1.94in
RS Stock No. 308-1894
Mfr. Part No.GLDB01E7B
BrandHoneywell
$84.07
Each
units
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
RS Stock No. 894-3346
Mfr. Part No.NGCPB10AX01A1A
BrandHoneywell
$42.83
Each
units
Rotary Lever SPDT NO/NC IP67 6 A Plastic 240V - M12 Positive Break, Snap Action NGC Cable 30mm 32.5mm
RS Stock No. 311-2364
Mfr. Part No.GLAB01C
BrandHoneywell
$151.96
Each
units
Plunger SPDT NO/NC IP67 6 A Die Cast Zinc 600V 250V - Snap Action GLA PG13.5 Connector 145.8mm 42mm
RS Stock No. 308-1838
Mfr. Part No.GLCB01E7B
BrandHoneywell
$93.08
Each
units
Coil Spring 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 Stock No. 223-3224
Mfr. Part No.GLAC20D
BrandHoneywell
$195.69
Each
units
Roller Lever DPDT 2NO/2NC IP67 6 A Die Cast Zinc 600V 250V - Snap Action GLA 20 mm Conduit 145.8mm 42mm
RS Stock No. 186-8201
Mfr. Part No.GLAC01A1B
BrandHoneywell
$207.37
Each
units
Rotary Lever SPDT NO/NC IP67 6 A Die Cast Zinc 600V 250V - Snap Action GLA 20 mm Conduit 145.8mm 42mm
RS Stock No. 311-2279
Mfr. Part No.GLDB06A1B
BrandHoneywell
$66.71
Each
units
Rotary Lever DPST 2NC 2NC IP66 10 A Plastic, Polyester 300V 300V Internal Screw Terminal Contact Block Slow Action GLD PG13.5 Conduit 68.5mm 30.5mm
RS Stock No. 808-7538
Mfr. Part No.BZV6-2RN
BrandHoneywell
$124.78
Each
units
Plunger SPDT NO/NC IP66 15 A Die Cast Zinc 600V 250V 1/2 in NPT Conduit Snap Action BZV6 - 69.34mm 44.45mm
RS Stock No. 344-3589
Mfr. Part No.SSCEB31B
BrandHoneywell
$158.79
Each
units
Plunger SPDT NO/NC IP68 4 A - 240V - - Snap Action SSCE Wire Lead 54mm 40mm
RS Stock No. 691-7197
Mfr. Part No.BZ-2RW822
BrandHoneywell
$43.83
Each
units
Roller Lever SPDT - - 15 A Plastic 250V - - Snap Action BZ PCB Pin 24.13mm 1.94in
RS Stock No. 691-7159
Mfr. Part No.91MCE2-P1
BrandHoneywell
$90.19
Each
units
Plunger - NO/NC IP67 10 A Die Cast Zinc 300V 250V - Snap Action 91MCE Wire Lead 50mm 30mm
RS Stock No. 311-2443
Mfr. Part No.GLAB20C
BrandHoneywell
$188.08
Each
units
Plunger DPDT 2NO/2NC IP67 6 A Die Cast Zinc 600V 250V - Snap Action GLA PG13.5 Connector 145.8mm 42mm
RS Stock No. 808-3163
Mfr. Part No.GLDA01A1B
BrandHoneywell
$66.17
Each
units
Roller Lever SPDT 1NO/1NC NO/NC IP66 10 A Plastic, Polyester 300V 300V Internal Screw Terminal Contact Block Snap Action GLD 1/2-14NPT Conduit 68.5mm 30.5mm
RS Stock No. 808-2757
Mfr. Part No.BZE6-2RN
BrandHoneywell
$108.79
Each
units
Plunger SPDT NO/NC IP66 15 A Die Cast Zinc 600V 250V 1/2 NPT Snap Action BZE6 Screw 25.4mm 44.4mm
RS Stock No. 311-2459
Mfr. Part No.GLAB20A1B
BrandHoneywell
$184.44
Each
units
Rotary Lever DPDT 2NO/2NC IP67 6 A Die Cast Zinc 600V 250V - Snap Action GLA PG13.5 Connector 145.8mm 42mm