Underground access
Equipment taken underground generally has to suit the mine's hazard classification and may need approval by the mine's own electrical or safety department.
A regional grouping rather than one site: Canada is a major producer of nickel, copper, potash and uranium, and the Sudbury Basin in Ontario is one of the world's largest nickel and copper ore suppliers. Where flammable gas exceeds 0.8 percent near electrical equipment or diesel engines the area must be tested at least every eight hours, and a methanometer alarm is required at longwall faces where gas may reach 1.25 percent. If you are specifying an explosion proof mobile phone for Canadian mining regions, this page covers the markings, the approvals and the current certification status of the IS-04Z1.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Canadian mining regions: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
Current position: certification in progress, nothing issued, launch targeted for Q4 2026. A buyer's engineering review is separate from the certificate. Certification status. Place facts reviewed October 2026.
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Protection concept | Flameproof (Ex d) or intrinsic safety (Ex i) | Intrinsic safety, level ib |
| Zone suitability | Zone 1 gas and Zone 21 dust | Design target for Zone 1 and 21 |
| Certificate | Number, issuing body and schedule of conditions | In progress; not issued |
| Where it applies | Canadian mining regions: Underground mine workings, Ore processing plants, Fuel storage | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Canada Mining Operations. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
Who operates there and which kinds of classified area a handset would meet, from the SAMS site research.
Equipment taken underground generally has to suit the mine's hazard classification and may need approval by the mine's own electrical or safety department.
Winters in much of mining Canada are cold enough that battery performance, glove use on touchscreens and condensation are practical concerns.
Underground diesel engines must have exhaust sampled at least monthly, and an engine is removed from service if exhaust carbon monoxide exceeds 2,000 ppm, a reminder of how closely air quality is controlled in coal mines.
Mining contributed about 7.9 percent of Canada's GDP in 2021, roughly 156.5 billion Canadian dollars, split across extraction, services and manufacturing.
Industrial-scale mining began in the 18th century, with an iron mine at Forges du Saint-Maurice (1738 to 1883) and copper at Bruce Mines, Ontario from 1848, so many sites are old and complex.
Canada was the world's largest potash producer in 2019 and a top-ten producer of gold, nickel, platinum, iron ore, titanium, niobium, sulphur, molybdenum and cobalt.
“Explosion proof” is the phrase most buyers use for equipment that may be taken into a classified hazardous area. Strictly, it covers several protection concepts: a flameproof enclosure (Ex d) contains an internal explosion, while intrinsic safety (Ex i) limits electrical energy so that an ignition cannot start. Phones are normally intrinsically safe, because a flameproof handset would be too heavy to carry all shift.
The IS-04Z1 uses intrinsic safety, with a marking target of Ex ib IIC T4, and is designed for Zone 1 and Zone 21. It is pre-launch, certification is in progress and no certificate has been issued.
In Canadian mining regions. Underground, explosion-proof is a loose phrase. Flameproof Ex d enclosures suit fixed electrical gear, while a phone depends on intrinsic safety. Fuel storage and explosives stores are controlled areas too. Which protection concept is acceptable underground depends on the mine's hazard classification and its electrical or safety department.
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
Not yet. The IS-04Z1 is pre-launch and its certification is still in progress ahead of a Q4 2026 launch. No unit goes into a classified area before the certificate covering it exists. The datasheet, the certification schedule and safe-area evaluation units are available now.
No price is published. While certification is in progress there is no list price and no committed lead time, and a supplier quoting a firm figure for an uncertified Ex handset is promising something it cannot stand behind. Indicative pre-launch pricing is issued in writing against a stated quantity and site.
It is intrinsically safe (marking target Ex ib IIC T4), which is the usual way to make a phone for hazardous areas. It is not a flameproof (Ex d) design, and certification is still in progress.
Likely candidates are underground mine workings, ore processing plants, fuel storage, explosives storage. Which areas are classified, and to what zone, is set by the site operator's own area classification drawings.
Not exactly. Explosion proof is a broad everyday term; intrinsic safety is one protection concept, which limits energy so ignition cannot occur. Flameproof (Ex d) is a different concept that contains an explosion. The IS-04Z1 is intrinsically safe by design.
Mining is mostly provincial, so each province enforces its own occupational health and safety rules; federal regulations such as the coal mining ones apply to federal jurisdictions. Confirm which authority and which Ex marking scheme the mine accepts.
Underground coal mines are the clearest case because methane is a flammable gas. Some hard-rock operations have fuel stores, explosives areas or battery charging bays that are classified, so confirm with the mine's hazard assessment which areas need certified devices.
Mine safety is regulated province by province. Ontario, for example, has Regulation 854 (Mines and Mining Plants) under the Occupational Health and Safety Act, with a part on electrical equipment. Other provinces have their own rules, and each mine may add requirements. Check the applicable provincial regulation and the operator's procedure.
Related guides for Canada Mining Operations and for Canada.
Send the site, zone and gas group and roughly how many handsets. We reply by email with the datasheet and the certification schedule.
Name the site and the operator and we will send what is available before launch.