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. 874-2301
Mfr. Part No.3SU1801-0NA00-2AA2
BrandSiemens
SGD60.89
Each
units
Surface Mounting - - - - - - - IP66, IP67, IP69K - - Mushroom, Round - -
RS Stock No. 426-2791
Mfr. Part No.XB4BS9445
SGD71.65
Each
units
Panel Mount Key Reset NO/NC 22mm - - 550 (dc) mA, 6 (ac) A DPST IP66, IP67, IP69, IP69K - 600 V ac/dc Mushroom No Harmony
RS Stock No. 746-7150
Mfr. Part No.A22EL-M
BrandOmron
SGD79.70
Each
units
Panel Mount Twist to Reset - - - No - - IP65 - - Mushroom Yes -
RS Stock No. 103-8530
Mfr. Part No.3SU1051-1HB20-0AA0
BrandSiemens
SGD56.26
Each
units
Panel Mount Turn to Unlatch - 22.3mm - - - - IP66, IP67, IP69, IP69K Latching - Mushroom Yes SIRIUS ACT
RS Stock No. 259-895
Mfr. Part No.LBX11302
BrandBACO
SGD105.98
Each
units
Surface Mount Key Reset 2NC - - - - - IP66 - - Mushroom No -
RS Stock No. 795-1286
Mfr. Part No.ZB4BS864
SGD40.03
Each
units
Panel Mount Twist to Reset - 22.5mm - - - - IP66, IP69, IP69K - - Round No Harmony
RS Stock No. 330-8600
Mfr. Part No.XALK188G
SGD94.07
Each
units
Surface Mount Key Reset NO/2NC - - - 550 (dc) mA, 6 (ac) A TPST IP66, IP67, IP69, IP69K - 600 V ac/dc Mushroom No Harmony
RS Stock No. 477-4890
Mfr. Part No.84-5030.0020
BrandEAO
SGD34.36
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 No -
RS Stock No. 795-1277
Mfr. Part No.XB5AS9442
SGD45.69
Each
units
Panel Mount Key Reset NC 22.5mm - - 1.2 A SPST IP66, IP67, IP69, IP69K - 600 V ac Mushroom No Harmony
RS Stock No. 874-2305
Mfr. Part No.3SU1801-0NA00-2AC2
BrandSiemens
SGD95.34
Each
units
Surface Mount - - - - - - - - - - - - -
RS Stock No. 330-8593
Mfr. Part No.XALK188F
SGD79.16
Each
units
Surface Mount Key Reset 2NC - - - 550 (dc) mA, 6 (ac) A DPST IP66, IP67, IP69, IP69K - 600 V ac/dc Mushroom No Harmony
RS Stock No. 832-6158
Mfr. Part No.HW1B-V4F11-R
BrandIdec
SGD61.31
Each
units
Panel Mount Twist to Reset NC/NO 22mm - - 10 (ac) A, 8 (dc) A - IP65 - 440 V Round No -
RS Stock No. 110-4542
Mfr. Part No.216878 & M22-PVL
BrandEaton
SGD46.83
Each
units
Panel Mount Pull to Release 2NC 22.5mm - - - - IP66, IP67, IP69K Push Lock - Mushroom Yes RMQ Titan
RS Stock No. 621-9171
Mfr. Part No.9001TYK11
SGD195.27
Each
units
Surface Mount Twist to Reset NC - - - - - IP66 - - Mushroom No Harmony
RS Stock No. 831-7895
Mfr. Part No.AVW410-R
BrandIdec
SGD61.71
Each
units
Panel Mount Twist to Reset NO 22.3mm - - - - IP65 - - Mushroom No -
RS Stock No. 810-3794
Mfr. Part No.216515 & M22-PV/K01
BrandEaton
SGD56.50
Each
units
Panel Mount Pull to Reset NC 22.5mm - - 15 mA - IP66, IP67, IP69K - 12 → 30 V ac Round No RMQ Titan
RS Stock No. 609-6170
Mfr. Part No.XB5AS9445
SGD73.93
Each
units
Panel Mount Key Reset NO/NC 22mm - - 550 (dc) mA, 6 (ac) A DPST IP66, IP67, IP69, IP69K - 600 V ac/dc Mushroom No Harmony
RS Stock No. 874-2314
Mfr. Part No.3SU1801-0NB00-2AC2
BrandSiemens
SGD98.31
Each
units
- - - - - - - - - - - - - -
RS Stock No. 521-3627
Mfr. Part No.1TVC101000P3206
BrandABB
SGD95.86
Each
units
Surface Mount Key Reset NC - - no - DPST IP66 - - Round No -
RS Stock No. 841-1809
Mfr. Part No.A22EL02
BrandOmron
SGD70.35
Each
units
Panel Mount Twist to Reset 2NC - - No - DPST IP65 - - Mushroom Yes -