Emergency Stop Push Buttons

An emergency stop push button is a fail-safe control switch that provides both safety for the machinery and for the person using the machinery. The purpose of the emergency push button is to stop the machinery quickly when there is a risk of injury or the workflow requires stopping.

All machinery requires an emergency top button unless it would not reduce the risk or the machine is hand operated. The buttons are red as standard, often with a yellow background.

Types of Emergency Stops

The three most common emergency stops are:
•Push-pull: The button is pushed in to stop and released by pulling the button back.


•Twist release: The button is pushed in to stop and released by twisting the button.


•Key release: The button is pushed in to stop and only released with a key.



Where are they used?

Emergency stop push buttons can be found in any industry including industrial, commercial and public facilities. They are required to be clearly visible to anyone that is required to use them. It is also possible to have several emergency stop buttons on one machine depending on what part of the machine has to be stopped.

Some industries that require emergency stop push buttons are:
•Material handling


•Mining


•Food and beverage


•HVAC


•Amusements


•Marine


•Aviation



Foot and palm buttons have a large actuator surface and are also tamper-proof. They can be actuated by using the foot or hand and their simple design makes for a quick response. These types of emergency stop switches are ideal for harsh environment applications.

Position switches provide a link to the emergency stop actuating element. This type of emergency stop button is highly reliable plus quick and easy to fit. They can also be used in a wide range of applications.

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Description Price Mounting Type Reset Method Normal State Configuration Cutout Diameter Safety Contacts Auxiliary Contacts Supply Current Pole and Throw Configuration IP Rating Push Button Actuation Supply Voltage Head Style Illuminated Range
RS Stock No. 426-2791
Mfr. Part No.XB4BS9445
TWD1,556.00
Each
units
Panel Mount Key Reset NO/NC 22mm - - 6 (ac) A, 550 (dc) mA DPST IP66, IP67, IP69, IP69K - 600 V ac/dc Mushroom No Harmony
RS Stock No. 795-1306
Mfr. Part No.XB4BS8442
TWD990.00
Each
units
Panel Mount Twist to Reset NC 22.5mm - - 1.2 A SPST IP66, IP67, IP69, IP69K - 600 V ac Mushroom No Harmony
RS Stock No. 609-6164
Mfr. Part No.XB5AS8445
TWD1,067.00
Each
units
Panel Mount Twist to Reset NO/NC 22mm - - 6 (ac) A, 550 (dc) mA DPST IP66, IP67, IP69, IP69K - 600 V ac/dc Mushroom No Harmony
RS Stock No. 609-2623
Mfr. Part No.ZB4BS834
TWD751.00
Each
units
Panel Mount Twist to Reset - 22mm - - - - IP66, IP69, IP69K - - Mushroom No Harmony
RS Stock No. 795-1312
Mfr. Part No.XB5AS8442
TWD909.00
Each
units
Panel Mount Twist to Reset NC 22.5mm - - 1.2 A SPST IP66, IP67, IP69, IP69K - 600 V ac Mushroom No Harmony
RS Stock No. 609-4708
Mfr. Part No.XALK178E
TWD1,320.00
Each
units
Surface Mount Twist to Reset NO/NC - - - - DPST IP66, IP67, IP69, IP69K - - Mushroom No -
RS Stock No. 621-9171
Mfr. Part No.9001TYK11
TWD4,508.00
Each
units
Surface Mount Twist to Reset NC - - - - - IP66 - - Mushroom No Harmony
RS Stock No. 609-6186
Mfr. Part No.XB5AT845
TWD1,106.00
Each
units
Panel Mount Pull to Reset NO/NC 22mm - - 6 (ac) A, 550 (dc) mA DPST IP66, IP67, IP69, IP69K - 600 V ac/dc Mushroom No Harmony
RS Stock No. 426-2808
Mfr. Part No.ZB5AS844
TWD637.00
Each
units
- - - 22mm - - - - IP66, IP67, IP69, IP69K Trigger Action - - - -
RS Stock No. 425-8449
Mfr. Part No.XB4BS8445
TWD1,085.00
Each
units
Panel Mount Twist to Reset NO/NC 22mm - - 0.55 (dc) A, 6 (ac) A DPST IP66, IP67, IP69, IP69K Latching 600 V ac/dc Mushroom No Harmony
RS Stock No. 609-6417
Mfr. Part No.XB6AS8349B
TWD956.00
Each
units
Panel Mount Twist to Reset NO/2NC 16mm - - 3 (ac) A, 220 (dc) mA TPST IP65 - 240 V ac, 250 V dc Mushroom No Harmony
RS Stock No. 330-9388
Mfr. Part No.ZB4BS844
TWD715.00
Each
units
Panel Mount Twist to Reset - 22mm - - 6 (ac) A, 550 (dc) mA - IP66, IP69, IP69K - 600 V ac/dc Mushroom No Harmony
New
RS Stock No. 195-8738
Mfr. Part No.XALK84W2MG
TWD2,507.00
Each
units
- Turn to Release 1NO/2NC 22mm - - 6 A - - - 230 V Mushroom Yes Harmony
New
RS Stock No. 195-8725
Mfr. Part No.ZB5AS84W2B
TWD1,138.00
Each
units
- Turn to Release - 22mm - - - - IP66, IP67, IP69, IP69K - 24 V ac/dc Round Yes Harmony
RS Stock No. 795-1315
Mfr. Part No.XB4BS9442
TWD1,350.00
Each
units
Panel Mount Key Reset NC 22.5mm - - 1.2 A SPST IP66, IP67, IP69, IP69K - 600 V ac Mushroom No Harmony
RS Stock No. 125-1094
Mfr. Part No.XPSAK361144P
TWD10,303.00
Each
units
DIN Rail - - - 3 1 (NC), 4 (Solid State Output) - - IP20, IP40 - 24 V dc, 110 V ac - Yes Preventa
RS Stock No. 795-1318
Mfr. Part No.XB4BT842
TWD906.00
Each
units
Panel Mount Pull to Reset NC 22.5mm - - 1.2 A SPST IP66, IP67, IP69, IP69K - 600 V ac Mushroom No Harmony
RS Stock No. 546-648
Mfr. Part No.XAPJ1201SPEC0971
TWD2,307.00
Each
units
Panel Mount Twist to Reset NO/2NC - - - 3 (ac) A, 270 (dc) mA TPST IP65 - 240 V ac, 250 V dc Mushroom No Harmony
New
RS Stock No. 195-8726
Mfr. Part No.ZB5AS84W2G
TWD1,260.00
Each
units
- Turn to Release - 22mm - - - - IP66, IP67, IP69, IP69K - 120 V ac Round Yes Harmony
RS Stock No. 817-4862
Mfr. Part No.ZB5AS94414
TWD2,543.00
Each
units
Panel Mount Key Reset NO/NC 22mm - - 14 mA - IP66, IP67, IP69, IP69K - 240 V Mushroom No Harmony