BLX5 Explosion-Proof Limit Switch (Ex d IIB / IIC T6)
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Explosion protection: Ex d IIB T6 Gb / Ex tD A21 IP66 T80℃
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Suitable for Zone 1, Zone 2, Zone 21 & Zone 22
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Protection grade: IP54 / IP65
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Anti-corrosion grade: WF1
Product Overview
The BLX5 Series Explosion-Proof Limit Switch is designed for position detection and motion control in hazardous industrial environments where explosive gases or combustible dust may be present.
This flameproof limit switch features a rugged die-cast aluminum housing with electrostatic powder coating, ensuring reliable operation in harsh conditions such as oil & gas plants, chemical facilities, offshore platforms, and heavy industrial sites.
The BLX5 limit switch provides precise mechanical actuation and high durability, making it ideal for safety interlocking, conveyor systems, and automation equipment in explosion-risk areas.
Application
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Oil & gas extraction facilities
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Chemical and petrochemical plants
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Offshore platforms and tankers
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Mining and heavy industry
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Conveyor and automation systems
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Dust explosion environment
Technical Parameters
| Item | Specification |
|---|---|
| Explosion marking | Ex d IIB T6 Gb / Ex d IIC T6 Gb |
| Rated voltage | AC220V / AC380V |
| Rated current | 10A |
| Protection grade | IP54 / IP65 |
| Anti-corrosion grade | WF1 |
| Contact configuration | 1NO + 1NC |
| Cable entry | G1/2″ |
| Cable diameter | φ6mm – φ12mm |
| Standards | GB3836 / IEC equivalent |
Features
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Die-cast aluminum alloy housing
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Flameproof structure for hazardous areas
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High mechanical durability
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Flexible wiring (cable or conduit)
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Reliable switching performance
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Long service life
Outline & Mounting
Model Designation
Product Selection Table
| Model | Actuator Type | Description |
|---|---|---|
| BLX5-D | Single lever | Standard mechanical actuation |
| BLX5-L | Roller plunger | Conveyor position sensing |
| BLX5-S | Double lever | Bidirectional detection |
| BLX5-Z | Plunger type | Compact installation |
| BLX5-N | Flexible contact | High sensitivity switching |
| BLX5-K | Adjustable type | Customizable actuation |
Why Choose Ex-ZS for Explsion Proof Electrical Equipments
Direct Manufacturer
Fast Sampling & Stable Delivery
Strict QC System
Get Custom Explosion-Proof Solutions in 24 Hours
Send us your drawings or application details — our engineers will respond within 24 hours.
Frequently Asked Questions
What’s your company main products?
The main business is to provide customers with Explosion Proof LED Lights, Explosion-Proof Electrical Equipment,Explosion-Proof & Anti-Corrosion,Explosion-Proof Conduit Fittings.
How about the price of the product?
We are a manufacturer, we mainly provide customized services for our customers, and we believe that our prices have enough advantages.
What does the customization service contain?
Customization is available for selected products. Our main customizable products include explosion-proof control stations, distribution boxes, and other explosion-proof electrical equipment. Customization may include configuration, size, cable entries, control components, and special project requirements.
Can we get the sample? Is it free?
Yes, we could offer the general box sample for free charge,but need you pay the express. The freight depends on weight, packing size and your country or province region, etc.
What’s about MOQ?
First order MOQ=1pcs.
How can I get product catalogs?
You can get the catalogs by contacting us.
How to order our product?
1.Please tell us the model and quantity and other request you need.
2.We make the PI for you.
3.After you confirm the PI, we arrange the order for you after receiving your payment.
4.After the goods finished, we send the goods out to you and tell you the tracking number.
5.We will track your goods until you receive the goods.
How about the after-sale service?
If you meet any problems after sales, pis contact us freely, we’ll help solving the problems within 24 hours.
What’s the payment term?
100% T/T (large order, accept 30% T/T prepay 70% balance before shipping), Western Union, Paypal.





