{"title":"IEC Dust Zone Classification (Zone 20, 21 \u0026 22) LED Lighting","description":"\u003ch3\u003eWhat IEC Dust Zone Classification Means\u003c\/h3\u003e\n\n\u003cp\u003e\n  Under IEC and ATEX standards, combustible dust hazards are classified separately from gas hazards, using Zone 20, 21, and 22 — a parallel system to the gas-focused Zone 0, 1, and 2. Each zone reflects how frequently and for how long an explosive dust atmosphere is present, mirroring the logic of the gas zone system but applied to airborne and accumulated dust risk.\n\u003c\/p\u003e\n\n\u003cp\u003e\n  This system corresponds conceptually to the NEC's Class 2 Division 1 and Class 2 Division 2 dust classifications used in North America, though the specific equipment protection requirements and testing standards differ between the two frameworks.\n\u003c\/p\u003e\n\n\u003ch3\u003eComparing Zone 20, 21, and 22\u003c\/h3\u003e\n\n\u003cp\u003e\n  Each zone reflects a different frequency and duration of dust exposure:\n\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eZone 20\u003c\/strong\u003e applies where a combustible dust cloud is present continuously, or for long periods, or frequently — the highest-risk dust classification.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eZone 21\u003c\/strong\u003e applies where a combustible dust cloud is likely to occur occasionally during normal operation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eZone 22\u003c\/strong\u003e applies where a combustible dust cloud is not expected to occur during normal operation, and if it does, only briefly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhere Each Dust Zone Applies\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eZone 20\u003c\/strong\u003e — inside dust-handling equipment (e.g., inside a silo or dust collector) with continuous dust suspension\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eZone 21\u003c\/strong\u003e — areas immediately around dust-handling equipment where dust clouds occur occasionally, such as during loading or filling\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eZone 22\u003c\/strong\u003e — areas further from the primary dust source, where dust clouds are infrequent and dust accumulation is the main residual risk\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifying the Right Fixture\u003c\/h3\u003e\n\n\u003cp\u003e\n  A facility hazard assessment, typically performed by a qualified engineer under IEC\/ATEX methodology, determines which zone applies to each specific area based on the equipment, process, and dust characteristics involved. Fixtures rated for a specific zone should also be matched to the maximum surface temperature appropriate for the dust's ignition characteristics.\n\u003c\/p\u003e","products":[{"product_id":"block-h1","title":"BLOCK H1 Series","description":"\u003ch2\u003eExplosion-Proof Flood \u0026amp; High Bay Lighting Built for Class I Div 1\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eFacilities that can't risk an ignition source need a fixture engineered from the ground up for Class I Division 1 — the Block H1 Series delivers that protection with industry-leading efficacy.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eDesigned for hazardous and corrosive environments, the upgraded Block H1 Series delivers high-performance illumination with enhanced thermal management and expanded mounting flexibility for retrofit and new installations. At 146 lumens per watt, it's certified for explosion-proof use where flammable gases, vapors, and combustible dusts are present — including oil and gas rigs, petrochemical plants, and other hazardous corrosive facilities.\u003c\/p\u003e\n\u003cp\u003eRugged construction, separated LED and driver chambers, and superior heat dissipation ensure reliable operation in the most demanding industrial applications, with an L70 rated life exceeding 121,000 hours at 140°F.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Hazardous Location Design:\u003c\/strong\u003e Copper-free aluminum housing with stainless steel hardware built to resist corrosion, vibration, water, and dust.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcellent Heat Dissipation:\u003c\/strong\u003e Separated LED and driver chambers with external cooling fins for reliable performance up to +140°F.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong Fixture Life:\u003c\/strong\u003e L70 \u0026gt;121,000 hours @140°F for dependable operation and reduced maintenance costs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpanded Mounting Options:\u003c\/strong\u003e Now available in Pendant, Yoke, Pole, Ceiling, Stanchion, and Wall configurations for easier retrofit and new installations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Specify the Block H1 Series\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCertified for Class I Division 1 \u0026amp; 2 and Zone 1 \u0026amp; 2 — one fixture covers more of the site\u003c\/li\u003e\n\u003cli\u003e146 lm\/W efficacy cuts energy costs versus legacy HID fixtures\u003c\/li\u003e\n\u003cli\u003e10-year LED \/ 7-year driver warranty with factory replacement\u003c\/li\u003e\n\u003cli\u003eSix mounting configurations reduce SKU complexity for engineers and buyers\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Red Sky Lighting","offers":[{"title":"Default Title","offer_id":54355073859897,"sku":"BLK2 H1","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0991\/4040\/3513\/files\/01-Cover-1.jpg?v=1787358187"},{"product_id":"block-h2-series","title":"BLOCK H2 Series","description":"\u003ch2\u003eDurable, Versatile LED Lighting for Class I Division 2 Zones\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eFor facilities where flammable gases or dust are a possibility rather than a constant, the Block H2 Series delivers explosion-proof-grade durability at Division 2 pricing and flexibility.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eDesigned to withstand hazardous environments, the Block H2 Series excels with a luminous efficacy of 146 lumens per watt. It's certified for use in hazardous locations requiring explosion-proof fixtures where flammable gases, vapors, and combustible dusts are present — common in oil and gas rigs, petrochemical plants, and other hazardous corrosive facilities.\u003c\/p\u003e\n\u003cp\u003eBuilt-in 10kV surge protection enhances safety and working conditions, while a dimmable driver helps reduce light pollution and save on energy costs. A self-contained LED and driver compartment with external cooling fins ensures reliable heat dissipation from -40°F to 140°F, and a rugged copper-free aluminum body and frame provide superior corrosion resistance for long-lasting durability.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Construction:\u003c\/strong\u003e Built to withstand extreme temperatures, vibration, water, and dust. Copper-free aluminum body and frame for corrosion resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcellent Heat Dissipation:\u003c\/strong\u003e Safe and reliable heat transfer offering a T-rating of T4A (CID2, CIID2), performing from -40°F to +140°F.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3 Optic Options:\u003c\/strong\u003e 25°\/60°\/120° available for different applications from spot to flood for optimal light distribution.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Specify the Block H2 Series\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e121,000-hour LED fixture life at 140°F guarantees long-term operation\u003c\/li\u003e\n\u003cli\u003e10kV built-in surge protection improves site safety\u003c\/li\u003e\n\u003cli\u003eDimmable driver lowers energy costs and light pollution\u003c\/li\u003e\n\u003cli\u003e10-year warranty with factory replacement\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Red Sky Lighting","offers":[{"title":"Default Title","offer_id":54355074318649,"sku":"BLK2 H2","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0991\/4040\/3513\/files\/01-Cover-BLK2-H2_BAA.jpg?v=1787358201"},{"product_id":"block-max-series","title":"BLOCK MAX Series","description":"\u003ch2\u003eHigh-Efficacy Explosion-Proof Flood \u0026amp; High Bay Lighting\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eWhen a project needs maximum brightness per watt without compromising hazardous-area certification, the Block Max Series delivers up to 180 lm\/W in a lightweight, compact footprint.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe Block Max Series is a line of high-performance LED lighting fixtures designed for use in harsh and hazardous environments. These robust lights offer a wide lumen range from 7,000 to 30,000 lumens with an efficiency of up to 180 lumens per watt, ensuring both brightness and energy savings, with easy installation and multiple beam angles and color temperatures to suit various applications.\u003c\/p\u003e\n\u003cp\u003eSafety is a key focus of the Block Max Series, with high protection ratings such as Ex eb mb IIC T5 Gb for gas, Ex tb IIIC T85℃ Db for dust, and IP66\/67 for dust-tight and waterproof capabilities. The series is also ATEX and IECEx certified, meeting international standards for use in hazardous locations.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Installation:\u003c\/strong\u003e Simplified wiring design with ample space for connections.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEmergency Functionality:\u003c\/strong\u003e Available at 7L and 15L models, providing 5,000 Lm for 90 minutes or 2,500 Lm for 180 minutes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact and Lightweight Design:\u003c\/strong\u003e Easy to handle and install.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Efficiency:\u003c\/strong\u003e Delivers up to 180 Lm\/W for exceptional energy savings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Range Selection:\u003c\/strong\u003e Available in lumen outputs from 7,000 to 30,000 Lm.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Specify the Block Max Series\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eUp to 180 lm\/W — among the highest efficacy in the hazardous-area category\u003c\/li\u003e\n\u003cli\u003eATEX and IECEx certified for international hazardous-location projects\u003c\/li\u003e\n\u003cli\u003eOptional 90- or 180-minute emergency battery backup on select models\u003c\/li\u003e\n\u003cli\u003eIP66\/67-rated for dust-tight, waterproof performance\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Red Sky Lighting","offers":[{"title":"Default Title","offer_id":54355075072313,"sku":"BLX","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0991\/4040\/3513\/files\/01-Cover-1_b0435ba1-2ba3-4756-a8b5-b2911cd43fff.jpg?v=1787358233"},{"product_id":"block-mini-h1-series","title":"BLOCK MINI H1 Series","description":"\u003ch2\u003eCompact Explosion-Proof LED for Class I Division 1 Tight Spaces\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eConfined hazardous areas rated for the most stringent Division 1 classification need a fixture that's both compact and factory-sealed — the Block Mini Series H1 was designed for exactly that.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eBlock Mini Series H1 (BLM2 H1) is a compact, explosion-proof LED luminaire engineered for hazardous location applications requiring high reliability, long service life, and simplified installation. It's certified for Class I Division 1 and Division 2 environments, as well as Zone 1 and Zone 2 locations, where flammable gases, vapors, or combustible dusts may be present.\u003c\/p\u003e\n\u003cp\u003eDesigned with a factory-sealed housing and advanced thermal management system, the BLM2 H1 operates safely in high ambient temperatures up to 65°C (149°F) while maintaining consistent light output and extended lifetime. Its compact and lightweight construction makes it well suited for low mounting heights and space-limited installations.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact, Factory-Sealed Design:\u003c\/strong\u003e Compact and lightweight construction with factory-sealed housing eliminates the need for external sealing fittings in Groups B, C, and D, simplifying installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Efficiency with Long Service Life:\u003c\/strong\u003e Delivers up to 8,100 lumens with efficacy up to 140 lm\/W. Advanced thermal management provides L70 rated life up to 219,000 hours.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpanded Mounting Options:\u003c\/strong\u003e Now available in Pendant, Yoke, Pole, Ceiling, Stanchion, and Wall configurations for easier retrofit and new installations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Specify the Block Mini Series H1\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCertified for the most stringent Class I Division 1 hazardous locations\u003c\/li\u003e\n\u003cli\u003eFactory-sealed housing eliminates external sealing fittings for Groups B, C, D\u003c\/li\u003e\n\u003cli\u003eL70 life up to 219,000 hours — among the longest in its class\u003c\/li\u003e\n\u003cli\u003eCompact footprint fits low mounting heights and space-constrained sites\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Red Sky Lighting","offers":[{"title":"Default Title","offer_id":54355075793209,"sku":"BLM2 H1","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0991\/4040\/3513\/files\/01-Cover-BLK-H1.jpg?v=1787358255"},{"product_id":"block-mini-h2-series","title":"BLOCK MINI H2 Series","description":"\u003ch2\u003eCompact C1D2 LED with Multiple Mounting Options\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eSpace-constrained Division 2 areas call for a fixture that installs anywhere and keeps running — the Block Mini Series H2 combines a compact footprint with factory-sealed reliability.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe Block Mini Series H2 is a compact and powerful LED luminaire certified for hazardous locations up to Class 1 Division 2 — areas with the potential for ignitable concentrations of flammable gases, vapors, or liquids under abnormal operating conditions.\u003c\/p\u003e\n\u003cp\u003eThe factory-sealed Block Mini H2 eliminates the need for external sealing fittings, simplifying installation and maintenance. Its exceptional thermal management system offers a T6 temperature rating and is engineered to perform reliably in high ambient temperatures up to 149°F, providing an impressive L70 rating of over 219,000 hours. Compact and lightweight, it's easy to handle and install, making it ideal for applications with limited space and low mounting heights.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal Management:\u003c\/strong\u003e Safe and reliable heat transfer, offering a T-rating of T6 (CIID1). Heat sink designed to perform in high ambient temperatures up to +149°F. L70 \u0026gt;219,000 hours@149°F.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact and Light Weight Design:\u003c\/strong\u003e For easy handling, especially when access to limited space with low mounting heights.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5 Mounting Options:\u003c\/strong\u003e Pendant, Yoke, Ceiling, Stanchion, and Wall.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Specify the Block Mini Series H2\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFactory-sealed design removes external sealing fitting requirements\u003c\/li\u003e\n\u003cli\u003eClear, diffused, and Type 2\/3 lens choices customize light distribution\u003c\/li\u003e\n\u003cli\u003eL70 life over 219,000 hours minimizes lifecycle maintenance cost\u003c\/li\u003e\n\u003cli\u003e10-year warranty backing\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Red Sky Lighting","offers":[{"title":"Default Title","offer_id":54355076317497,"sku":"BLM H2","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0991\/4040\/3513\/files\/01-BLM-H2-Cover.jpg?v=1787358268"},{"product_id":"linear-series","title":"LINEAR Series","description":"\u003ch2\u003eMaintenance-Free Linear LED Lighting for Class I Division 2 Areas\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eRetrofitting fluorescent linear fixtures in a hazardous area shouldn't mean sacrificing efficacy — the Linear Series delivers 147,000+ hours of reliable output at up to 150 lm\/W.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eWith its rugged, copper-free aluminum construction, the Linear Series is rated for hazardous environments up to Class I Division 2, protecting against combustible dust, gases, and vapors. Its maintenance-free design ensures over 147,000 hours of reliable light output at temperatures up to 149°F (65°C), while operating reliably as low as -40°F (-40°C).\u003c\/p\u003e\n\u003cp\u003eA dimmable 1-10V driver and luminous efficacy up to 150 lumens per watt help maximize energy savings without compromising illumination levels. A built-in wiring compartment with three 3\/4\" NPT conduit entries and WAGO connectors simplifies installation, and an optional bracket allows for simple retrofits of existing fixtures.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy and Through Wiring:\u003c\/strong\u003e Built-in wiring compartment with three NPT 3\/4\" entries and WAGO 221 lever connectors for easy wiring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple Mounting Options:\u003c\/strong\u003e Pendant, Yoke, Chain, Pole, and Stanchion.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRugged Construction:\u003c\/strong\u003e Built to withstand extreme temperatures, vibration, water, and dust. Copper-free aluminum body and frame for corrosion resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong Fixture Life:\u003c\/strong\u003e L70 \u0026gt;147,000 hours@149°F. 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