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. 528-0992
Mfr. Part No.3SB3201-1HA20
BrandSiemens
R 438.00
Each
units
Panel Mount Twist to Reset NO/NC - - - 10 A - IP66 - - Mushroom No Signum
RS stock no. 742-9293
Mfr. Part No.3SB3801-2EF3
BrandSiemens
R 1,580.00
Each
units
Surface Mount Twist to Reset 2NC - - - - - IP67 - - Mushroom No -
RS stock no. 742-9271
Mfr. Part No.3SB3801-2DG3
BrandSiemens
R 1,020.00
Each
units
Surface Mount Twist to Reset NC - - - - - IP67 - - Mushroom No -
RS stock no. 874-2336
Mfr. Part No.3SU1851-0NA00-2AC2
BrandSiemens
R 1,260.00
Each
units
- - - 22mm - - - - - - - - - -
RS stock no. 103-8499
Mfr. Part No.3SU1001-1HB20-0AA0
BrandSiemens
R 270.00
Each
units
Panel Mount Turn to Unlatch - 22.3mm - - - - IP66, IP67, IP69, IP69K Latching - Mushroom Yes SIRIUS ACT
RS stock no. 103-8532
Mfr. Part No.3SU1100-1HB20-1CG0
BrandSiemens
R 346.00
Each
units
Panel Mount Turn to Unlatch - 22.3mm - - - - IP20, IP66, IP67, IP69, IP69K Latching - Mushroom - SIRIUS ACT
RS stock no. 453-3116
Mfr. Part No.3SB3500-1TA20
BrandSiemens
R 410.70
Each
units
Panel Mount Pull to Reset - - - - - - IP67 - - Mushroom No Signum
RS stock no. 453-3100
Mfr. Part No.3SB3500-1HA20
BrandSiemens
R 333.42
Each
units
Panel Mount Twist to Reset - - - - - - IP67 - - Mushroom No Signum
RS stock no. 874-2339
Mfr. Part No.3SU1851-0NB00-2AC2
BrandSiemens
R 1,521.88
Each
units
- - - 22mm - - - - - - - - - -
RS stock no. 742-9376
Mfr. Part No.3SB3801-2DJ3
BrandSiemens
R 1,830.00
Each
units
Surface Mount Twist to Reset 2NC - - - - - IP67 - - Mushroom No -
RS stock no. 874-2036
Mfr. Part No.3SU1100-1HB20-1CH0
BrandSiemens
R 346.00
Each
units
Panel Mount Twist to Reset NC (Auxiliary) 22mm - - - - IP20 Latching 5 → 500 V Mushroom No SIRIUS ACT
RS stock no. 874-2314
Mfr. Part No.3SU1801-0NB00-2AC2
BrandSiemens
R 794.00
Each
units
- - - 22mm - - - - - - - - - -
RS stock no. 874-2305
Mfr. Part No.3SU1801-0NA00-2AC2
BrandSiemens
R 805.44
Each
units
Surface Mount - - 22mm - - - - - - - - - -
RS stock no. 103-8533
Mfr. Part No.3SU1150-1HB20-1CG0
BrandSiemens
R 374.00
Each
units
Panel Mount Turn to Unlatch - 22.3mm - - - - IP20, IP66, IP67, IP69, IP69K Latching - Mushroom - SIRIUS ACT
RS stock no. 103-8530
Mfr. Part No.3SU1051-1HB20-0AA0
BrandSiemens
R 314.00
Each
units
Panel Mount Turn to Unlatch - 22.3mm - - - - IP66, IP67, IP69, IP69K Latching - Mushroom Yes SIRIUS ACT
RS stock no. 743-0004
Mfr. Part No.3SB3500-1AA20
BrandSiemens
R 403.00
Each
units
Panel Mount Twist to Reset - - - - - - IP67 - - Mushroom No Signum
RS stock no. 742-9849
Mfr. Part No.3SB3500-1FA20
BrandSiemens
R 367.00
Each
units
Panel Mount Twist to Reset - - - - - - IP67 - - Mushroom No Signum
RS stock no. 742-9338
Mfr. Part No.3SB3801-0EF3
BrandSiemens
R 937.00
Each
units
Surface Mount Twist to Reset 2NC - - - - - IP65 - - Mushroom No -
RS stock no. 173-6855
Mfr. Part No.3SU1851-0NB00-2AA2
BrandSiemens
R 1,057.94
Each
units
Panel Mount Rotate-To-Unlatch 2NC 22mm - 2 10 A - IP66, IP67, IP69, IP69K Latching 500 V ac/dc Round - -
New
RS stock no. 193-3682
Mfr. Part No.3SU1150-1HA20-3PH0
BrandSiemens
R 611.20
Each
units
Front plate mounting Pull-To-Unlatch - - - - 10 A - IP66, IP67, IP69(IP69K) Latching 5 ... 500 V ac/dc - - -