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. 103-8532
Mfr. Part No.3SU1100-1HB20-1CG0
BrandSiemens
$66.55
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
$63.46
Each
units
Panel Mount Turn to Unlatch - 22.3mm - - - - IP66, IP67, IP69, IP69K Latching - Mushroom Yes SIRIUS ACT
RS Stock No. 874-2305
Mfr. Part No.3SU1801-0NA00-2AC2
BrandSiemens
$116.43
Each
units
Surface Mount - - - - - - - - - - - - -
RS Stock No. 874-1926
Mfr. Part No.3SU1050-1HB20-0AA0
BrandSiemens
$37.56
Each
units
Panel Mount Twist to Reset - 22mm - - - - - Latching - Mushroom No SIRIUS ACT
RS Stock No. 874-2301
Mfr. Part No.3SU1801-0NA00-2AA2
BrandSiemens
$80.49
Each
units
Surface Mounting - - - - - - - IP66, IP67, IP69K - - Mushroom, Round - -
RS Stock No. 103-8533
Mfr. Part No.3SU1150-1HB20-1CG0
BrandSiemens
$67.58
Each
units
Panel Mount Turn to Unlatch - 22.3mm - - - - IP20, IP66, IP67, IP69, IP69K Latching - Mushroom - SIRIUS ACT
RS Stock No. 193-5280
Mfr. Part No.3SU1051-1GB20-0AA0
BrandSiemens
$62.53
Each
units
- - - 22.3mm - - - - IP66, IP67, IP69(IP69K) Latching - Mushroom - SIRIUS ACT
RS Stock No. 193-2722
Mfr. Part No.3SU1801-0NN00-2AA2
BrandSiemens
$170.11
Each
units
- Key-Operated-Release - - - 2 10 A - IP66, IP67, IP69(IP69K) - 5 ... 500 V Round - -
RS Stock No. 874-1699
Mfr. Part No.3SU1000-1HF20-0AA0
BrandSiemens
$85.12
Each
units
Panel Mount Key Reset - 22mm - - - - - Latching - Mushroom with Key Switch No SIRIUS ACT
RS Stock No. 193-2723
Mfr. Part No.3SU1801-0NP00-2AA2
BrandSiemens
$113.68
Each
units
- Rotate-To-Unlatch - - - 2 10 A - IP66, IP67, IP69(IP69K) Latching 5 ... 500 V Round - -
RS Stock No. 193-3321
Mfr. Part No.3SU1050-1HN20-0AA0
BrandSiemens
$223.30
Each
units
- - - 22.3mm - - - - IP66, IP67, IP69(IP69K) Latching - Mushroom - SIRIUS ACT
RS Stock No. 193-5312
Mfr. Part No.3SU1050-1HS20-0AA0
BrandSiemens
$166.87
Each
units
- - - 22.3mm - - - - IP66, IP67, IP69(IP69K) Latching - Mushroom - SIRIUS ACT
RS Stock No. 193-3581
Mfr. Part No.3SU1100-1HB20-1PA0
BrandSiemens
$76.73
Each
units
Front plate mounting Twist to Reset - - - - 10 A - IP66, IP67, IP69(IP69K) Latching 5 ... 500 V ac/dc - - -
RS Stock No. 638-7454
Mfr. Part No.3SB3801-0DG3
BrandSiemens
$94.84
Each
units
Surface Mount Twist to Reset NC - - - - - IP65 - - Mushroom No -
RS Stock No. 193-2476
Mfr. Part No.3SU1150-1HA20-3CH0
BrandSiemens
$67.19
Each
units
Front plate mounting Pull-To-Unlatch - - - - 10 A - IP66, IP67, IP69(IP69K) Latching 5 ... 500 V ac/dc - - -
RS Stock No. 181-2873
Mfr. Part No.3SU1150-1HB20-1FG0
BrandSiemens
$73.69
Each
units
Chassis Mount Rotate-to-Unlatch NO/NC 22.3mm - 3 10 A DPST IP20, IP66, IP67, IP69 Latching 500 V ac/dc Mushroom - SIRIUS ACT
RS Stock No. 180-9498
Mfr. Part No.3SU1100-1HB20-1FG0
BrandSiemens
$73.56
Each
units
Panel Mount Rotate-To-Unlatch NO/NC 22.3mm - NO/NC/CO 10 A - IP20, IP66, IP67, IP69, IP69K Latching 5 → 500 V ac/dc Mushroom - SIRIUS ACT
RS Stock No. 193-3798
Mfr. Part No.3SU1150-1HB20-3PH0
BrandSiemens
$78.97
Each
units
Front plate mounting Twist to Reset - - - - 10 A - IP66, IP67, IP69(IP69K) Latching 5 ... 500 V ac/dc - - -
RS Stock No. 193-3132
Mfr. Part No.3SU1000-1HM20-0AA0
BrandSiemens
$203.00
Each
units
- - - 22.3mm - - - - IP66, IP67, IP69(IP69K) Latching - Mushroom - SIRIUS ACT
RS Stock No. 193-3277
Mfr. Part No.3SU1050-1HH20-0AA0
BrandSiemens
$98.46
Each
units
- - - 22.3mm - - - - IP66, IP67, IP69(IP69K) Latching - Mushroom - SIRIUS ACT