You’ll compare six top emergency stop switches by actuation type, size, and IP rating, then pick options like 22 mm HB2-BS544 or APIELE 22 mm red mushroom models for panel mounts, plus 40 mm red mushroom types for harsh environments. For each, confirm 1NO+1NC or 2NC wiring, latching vs momentary, and panel thickness compatibility, then map out the wiring and reset steps. Decide which fits your system, then continue with concrete checks and installation steps.
| Push Button Emergency Stop Switch 2P 1NO 1NC |
| Best All-Around | Mount Size (Diameter): 40 mm | Contact Type: 1 NO + 1 NC | Current Rating (Ith): 10 A | VIEW LATEST PRICE | Read Our Analysis |
| Emergency Stop Push Button Switch 22mm Red HB2-BS544 |
| Compact Reliability | Mount Size (Diameter): 22 mm | Contact Type: 2 NC | Current Rating (Ith): 10 A | VIEW LATEST PRICE | Read Our Analysis |
| E-Stop Button 22mm 440V IP65 Waterproof Self-Locking |
| Industrial Durability | Mount Size (Diameter): 22 mm | Contact Type: 1 NO + 1 NC | Current Rating (Ith): 10 A | VIEW LATEST PRICE | Read Our Analysis |
| APIELE 22mm Red Mushroom Emergency Stop Switch |
| Quick-Latch Safety | Mount Size (Diameter): 22 mm | Contact Type: 1 NC | Current Rating (Ith): 10 A | VIEW LATEST PRICE | Read Our Analysis |
| Mxuteuk 2pcs Mushroom Emergency Stop Push Button Switches |
| Value Duo Pack | Mount Size (Diameter): 22 mm | Contact Type: 2 NC | Current Rating (Ith): 10 A | VIEW LATEST PRICE | Read Our Analysis |
| RuoFeng 22mm E-Stop Push Button Switch 2Pcs |
| Premium Build | Mount Size (Diameter): 22 mm | Contact Type: 1 NO + 1 NC | Current Rating (Ith): 10 A | VIEW LATEST PRICE | Read Our Analysis |
More Details on Our Top Picks
Push Button Emergency Stop Switch 2P 1NO 1NC
The Push Button Emergency Stop Switch 2P 1NO 1NC is ideal when you need immediate, clearly defined stop control for machines rated up to 660V and 10A. You install the unit as a DPST with one normally open and one normally closed contact. The switch supports AC 660V and 10A, with four terminals for wiring. The 40mm red mushroom cap is easy to spot during an emergency. Mount in a 5mm hole, fit panels up to 32mm thick, and note dimensions: 78x72x91mm. Use momentary operation for quick, decisive stop; verify wiring, testing, and labeling after installation.
- Mount Size (Diameter):40 mm
- Contact Type:1 NO + 1 NC
- Current Rating (Ith):10 A
- Voltage Rating (Ui):660 V AC
- Actuation Type:Latching (momentary)
- Panel Thickness Range (Fit):32 mm
- Additional Feature:Momentary operation
- Additional Feature:40mm red mushroom cap
- Additional Feature:4 terminal points
Emergency Stop Push Button Switch 22mm Red HB2-BS544
If you’re selecting an emergency stop switch for a 22mm panel, the HB2-BS544 stands out because it’s a 2NC, 10A rated, 600V latching unit designed for reliable shutdowns in AC systems up to 660V. You fit it to a 22mm hole, confirm panel thickness up to 6mm, and verify 40mm button diameter for visibility. In use, test the 2NC contacts, ensure Ui is respected, and confirm latching action will hold the switch until reset. For wiring, connect two normally closed paths, and document current draw, voltage rating, and mounting torque for maintenance checks. Proceed with standard safety procedures during installation.
- Mount Size (Diameter):22 mm
- Contact Type:2 NC
- Current Rating (Ith):10 A
- Voltage Rating (Ui):600 V AC
- Actuation Type:Latching
- Panel Thickness Range (Fit):6 mm
- Additional Feature:2NC contacts
- Additional Feature:22mm mounting
- Additional Feature:Latching type
E-Stop Button 22mm 440V IP65 Waterproof Self-Locking
Choose the 22mm E-Stop Button with 440V IP65 waterproof self-locking when you need a reliable, in‑line safety switch for harsh environments. You install the device on industrial machinery or vehicles by aligning the 22mm body, securing the panel, and connecting 1NO+1NC contacts rated 440V/10A. Verify IP65 dust and water sealing, ensuring no gaps after mounting. Engage the self-locking shut-off by pressing the push, then rotate to release only when safe. Use the 10A rating for load planning and maintain corrosion-resistant aluminum enclosure. Test the mechanism monthly and replace the contacts if signs of wear appear.
- Mount Size (Diameter):22 mm
- Contact Type:1 NO + 1 NC
- Current Rating (Ith):10 A
- Voltage Rating (Ui):440 V
- Actuation Type:Self-locking / push-to-lock
- Panel Thickness Range (Fit):Not explicitly stated; implied panel mounting
- Additional Feature:IP65 waterproof
- Additional Feature:1NO+1NC contacts
- Additional Feature:22mm aluminum body
APIELE 22mm Red Mushroom Emergency Stop Switch
APIELE’s 22mm Red Mushroom Emergency Stop Switch stands out for its latching, push-lock action that you can release only by turning, making it a reliable choice when you need a deliberate stop that won’t reset accidentally. You choose the XB2-01ZS model for 600 V, 10 A and a 39 x 29 x 73 cm body with 8.5 mm max panel thickness. To install, mount the switch in a 22mm hole, wire 1NC silver contact, and test the push-lock release by turning. If damaged, replace under the three-year new-condition claim for a fresh unit. Ensure proper labeling and clear access paths for quick stop action.
- Mount Size (Diameter):22 mm
- Contact Type:1 NC
- Current Rating (Ith):10 A
- Voltage Rating (Ui):600 V
- Actuation Type:Latching
- Panel Thickness Range (Fit):Max 8.5 mm
- Additional Feature:600V rating
- Additional Feature:1NC contact
- Additional Feature:XB2-01ZS series
Mxuteuk 2pcs Mushroom Emergency Stop Push Button Switches
Mxuteuk’s 2-piece Mushroom Emergency Stop Push Button Switches stand out for their 22mm mounting and 2NC contact configuration, making them a practical pick when you need a compact, reliable emergency stop solution. You install the two switches as a pair, each with a 40mm button diameter and a 22mm mounting hole. The device uses 2 NC contacts, with Ith rated at 10A and Ui at 600V. Fit panel thickness up to 6mm, with overall size about 39 x 29 x 73mm. The package includes two switches, model LA36-02ZS, ready for wiring and testing in your system.
- Mount Size (Diameter):22 mm
- Contact Type:2 NC
- Current Rating (Ith):10 A
- Voltage Rating (Ui):600 V
- Actuation Type:Latching
- Panel Thickness Range (Fit):6 mm
- Additional Feature:2 pieces included
- Additional Feature:2 NC contacts
- Additional Feature:LA36-02ZS model
RuoFeng 22mm E-Stop Push Button Switch 2Pcs
If you’re evaluating emergency stop options for a 22 mm panel, the RuoFeng 22mm E-Stop Push Button Switch 2Pcs stands out for its DPST design with 1 NO + 1 NC contact pair and a latching action. You get two red mushroom caps, a 60 mm sign, and four-pin terminals. Use one unit for a safe stop and the other as a backup. The device supports 660 V and 10 A, with flame-retardant, heat resistant housing. Mount on a 22 mm hole, secure the panel, and test both NO and NC paths for proper operation. Replace worn caps as needed.
- Mount Size (Diameter):22 mm
- Contact Type:1 NO + 1 NC
- Current Rating (Ith):10 A
- Voltage Rating (Ui):660 V
- Actuation Type:Latching
- Panel Thickness Range (Fit):6 mm
- Additional Feature:60mm sign
- Additional Feature:Red mushroom cap
- Additional Feature:2Pcs packaging
Factors to Consider When Choosing Emergency Stop Push Button Switch
When choosing an emergency stop push button switch, start by checking your voltage and current rating to ensure it handles the motor or circuit load you’re protecting. Then select the contact configuration and mounting size that match your panel and wiring, and verify the actuation mechanism type fits how you’ll operate it in an emergency. Finally, confirm the IP rating for your environment and verify you have the right mounting compatibility and required safety certifications.
Voltage and Current Rating
Choosing the right voltage and current ratings is essential for safe operation. You must verify the switch’s Ui matches or exceeds your system voltage to prevent insulation breakdown or arcing. Check that the Ith rating supports the continuous current your load requires; if you have a 10 A demand, a switch rated at 10 A or higher is acceptable. Consider both ratings together: they determine suitability for AC control circuits and high‑power equipment. Do not use a switch with a lower current rating than your actual draw, and avoid switches with Ui below system voltage. When in doubt, select a model with a comfortable safety margin, such as Ui above your nominal voltage and Ith above peak current. Confirm compatibility before installation to reduce risk of failure.
Contact Configuration Choice
There are several contact configurations to contemplate, and each affects how a stop button behaves in an emergency. You choose a 2NO+2NC or 1NO+1NC configuration to provide both normally open and normally closed paths, enabling safe start/stop control and immediate circuit interruption. A 1NO+1NC (DPST) setup means one push button position closes one circuit and opens another, allowing interlocked control or safety interlocks in a single device. A 2NC configuration continuously maintains a closed state until actuation, suitable for fail-safe shutoff in certain control circuits. Consider whether you need latching (self-locking) or momentary action, since this affects reset after an emergency. Match the contact configuration to your control circuit’s interlock and safety logic for proper stoppage.
Mounting Size Compatibility
To ensure a proper fit, verify mounting size compatibility by confirming both the panel hole diameter and the panel thickness before selecting a switch. Mounting size is defined by the panel hole diameter, with common options at 22 mm and 40 mm in the listed products. Ensure the hole matches the switch’s mounting size, such as 22 mm or 5 mm panel hole options noted. Also check panel thickness compatibility, with adjustable ranges from 6 mm to 8.5 mm; this affects fit and mounting stability. Consider the overall body dimensions—about 39 × 29 × 73 mm for 22 mm variants and 78 × 72 × 91 mm for 40 mm variants—to ensure space behind the panel. Confirm both hole size and panel thickness before installation.
Actuation Mechanism Type
Actuation mechanism type is a primary safety and maintenance decision. You choose between latching (self-locking) and momentary types. Latching stays engaged until you perform a deliberate release action, often a twist or secondary step, improving reset reliability in safety-critical applications. Momentary types reset after actuation, requiring a new push to re-engage. Some 22 mm and 40 mm varieties offer push-to-lock/turn-to-release or push-to-unlock options, affecting how easy it is to reset during maintenance. The choice between latching and non-latching affects safety compliance, since latching designs are commonly used for safe-stopping in industrial controls. Actuation type is specified with contact configuration (for example, 1NO+1NC) and voltage/current ratings (such as 600V/660V, 10A), guiding circuit compatibility.
IP Rating Suitability
When selecting an emergency stop switch, start by matching the IP rating to your environment. IP ratings show dust and water protection. Common options are IP65 and IP67. An IP65 switch is dust-tight and protected against water jets, suitable for dusty or splashing areas but not immersion. An IP67 device adds immersion protection, ideal for washdown or submerged-risk zones, though it may cost more or use larger seals. For outdoor or harsh sites, prioritize IP65 or higher with rugged construction to stay reliable amid moisture and debris. When choosing, map exposure to water jets, immersion, or heavy dust, and select a model that meets or exceeds those needs. Verify compatibility with accessories and mounting, then proceed to installation.
Panel Thickness Fit
Panel thickness matters now that you’ve checked IP rating, because the switch must mount securely without gaps. First, confirm the switch’s panel thickness range matches your panel material, gasket, or bezel. Look for models that state an adjustable or explicit windowe such as 6 to 8.5 mm, and note the exact measurements. Then measure your panel now, including any gasket, to verify compatibility before ordering. If your panel sits at the upper edge of a range, anticipate potential tight mounting and confirm thread engagement with the mounting nut. A mismatch prevents proper engagement and can misalign the actuator. Consider examples that specify a 6–8.5 mm window, and choose those that clearly list acceptable thickness ranges. Validate compatibility against enclosure tolerances and proceed to install.
Color and Visibility
Color and visibility are key for quick recognition and safe operation. You choose emergency stop switches with red mushroom caps or red casings to ensure immediate visibility in busy environments. Larger 40 mm buttons are more noticeable at a distance, so prefer them when operators stand far from the panel. Use high-contrast caps, like red with white text or symbols, to improve legibility of markings and instructions. Ensure IP65 or IP67 ratings to protect visibility in dusty or wet conditions, keeping the stop clearly seen. For a clear halt state, select latching designs that lock in the stopped position and provide visual confirmation. Combine red color, high contrast, and appropriate ratings for reliable recognition and operation.
Final Thoughts
To choose an E-stop, compare 22 mm and 40 mm models, check 1NO+1NC or 2NC wiring, and decide between latching or momentary action. Verify IP65/67 ratings for your environment, panel thickness compatibility (22 mm up to 6 mm, 40 mm up to 32 mm), and reset procedures. Confirm voltage and current ratings (e.g., 440–600V, 10A). Ensure proper wiring, mounting, and interlock safety. Choose the model with clear labelling, reliable switch life, and straightforward reset steps.
Meet Ry, “TechGuru,” a 36-year-old technology enthusiast with a deep passion for tech innovations. With extensive experience, he specializes in gaming hardware and software, and has expertise in gadgets, custom PCs, and audio.
Besides writing about tech and reviewing new products, he enjoys traveling, hiking, and photography. Committed to keeping up with the latest industry trends, he aims to guide readers in making informed tech decisions.