DAYTON

Kraus & Naimer

Omron Industrial Automation

RS Pro

SCHNEIDER ELECTRIC

Electricals

electricals

Control Stations, Pendant Stations, and Enclosures

control-stations-pendant-stations-and-enclosures

Emergency Stop Push Buttons

emergency-stop-push-buttons

Cleaning

cleaning

Mobile Garbage Bins

mobile-garbage-bins

Pendant Switches

pendant-switches

Push Button Heads

push-button-heads

Push Button Labels & Legends

push-button-labels-legends

Safety

safety

Safety Barriers

safety-barriers

Electrical Switches

electrical-switches

Switch Actuators

switch-actuators

Grainger

Dayton 30G321 Emergency Stop Push Button Yellow 30mm

dayton 30g321 emergency stop push button yellow 30mm tombol tekan berhenti darurat kuning heads butang kecemasan 紧急停止按钮 黄色 代顿

dayton-30g321-emergency-stop-push-button-yellow-30mm

Kraus & Naimer 9E1GE1XA/FSG3319 Legend Plate "emergency Stop" Yellow 60MM

<h3 class="md-block-header-three"><strong class="md-inline-bold">Kraus &amp; Naimer 9E1GE1XA/FSG3319 Legend Plate &quot;emergency Stop&quot; Yellow 60MM</strong></h3><p class="md-block-unstyled"><strong class="md-inline-bold">Desc :</strong></p><ul class="md-block-unordered-list-item"><li>Function : Legend Plate</li><li>Size (mm) : 22, 25</li><li>Outer Size : 60</li><li>Material : Plastic</li><li>Color : Yellow</li><li>Weight : 365 gr/Pack</li></ul>

<h3><strong>Kraus &amp; Naimer 9E1GE1XA/FSG3319 Legend Plate "emergency Stop" Yellow 60MM</strong></h3>
<p><strong>Desc :</strong></p>
<ul>
<li>Function : Legend Plate</li>
<li>Size (mm) : 22, 25</li>
<li>Outer Size : 60</li>
<li>Material : Plastic</li>
<li>Color : Yellow</li>
<li>Weight : 365 gr/Pack</li>
</ul>


Jimmy Foo

Philips

Thomas & Betts

BRADY

Bussmann

Weidmuller

FUJI

MILWAUKEE TOOL

Fuses & Fusegear

Contactors

Plugs & Connector 

Light Bulbs

Led Lights

Circuit Breaker

Pilot Lights

Junction & Enclosure Box

Other Electrical Accessories

Doreen Tan

buyerIntroduction

kraus naimer 9e1ge1xa/fsg3319 legend plate "emergency stop" yellow 60mm pelat legenda "berhenti darurat" kuning push button labels legends plat "hentian kecemasan" naimer/克劳斯和奈默 铭牌“紧急停止”黄色 60 毫米 克劳斯和奈默

kraus-naimer-9e1ge1xa-fsg3319-legend-plate-emergency-stop-yellow-60mm

Datasheet

RS PRO Site Safety Range Guide

Siemens

STANLEY

ECLIPSE TOOLS

Facom

RAPID

PEGLER YORKSHIRE

KARCHER

Screw

O Ring

Surface Mount Resistors

Bolts

Panel Mount Indicators 

Button Switch

Electrical Wire 

Aluminium Capacitors

Air Filters

RS Components ETH SG

Rs Pro 1745946 Black & Yellow Steel Protection Stop

rs pro 1745946 black yellow steel protection stop penghenti pelindung baja hitam kuning safety barriers hentian perlindungan keluli 黑黄钢保护挡块 rs专业版

rs-pro-1745946-black-yellow-steel-protection-stop

ZBY8330

Crouse-Hinds

Light Tubes

Schneider Electric ZBY8330 Legend, Harmony Xb4, Plastic, Yellow, 90Mm, for Emergency Stop, Marked Emergency Stop With Logo Iso13851

schneider electric zby8330 legend, harmony xb4, plastic, yellow, 90mm, emergency stop, marked stop logo iso13851 plastik, kuning, untuk berhenti darurat, ditandai darurat dengan push button labels legends hentian kecemasan, bertanda kecemasan legend，harmony xb4，塑料，黄色，90 毫米，用于紧急停止，带徽标 标记紧急停止 施耐德电气

schneider-electric-zby8330-legend-harmony-xb4-plastic-yellow-90mm-for-emergency-stop-marked-emergency-stop-with-logo-iso13851

Rs Pro 1745945 Black & Yellow Steel Protection Stop

rs pro 1745945 black yellow steel protection stop pelindung baja hitam kuning safety barriers hentian perlindungan keluli 黑黄钢保护挡块 rs专业版

rs-pro-1745945-black-yellow-steel-protection-stop

APC by Schneider Electric

CLIPSAL

Telemecanique

Square D

Light Switches

Miniature Circuit Breakers - MCBs

Uninterruptible Power Supply 

Molded Case Circuit Breakers - MCCBs

Overload Relays

Motor Protection Circuit Breakers

TV, Telephone & Internet Sockets

Schneider

Schneider Electric ZBY8330 Marked Legend, Harmony XB4, Plastic, Yellow, 90mm, for Emergency Stop, Marked Emergency Stop With Logo ISO13851

schneider electric zby8330 marked legend, harmony xb4, plastic, yellow, 90mm, emergency stop, stop logo iso13851 ditandai legenda, plastik, kuning, untuk berhenti darurat, darurat dengan push button labels legends lagenda bertanda, harmoni hentian kecemasan, kecemasan bertanda 施耐德电气 标记图例，harmony xb4，塑料，黄色，90mm，用于紧急停止，标记紧急停止，带徽标

schneider-electric-zby8330-marked-legend-harmony-xb4-plastic-yellow-90mm-for-emergency-stop-marked-emergency-stop-with-logo-iso13851

Rs Pro 1745947 Black & Yellow Steel Protection Stop

rs pro 1745947 black yellow steel protection stop penghenti pelindung baja hitam kuning safety barriers hentian perlindungan keluli 黑黄钢保护挡块 rs专业版

rs-pro-1745947-black-yellow-steel-protection-stop

Rs Pro 1745944 Black & Yellow Steel Protection Stop

rs pro 1745944 black yellow steel protection stop pelindung baja hitam kuning safety barriers hentian perlindungan keluli 黑黄钢保护挡块 rs专业版

rs-pro-1745944-black-yellow-steel-protection-stop

 Omron Industrial Automation A22Z-EG1 E-STOP Shroud, Yellow

For Use With: Omron A22E Series Emergency Stop Switches
 

<h3 class="md-block-header-three"><strong class="md-inline-bold"> Omron Industrial Automation A22Z-EG1 E-STOP Shroud, Yellow</strong></h3><ul class="md-block-unordered-list-item"><li>E-STOP SHROUD<br/> </li><li>Colour: Yellow<br/> </li><li>For Use With: Omron A22E Series Emergency Stop Switches<br/> </li><li>Product Range: –<br/> </li><li>Part Number: 08R7307</li></ul>

<h3><strong> Omron Industrial Automation A22Z-EG1 E-STOP Shroud, Yellow</strong></h3>
<ul>
<li>E-STOP SHROUD<br>
&nbsp;</li>
<li>Colour: Yellow<br>
&nbsp;</li>
<li>For Use With: Omron A22E Series Emergency Stop Switches<br>
&nbsp;</li>
<li>Product Range: –<br>
&nbsp;</li>
<li>Part Number: 08R7307</li>
</ul>


Technical Data Sheet (14.31MB) EN

MULTICOMP PRO

Analog Devices

MULTICOMP

WIHA

Pro Power

Duratool

Tenma

Hakko

TR Fastenings

Multilayer Ceramic Capacitors

DC-DC Converters

Through Hole Resistors

Operational Amplifiers

Analogue to Digital Converters

Transceiver

Digital to Analogue Converters

Development Boards

Element14

Omron Industrial Automation A22Z-EG1 E-STOP Shroud, Yellow

omron industrial automation a22z-eg1 e-stop shroud, yellow kuning switch actuators automation/欧姆龙工业自动化 工业自动化 紧急停止罩，黄色 欧姆龙工业自动化

omron-industrial-automation-a22z-eg1-e-stop-shroud-yellow

Omron Industrial Automation A22ZEG1 Finger Guard, E-STOP Switch, Yellow 

For Use With: Omron A22E Series Emergency Stop Pushbutton Switches
 

<h3 class="md-block-header-three"><strong class="md-inline-bold">Omron Industrial Automation A22ZEG1 Finger Guard, E-STOP Switch, Yellow</strong> </h3><ul class="md-block-unordered-list-item"><li><strong class="md-inline-bold">FINGER GUARD, E-STOP SWITCH, YELLOW</strong><br/> </li><li><strong class="md-inline-bold">For Use With:</strong> Omron A22E Series Emergency Stop Pushbutton Switches<br/> </li><li><strong class="md-inline-bold">Product Range:</strong> –<br/> </li><li><strong class="md-inline-bold">SVHC:</strong> No SVHC (27-Jun-2018)</li></ul>

<h3><strong>Omron Industrial Automation A22ZEG1 Finger Guard, E-STOP Switch, Yellow</strong>&nbsp;</h3>
<ul>
<li><strong>FINGER GUARD, E-STOP SWITCH, YELLOW</strong><br>
&nbsp;</li>
<li><strong>For Use With:</strong> Omron A22E Series Emergency Stop Pushbutton Switches<br>
&nbsp;</li>
<li><strong>Product Range:</strong> –<br>
&nbsp;</li>
<li><strong>SVHC:</strong> No SVHC (27-Jun-2018)</li>
</ul>


Omron Industrial Automation A22ZEG1 Finger Guard, E-STOP Switch, Yellow

omron industrial automation a22zeg1 finger guard, e-stop switch, yellow pelindung jari a22zeg1, sakelar e-stop, kuning switch actuators pengawal jari, suis automation/欧姆龙工业自动化 工业自动化 手指保护装置、急停开关、黄色 欧姆龙工业自动化

omron-industrial-automation-a22zeg1-finger-guard-e-stop-switch-yellow

Omron Industrial Automation A22ZEG2 Finger Guard, E-STOP Switch, Yellow 

<h3 class="md-block-header-three"><strong class="md-inline-bold">Omron Industrial Automation A22ZEG2 Finger Guard, E-STOP Switch, Yellow</strong> </h3><ul class="md-block-unordered-list-item"><li><strong class="md-inline-bold">FINGER GUARD, E-STOP SWITCH, YELLOW</strong><br/> </li><li><strong class="md-inline-bold">For Use With:</strong> Omron A22E Series Emergency Stop Pushbutton Switches<br/> </li><li><strong class="md-inline-bold">Product Range:</strong> –<br/> </li><li><strong class="md-inline-bold">SVHC:</strong> No SVHC (27-Jun-2018)</li></ul>

<h3><strong>Omron Industrial Automation A22ZEG2 Finger Guard, E-STOP Switch, Yellow</strong>&nbsp;</h3>
<ul>
<li><strong>FINGER GUARD, E-STOP SWITCH, YELLOW</strong><br>
&nbsp;</li>
<li><strong>For Use With:</strong> Omron A22E Series Emergency Stop Pushbutton Switches<br>
&nbsp;</li>
<li><strong>Product Range:</strong> –<br>
&nbsp;</li>
<li><strong>SVHC:</strong> No SVHC (27-Jun-2018)</li>
</ul>


Technical Data Sheet (12.24MB) EN

Omron Industrial Automation A22ZEG2 Finger Guard, E-STOP Switch, Yellow

omron industrial automation a22zeg2 finger guard, e-stop switch, yellow pelindung jari a22zeg2, sakelar e-stop, kuning switch actuators pengawal jari, suis automation/欧姆龙工业自动化 工业自动化 手指保护装置、急停开关、黄色 欧姆龙工业自动化

omron-industrial-automation-a22zeg2-finger-guard-e-stop-switch-yellow

Omron Industrial Automation A22ZEG22 Finger Guard, E-STOP Switch, Yellow 

<h3 class="md-block-header-three"><strong class="md-inline-bold">Omron Industrial Automation A22ZEG22 Finger Guard, E-STOP Switch, Yellow</strong> </h3><ul class="md-block-unordered-list-item"><li><strong class="md-inline-bold">FINGER GUARD, E-STOP SWITCH, YELLOW</strong><br/> </li><li><strong class="md-inline-bold">For Use With:</strong> Omron A22E Series Emergency Stop Pushbutton Switches<br/> </li><li><strong class="md-inline-bold">Product Range:</strong> -<br/> </li><li><strong class="md-inline-bold">SVHC:</strong> No SVHC (27-Jun-2018)</li></ul>

<h3><strong>Omron Industrial Automation A22ZEG22 Finger Guard, E-STOP Switch, Yellow</strong>&nbsp;</h3>
<ul>
<li><strong>FINGER GUARD, E-STOP SWITCH, YELLOW</strong><br>
&nbsp;</li>
<li><strong>For Use With:</strong> Omron A22E Series Emergency Stop Pushbutton Switches<br>
&nbsp;</li>
<li><strong>Product Range:</strong> -<br>
&nbsp;</li>
<li><strong>SVHC:</strong> No SVHC (27-Jun-2018)</li>
</ul>


Omron Industrial Automation A22ZEG22 Finger Guard, E-STOP Switch, Yellow

omron industrial automation a22zeg22 finger guard, e-stop switch, yellow pelindung jari a22zeg22, sakelar e-stop, kuning switch actuators pengawal jari, suis automation/欧姆龙工业自动化 工业自动化 手指保护装置、急停开关、黄色 欧姆龙工业自动化

omron-industrial-automation-a22zeg22-finger-guard-e-stop-switch-yellow

XALK178H7

Schneider Electric XALK178H7 Harmony, Control Station, Plastic, Yellow, 1 Red Mushroom Head Push Button Ø40, Emergency Stop Turn to Release 1 Nc, Unmarked, Ul/Csa Certified

schneider electric xalk178h7 harmony, control station, plastic, yellow, red mushroom head push button ø40, emergency stop turn release nc, unmarked, ul/csa certified stasiun kontrol, plastik, kuning, tombol tekan kepala jamur merah putaran berhenti darurat untuk melepaskan tanpa tanda, bersertifikat buttons harmoni, stesen kawalan, butang cendawan pusingan kecemasan tidak bertanda, diperakui harmony，控制站，塑料，黄色，1 个红色蘑菇头按钮 ø40，紧急停止旋转释放 nc，无标记，ul/csa 认证 施耐德电气

schneider-electric-xalk178h7-harmony-control-station-plastic-yellow-1-red-mushroom-head-push-button-40-emergency-stop-turn-to-release-1-nc-unmarked-ul-csa-certified

XACA2014

Schneider Electric XACA2014 Harmony Xac, Pendant Control Station, Plastic, Yellow Pistol Grip, 2 Push Buttons + 1 Emergency Stop

schneider electric xaca2014 harmony xac, pendant control station, plastic, yellow pistol grip, push buttons emergency stop stasiun kontrol liontin, plastik, pegangan kuning, tombol tekan berhenti darurat stesen kawalan loket, cengkaman butang hentian kecemasan 施耐德电气 xac，吊坠控制站，塑料，黄色手枪式握把，2 个按钮 个紧急停止按钮

schneider-electric-xaca2014-harmony-xac-pendant-control-station-plastic-yellow-pistol-grip-2-push-buttons-1-emergency-stop

Product Datasheet

Instruction sheet

Catalogue

Environmental disclosure

EasyPact Circuit Breakers 

Standby battery 

Schneider Electric XACA2914 Harmony Xac, Pendant Control Station, Plastic, Yellow, 2 Push Buttons, 1 Emergency Stop

schneider electric xaca2914 harmony xac, pendant control station, plastic, yellow, push buttons, emergency stop stasiun kontrol liontin, plastik, kuning, tombol tekan, berhenti darurat switches stesen kawalan loket, butang hentian kecemasan 施耐德电气 xac，吊坠控制站，塑料，黄色，2 个按钮，1 个紧急停止

schneider-electric-xaca2914-harmony-xac-pendant-control-station-plastic-yellow-2-push-buttons-1-emergency-stop

Schneider Electric Pendant Control Station, Harmony Xac, Plastic, Yellow, Pistol Grip, 2 Push Buttons With 2NO, 1 Emergency Stop Nc XACA2073

This Harmony XAC, yellow pendant station for hoist motor with pistol grip has 2-speed, operates with slow break mechanism. This pendant station for hoist motor is designed for standard or medium-duty control circuit applications in your machines. It has 2 push buttons and 1 emergency stop with "raise" and "lower" markings, with normally open and normally close contact. It is impact resistant, dust resistant, water resistant and vibration resistant thanks to its IP65, making it ideal for operation in harsh environments. Its ergonomic pistol grip allows single handed control of your hoist and crane. It offers movement in 2 speeds (low and high) for each movements. Its ergonomic pistol grip allows single handed control of your hoist and crane.                  

<h3 class="md-block-header-three"><strong class="md-inline-bold">Schneider Electric Pendant Control Station, Harmony Xac, Plastic, Yellow, Pistol Grip, 2 Push Buttons With 2NO, 1 Emergency Stop Nc XACA2073</strong></h3><p class="md-block-unstyled">This Harmony XAC, yellow pendant station for hoist motor with pistol grip has 2-speed, operates with slow break mechanism. This pendant station for hoist motor is designed for standard or medium-duty control circuit applications in your machines. It has 2 push buttons and 1 emergency stop with &quot;raise&quot; and &quot;lower&quot; markings, with normally open and normally close contact. It is impact resistant, dust resistant, water resistant and vibration resistant thanks to its IP65, making it ideal for operation in harsh environments. Its ergonomic pistol grip allows single handed control of your hoist and crane. It offers movement in 2 speeds (low and high) for each movements. Its ergonomic pistol grip allows single handed control of your hoist and crane.                  </p>

<h3><strong>Schneider Electric Pendant Control Station, Harmony Xac, Plastic, Yellow, Pistol Grip, 2 Push Buttons With 2NO, 1 Emergency Stop Nc XACA2073</strong></h3>
<p>This Harmony XAC, yellow pendant station for hoist motor with pistol grip has 2-speed, operates with slow break mechanism. This pendant station for hoist motor is designed for standard or medium-duty control circuit applications in your machines. It has 2 push buttons and 1 emergency stop with "raise" and "lower" markings, with normally open and normally close contact. It is impact resistant, dust resistant, water resistant and vibration resistant thanks to its IP65, making it ideal for operation in harsh environments. Its ergonomic pistol grip allows single handed control of your hoist and crane. It offers movement in 2 speeds (low and high) for each movements. Its ergonomic pistol grip allows single handed control of your hoist and crane.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</p>


XACA2073

Schneider Electric XACA2073 Pendant Control Station, Harmony Xac, Plastic, Yellow, Pistol Grip, 2 Push Buttons With 2NO, 1 Emergency Stop Nc

schneider electric xaca2073 pendant control station, harmony xac, plastic, yellow, pistol grip, push buttons 2no, emergency stop nc stasiun kontrol liontin xaca2073, plastik, kuning, pegangan pistol, tombol tekan dengan berhenti darurat stations, enclosures stesen kawalan loket harmoni cengkaman butang hentian kecemasan electric/施耐德电气 吊坠控制站，harmony xac，塑料，黄色，手枪式握把，2 个按钮，2 个常开，1 个紧急停止常闭 施耐德电气

schneider-electric-xaca2073-pendant-control-station-harmony-xac-plastic-yellow-pistol-grip-2-push-buttons-with-2no-1-emergency-stop-nc

XACA2813

Schneider Electric XACA2813 Harmony Xac, Pendant Control Station, Plastic, Yellow, 2 Push Buttons With No+nc, 1 Emergency Stop Nc

schneider electric xaca2813 harmony xac, pendant control station, plastic, yellow, push buttons no+nc, emergency stop nc stasiun kontrol liontin, plastik, kuning, tombol tekan tanpa+nc, berhenti darurat stations, enclosures stesen kawalan loket, butang hentian kecemasan xac，悬挂式控制台，塑料，黄色，2 个按钮，带 no+nc，1 个紧急停止 施耐德电气

schneider-electric-xaca2813-harmony-xac-pendant-control-station-plastic-yellow-2-push-buttons-with-no-nc-1-emergency-stop-nc

Schneider Electric XACA2813 Pendant Control Station, Harmony Xac, Plastic, Yellow, 2 Push Buttons With No+nc, 1 Emergency Stop Nc

schneider electric xaca2813 pendant control station, harmony xac, plastic, yellow, push buttons no+nc, emergency stop nc stasiun kontrol liontin xaca2813, plastik, kuning, tombol tekan tanpa nc, berhenti darurat switches stesen kawalan loket butang tanpa+nc, hentian kecemasan 施耐德电气 吊坠控制站，harmony xac，塑料，黄色，2 个按钮，常闭+常闭，1 个紧急停止常闭

schneider-electric-xaca2813-pendant-control-station-harmony-xac-plastic-yellow-2-push-buttons-with-no-nc-1-emergency-stop-nc

Schneider Electric XACA2713 Pendant Control Station, Harmony Xac, Plastic, Yellow, 2 Push Buttons With 1NO, 1 Emergency Stop Nc

schneider electric xaca2713 pendant control station, harmony xac, plastic, yellow, push buttons 1no, emergency stop nc stasiun kontrol liontin xaca2713, plastik, kuning, tombol tekan dengan berhenti darurat switches stesen kawalan loket butang hentian kecemasan 施耐德电气 吊坠控制站，harmony xac，塑料，黄色，2 个按钮，1 个常开，1 个紧急停止常闭

schneider-electric-xaca2713-pendant-control-station-harmony-xac-plastic-yellow-2-push-buttons-with-1no-1-emergency-stop-nc

XACA2713

Schneider Electric XACA2713 Harmony Xac, Pendant Control Station, Plastic, Yellow, 2 Push Buttons With 1No, 1 Emergency Stop Nc

schneider electric xaca2713 harmony xac, pendant control station, plastic, yellow, push buttons 1no, emergency stop nc stasiun kontrol liontin, plastik, kuning, tombol tekan dengan berhenti darurat stations, enclosures stesen kawalan loket, butang hentian kecemasan xac，悬吊式控制站，塑料，黄色，2 个按钮，带 个，1 个紧急停止 施耐德电气

schneider-electric-xaca2713-harmony-xac-pendant-control-station-plastic-yellow-2-push-buttons-with-1no-1-emergency-stop-nc

Schneider Electric XALK178H7 Control Station, Harmony, Plastic, Yellow, 1 Red Mushroom Head Push Button 40mm, Emergency Stop Turn to Release 1 Nc, Unmarked, Ul Csa Certified

schneider electric xalk178h7 control station, harmony, plastic, yellow, red mushroom head push button 40mm, emergency stop turn release nc, unmarked, ul csa certified stasiun kontrol xalk178h7, harmoni, plastik, kuning, tombol tekan kepala jamur merah putaran berhenti darurat untuk melepaskan tanpa tanda, bersertifikat stations, pendant enclosures stesen kawalan butang cendawan pusingan kecemasan tidak bertanda, diperakui 控制站，harmony，塑料，黄色，1 个红色蘑菇头按钮 40mm，紧急停止旋转释放 nc，无标记，ul 认证 施耐德电气

schneider-electric-xalk178h7-control-station-harmony-plastic-yellow-1-red-mushroom-head-push-button-40mm-emergency-stop-turn-to-release-1-nc-unmarked-ul-csa-certified

Schneider Electric XALK198 Control Station, Harmony Xald, Xalk, Plastic, Yellow, 1 Red Mushroom Head Push Button 40mm, Emergency Stop Push Pull 1 Nc, Unmarked

schneider electric xalk198 control station, harmony xald, xalk, plastic, yellow, red mushroom head push button 40mm, emergency stop pull nc, unmarked stasiun kontrol xalk198, plastik, kuning, tombol tekan kepala jamur merah tarik berhenti darurat tanpa tanda stations, pendant enclosures stesen kawalan butang cendawan kecemasan tidak bertanda 施耐德电气 控制站，harmony xald，xalk，塑料，黄色，1 个红色蘑菇头按钮 40mm，紧急停止推拉 nc，无标记

schneider-electric-xalk198-control-station-harmony-xald-xalk-plastic-yellow-1-red-mushroom-head-push-button-40mm-emergency-stop-push-pull-1-nc-unmarked

schneider electric xaca2014 harmony xac, pendant control station, plastic, yellow pistol grip, push buttons emergency stop stasiun kontrol liontin, plastik, pegangan kuning, tombol tekan berhenti darurat switches stesen kawalan loket, cengkaman butang hentian kecemasan 施耐德电气 xac，吊坠控制站，塑料，黄色手枪式握把，2 个按钮 个紧急停止按钮