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. 795-1306
Mfr. Part No.XB4BS8442
R 495.64
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. 330-9388
Mfr. Part No.ZB4BS844
R 384.33
Each
units
Panel Mount Twist to Reset - 22mm - - 6 (ac) A, 550 (dc) mA - IP66, IP69, IP69K - 600 V ac/dc Mushroom No Harmony
RS stock no. 546-648
Mfr. Part No.XAPJ1201SPEC0971
R 1,281.63
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
RS stock no. 546-644
Mfr. Part No.XAPJ1201SPEC0971
R 1,558.06
Each
units
Panel Mount Key Reset NO/2NC - - - 3 (ac) A, 270 (dc) mA TPST IP65 - 240 V ac, 250 V dc Mushroom No Harmony
RS stock no. 795-1295
Mfr. Part No.XALK178
R 598.05
Each
units
Surface Mount Twist to Reset NC - - - 1.2 A SPST IP66, IP67, IP69, IP69K - 600 V ac Mushroom No Harmony
RS stock no. 425-8449
Mfr. Part No.XB4BS8445
R 606.28
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. 330-8587
Mfr. Part No.XALK178F
R 678.40
Each
units
Surface Mount Twist to Reset 2NC 22mm - - 6 (ac) A, 550 (dc) mA DPST IP66, IP67, IP69, IP69K - 600 V ac/dc Mushroom No Harmony
RS stock no. 815-2308
Mfr. Part No.XB7NS9444
R 490.088
Each (In a Pack of 10)
units
Panel Mount Key Reset 2NC 22.5mm - - 1.5 A - IP20, IP65 - 250 V Round No Harmony
RS stock no. 609-5600
Mfr. Part No.XB4BT845
R 621.56
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. 122-2311
Mfr. Part No.XB4BS8444
R 615.94
Each
units
Panel Mount Turn to Release 2NC 22mm - - 6 A @ 120 V ac, 10 (Fuse) A DPST IP66, IP67, IP69, IP69K - 600 V Mushroom - Harmony
RS stock no. 609-6164
Mfr. Part No.XB5AS8445
R 504.18
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. 426-2808
Mfr. Part No.ZB5AS844
R 349.06
Each
units
- - - 22mm - - - - IP66, IP67, IP69, IP69K Trigger Action - - - -
RS stock no. 609-4708
Mfr. Part No.XALK178E
R 548.50
Each
units
Surface Mount Twist to Reset NO/NC - - - - DPST IP66, IP67, IP69, IP69K - - Mushroom No -
RS stock no. 795-1312
Mfr. Part No.XB5AS8442
R 430.08
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. 609-6417
Mfr. Part No.XB6AS8349B
R 480.25
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. 795-1283
Mfr. Part No.XB4BS9445EX
R 1,640.69
Each
units
Panel Mount Key Reset NC/NO 22.5mm - - 1.2 A DPST IP66, IP67, IP69, IP69K - 600 V ac Mushroom No Harmony
RS stock no. 621-9171
Mfr. Part No.9001TYK11
R 2,146.82
Each
units
Surface Mount Twist to Reset NC 30mm - - - - IP66 - - Mushroom No Harmony
RS stock no. 177-276
Mfr. Part No.XB6AS9349B
R 709.40
Each
units
Panel Mount Key Reset NO/2NC 16mm - - 3 (ac) A, 220 (dc) mA TPST IP65 - 240 V ac, 250 V dc Mushroom No Harmony
RS stock no. 609-2673
Mfr. Part No.ZB4BT84
R 371.97
Each
units
Panel Mount Pull to Reset - - - - - - IP66, IP67, IP69, IP69K - - Mushroom No Harmony
RS stock no. 123-8167
Mfr. Part No.XB5AS8444
R 526.99
Each
units
Panel Mount Turn to Release 2NC 22.5mm - - 6 A @ 120 V ac, 550 mA @ 125 V dc 2P IP66, IP67, IP69, IP69K Latching 600 V ac/dc Mushroom - Harmony