LBQC53 Explosion-Proof Magnetic Starter (IIB / IIC)
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Explosion protection: Ex d e ⅡC T6 Gb/DIP A21 TA, T6
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Suitable for:Zone 1, Zone 2, Zone 21 & Zone 22
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Enclosure protection: IP65
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Anti-corrosion Grade: WF1
Product Overview
The LBQC53 explosion-proof magnetic starter is designed for safe motor starting and protection in hazardous locations where flammable gas or vapor may be present. It integrates a magnetic contactor and overload protection in a rugged enclosure for reliable operation in harsh industrial environments.
This flameproof motor starter supports IIB and IIC gas group options, making it suitable for common hazardous-area motor control tasks such as pumps, fans, mixers, conveyors, and small machinery in oil & gas, chemical, and refinery projects. OEM configuration and cable entry options are available for project matching.
Application
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Oil & gas production and storage facilities
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Chemical & petrochemical plants
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Refineries and solvent handling areas
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Hazardous-area pump / fan / conveyor motor control
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Utility rooms and industrial zones requiring Ex protection
Technical Parameters
| Item | Specification |
|---|---|
| Rated Voltage | 380VAC, 50/60Hz |
| Explosion Protection | Ex d e IIB T4 Gb / Ex d e IIC T4 Gb |
| Protection Level | IP65 |
| Enclosure Material | Die-cast Aluminum Alloy (ZL102) |
| Installation Type | Wall Mounted |
| Cable Entry Direction | Bottom Inlet / Bottom Outlet |
| Internal Components | Contactor, Thermal Relay, Terminal Blocks, Push Buttons |
| Applicable Standards | IEC 60079-0 / 1 / 7, EN 60079-0 / 1 / 7, GB 3836.1 / 2 / 3 |
Features
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Rugged enclosure for harsh environments and long service life
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Integrated motor control and overload protection for safer operation
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Multiple current ratings to match common motor loads
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IP65 sealing design for dust and water spray resistance
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Flexible cable entry threads and cable O.D. range options
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OEM label / wiring / internal configuration available for projects
Outline & Mounting
Model Designation
Product Selection Table
| Model | Motor Power (kW) | Rated Current (A) | Thermal Relay Setting Range (A) | Cable Entry Thread | Cable Diameter (mm) |
|---|---|---|---|---|---|
| LBQC53-10 | 4 | 12 | 6.8 – 11 | G3/4 | Φ10 – Φ14 |
| LBQC53-20 | 7.5 | 25 | 14 – 22 | G3/4 | Φ10 – Φ14 |
| LBQC53-40 | 11 | 38 | 28 – 45 | G1 | Φ12 – Φ18 |
| LBQC53-60 | 18.5 | 65 | 45 – 63 | G1 1/4 | Φ18 – Φ26 |
| LBQC53-100 | 30 | 95 | 75 – 120 | G1 1/2 | Φ22 – Φ32 |
Notes: The table lists common configurations. Other configurations can be customized according to the model code and project requirements (cable entry, internal components, and labeling).
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.