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. 170-2237
Mfr. Part No.61-6461.4067
BrandEAO
HK$614.73
1 Bag of 1
Bag(s)
Panel Mount Twist to Reset 3 NC 16mm - - 0.2 (ac) A, 0.2 (dc) A - IP67, IP69K Turn Release 50V AC, 50V DC Mushroom No 61 Compact
RS Stock No. 742-9293
Mfr. Part No.3SB3801-2EF3
BrandSiemens
HK$924.90
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Surface Mount Twist to Reset 2NC - - - - - IP67 - - Mushroom No -
RS Stock No. 832-6155
Mfr. Part No.HW1B-V5F01-R
BrandIdec
HK$303.82
Each
units
Panel Mount Twist to Reset NC 22mm - - 8 (dc) A, 10 (ac) A - IP65 - 440 V Round No -
New
RS Stock No. 193-5285
Mfr. Part No.3SU1000-1HG20-0AA0
BrandSiemens
HK$429.88
Each
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- - - 22.3mm - - - - IP66, IP67, IP69(IP69K) Latching - Mushroom - SIRIUS ACT
RS Stock No. 492-7274
Mfr. Part No.1SFA619502R1071 - CE3K-10R-11
BrandABB
HK$271.14
Each
units
Panel Mount Key Reset NO/NC 22.5mm - No 1.5 (ac) A, 300 (dc) mA DPST IP66, IP67, IP69K - 300 V ac/dc Mushroom No Compact
RS Stock No. 822-0280
Mfr. Part No.CE4T-10R-02
BrandABB
HK$232.99
Each
units
Panel Mount Twist to Reset 2NC 22.5mm - No 1 A @ 240 V ac, 300 mA @ 25 V dc - IP66, IP67, IP69K - 125 V dc, 240 V ac Round No Compact
RS Stock No. 168-2546
Mfr. Part No.YW1B-V4E02R
BrandIdec
HK$117.44
Each
units
Panel Mount Pull to Turn 2NC 22mm 2 - 10 A - IP65 Push Lock 380 V Mushroom No -
New
RS Stock No. 193-5298
Mfr. Part No.3SU1000-1HS20-0AA0
BrandSiemens
HK$680.56
Each
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- - - 22.3mm - - - - IP66, IP67, IP69(IP69K) Latching - Mushroom - SIRIUS ACT
RS Stock No. 826-4407
Mfr. Part No.231006
BrandIDEM
HK$1,024.72
Each
units
Surface Mount Twist to Reset 2NC/NO - - - 3 A - IP69K - 240 V Round No -
RS Stock No. 826-4417
Mfr. Part No.232010
BrandIDEM
HK$1,099.12
Each
units
Surface Mount Twist to Reset 2NC/2NO - - - 3 A - IP67, IP69K - 240 V ac/dc Round No -
New
RS Stock No. 188-9169
Mfr. Part No.A22NE-M-PD22-C
BrandOmron
HK$578.27
Each
units
Panel Mount Turn Reset 2NO/2NC 22mm 4 No 5 A - IP65 - 250 V Round Yes A22NE
New
RS Stock No. 192-0852
Mfr. Part No.1SFA619550R1051
BrandABB
HK$221.07
Each
units
- Twist to Release 2NC - - 2NC 1.5 A - IP20, IP69K Twist Release 240 V Mushroom - Compact
New
RS Stock No. 193-3326
Mfr. Part No.3SU1050-1HU20-0AA0
BrandSiemens
HK$1,077.02
Each
units
- - - 22.3mm - - - - IP66, IP67, IP69(IP69K) Latching - Mushroom - SIRIUS ACT
RS Stock No. 742-9271
Mfr. Part No.3SB3801-2DG3
BrandSiemens
HK$540.00
Each
units
Surface Mount Twist to Reset NC - - - - - IP67 - - Mushroom No -
RS Stock No. 173-6858
Mfr. Part No.3SU1851-2NG00-2AA2
BrandSiemens
HK$1,476.25
Each
units
Panel Mount Pull-To-Unlatch NC/NO - - 2 10 A - IP66, IP67, IP69, IP69K Latching 500 V ac/dc Round - -
RS Stock No. 176-0186
Mfr. Part No.84-5140.0020
BrandEAO
HK$314.79
Each
units
Panel Mount Turn to Release 2NC 22.3mm - - 5 A 2P IP65 Turn Release 250 V ac/dc Round No -
New
RS Stock No. 193-2721
Mfr. Part No.3SU1801-0NB00-2AA2
BrandSiemens
HK$505.08
Each
units
- Rotate-To-Unlatch - - - 2 10 A - IP66, IP67, IP69(IP69K) Latching 5 ... 500 V Round - -
RS Stock No. 816-9295
Mfr. Part No.9001SKR16H13
HK$985.92
Each
units
Panel Mount Twist to Reset NO/NC 30mm - - 3 A - IP66 - 240 V ac Mushroom No Harmony
RS Stock No. 173-6762
Mfr. Part No.3SU1100-1HB20-3FH0
BrandSiemens
HK$295.39
Each
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Panel Mount Rotate-To-Unlatch NO/NC 22mm - 3 10 A - IP20, IP66, IP67, IP69, IP69K Latching 500 V Round - -
RS Stock No. 173-6760
Mfr. Part No.3SU1100-1HA20-1CH0
BrandSiemens
HK$261.83
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Panel Mount Pull-To-Unlatch NC 22mm - 1 10 A - IP20, IP66, IP67, IP69, IP69K Latching 500 V Round - -
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