Hazardous Area Zone Classification Reference Card
Free download · 85 × 54mm (credit card size)
Hazardous area classification is critical safety knowledge for any electrical engineer working in oil & gas, mining, chemical plants, or grain handling facilities. This pocket card summarises the zone system on one side and the equipment selection rules on the other. The front defines Zone 0/1/2 (gas, vapour) per IEC 60079-10-1 with NEC Division 1/2 cross-reference, Zone 20/21/22 (dust) per IEC 60079-10-2, equipment category selection (Cat 1 = Zone 0, Cat 2 = Zone 1, Cat 3 = Zone 2), and gas group table (IIA propane, IIB ethylene, IIC hydrogen). The reverse covers temperature classes T1(450°C) through T6(85°C) with the 80% AIT rule, EPL Ga/Gb/Gc zone mapping, and protection type symbols (Ex d, Ex e, Ex ia). QR links to ECalPro resources.
What's Included
How to Print
- ●Recommended paper: 250–300gsm cardstock
- ●Print double-sided, flip on short edge
- ●Cut along crop marks with a paper trimmer
- ●Laminate with 80–125 micron pouches for durability
- ●Fits in wallet, toolbox, or pocket
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Frequently Asked Questions
What paper should I print this on?
Print on 250–300gsm cardstock for durability. Use duplex (double-sided) printing and cut along the crop marks. Laminate with 80–125 micron pouches for long-term site use.
Can I distribute this to my team?
Yes. All ECalPro reference cards are free to download, print, and distribute within your organization. Keep the ECalPro branding and QR code intact.
What standard does this reference?
This card references IEC 60079-10-1 (gas/vapour zone classification), IEC 60079-10-2 (dust zone classification), and NEC Articles 500–505 (hazardous locations).
How often is this updated?
Updated when IEC 60079 or NEC hazardous location articles are revised. Zone definitions are stable but equipment standards evolve.