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. 795-1302
Mfr. Part No.XALK188
HK$395.82
Each
units
Surface Mount Key Reset NC - - - 1.2 A SPST IP66, IP67, IP69, IP69K - 600 V ac Mushroom No Harmony
RS Stock No. 477-4907
Mfr. Part No.84-5031.2B20
BrandEAO
HK$241.72
Each
units
Panel Mount Twist to Reset NO/NC 22.5mm - - 3 (ac) A, 5 (dc) A DPST IP65 - 240 V ac, 250 V dc Mushroom Yes -
RS Stock No. 103-8533
Mfr. Part No.3SU1150-1HB20-1CG0
BrandSiemens
HK$249.22
Each
units
Panel Mount Turn to Unlatch - 22.3mm - - - - IP20, IP66, IP67, IP69, IP69K Latching - Mushroom - SIRIUS ACT
RS Stock No. 609-6170
Mfr. Part No.XB5AS9445
HK$360.28
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. 826-4397
Mfr. Part No.230001
BrandIDEM
HK$222.48
Each
units
Surface Mount Twist to Reset 2NC/NO - - - 3 A - IP67 - 240 V Round No -
RS Stock No. 122-2311
Mfr. Part No.XB4BS8444
HK$335.40
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. 528-0992
Mfr. Part No.3SB3201-1HA20
BrandSiemens
HK$239.47
Each
units
Panel Mount Twist to Reset NO/NC - - - 10 A - IP66 - - Mushroom No Signum
RS Stock No. 841-1461
Mfr. Part No.A165E-S-03U
BrandOmron
HK$475.62
Each
units
Panel Mount Twist to Reset NC 16mm - No 1 A TPST IP65 - 30 V dc, 250 V ac Round No -
RS Stock No. 177-276
Mfr. Part No.XB6AS9349B
HK$328.61
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. 609-6164
Mfr. Part No.XB5AS8445
HK$265.81
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. 609-4714
Mfr. Part No.XALK178G
HK$409.34
Each
units
Surface Mount Twist to Reset NO/2NC - - - - DPST IP66, IP67, IP69, IP69K - - Mushroom No -
RS Stock No. 417-5401
Mfr. Part No.A01ES-DSP3+54B-D+FM2+YL5+PEA01
BrandAPEM
HK$246.67
Each
units
Surface Mount Twist to Reset NC - - - 6 A DPST IP65 - 250 V ac Mushroom No -
RS Stock No. 742-0751
Mfr. Part No.NDRZ50GR/RT
BrandSchmersal
HK$359.60
Each
units
Panel Mount Key Reset - - - No - - IP67, IP69K - - Round No -
RS Stock No. 609-2623
Mfr. Part No.ZB4BS834
HK$211.90
Each
units
Panel Mount Twist to Reset - 22mm - - - - IP66, IP69, IP69K - - Mushroom No Harmony
RS Stock No. 110-4568
Mfr. Part No.M22-PVLT
BrandEaton
HK$260.83
Each
units
Panel Mount Turn to Release NC/NO - - - - - IP66, IP67, IP69K Turn Release - Mushroom No -
RS Stock No. 847-5184
Mfr. Part No.M22-PV
BrandEaton
HK$243.63
Each
units
Panel Mount Pull to Reset - 22.5mm - - - - IP66, IP69K - - Round No -
RS Stock No. 219-5813
Mfr. Part No.A01ES-DM+A0154B-D+A01YL1
BrandAPEM
HK$373.49
Each
units
Panel Mount Twist to Reset 2NC 16mm - - 1.5 A - IP65 - 250 V ac Mushroom No -
RS Stock No. 259-918
Mfr. Part No.LBX10610
BrandBACO
HK$198.00
Each
units
Panel Mount - NC - - - - - IP66 - - - - -
RS Stock No. 731-8989
Mfr. Part No.XAPK178F93H29
HK$610.00
Each
units
Surface Mount Twist to Reset 2NC 22mm - - 6 (ac) A, 550 (dc) mA DPST IP65 - 600 V ac/dc Mushroom No Harmony
RS Stock No. 795-1324
Mfr. Part No.ZB5AS864
HK$267.09
Each
units
Panel Mount Twist to Reset - 22.5mm - - - - IP66, IP67, IP69, IP69K - - Round No Harmony