Belgium: infrastructure
Nuclear power typically supplies 50-60% of domestic electricity, and in 2023 the lives of Doel 4 and Tihange 3 were extended to 2035, so long-running plant maintenance continues alongside the gas network.
The IS-04Z1 is an intrinsically safe Android handset designed for Zone 1 and Zone 21, aimed at the chemical belt along the Scheldt, the terminals at Zeebrugge and the platforms in Hainaut. If you are specifying an intrinsically safe cell phone for Belgium, 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 Belgium: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
Status: pre-launch. IECEx, ATEX, UKEX and NEC 500 certification is in progress and no certificate has been issued; launch is planned for Q4 2026. An operator's own vendor approval is a separate step. Certification status. Place facts reviewed October 2026.
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Level of protection | ia, ib or ic matched to the zone | ib, for Zone 1 |
| Entity parameters | Uo, Io and Po within the device limits | Published with the certificate |
| Accessories | Chargers and cases certified with the device | Defined at certification |
| Where it applies | Belgium: Antwerp right bank, Antwerp left bank, Zeebrugge | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Belgium. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
Operators and classified areas drawn from the SAMS Belgium market guide.
Nuclear power typically supplies 50-60% of domestic electricity, and in 2023 the lives of Doel 4 and Tihange 3 were extended to 2035, so long-running plant maintenance continues alongside the gas network.
Belgium imports raw materials and semi-finished goods and re-exports them after processing, with the Port of Antwerp the most notable of its ports, canals, railways and highways.
After Groningen gas supply fell, Belgium converted affected customers from low-calorific L-gas to high-calorific H-gas, a programme that began in 2018 and was completed by the end of summer 2024.
Under ATEX, equipment in use before July 2003 can remain in use indefinitely provided a risk assessment shows it is safe, which matters when mixing older and newer devices at long-established plants.
Intrinsic safety limits the electrical and thermal energy in a circuit so that neither a spark nor a hot surface can ignite a gas or dust atmosphere, even when a fault occurs. The ib level, used for Zone 1, tolerates one fault. It is the usual way to make a handheld device that a worker carries continuously through a hazardous area.
The IS-04Z1 is designed on this principle for Zone 1 and Zone 21 (marking target II 2 G Ex ib IIC T4). Intrinsic safety is a design basis, not a certificate: certification is in progress and none has been issued yet.
In Belgium. Turnaround shifts at Antwerp, Zeebrugge and Feluy involve long days inside plant fences with a work order application open and no charging point in a classified area. An intrinsically safe handheld is designed for those rounds, with a 4,000 mAh battery sized for a full stop shift, since walking out to charge costs more than the battery.
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
Not today. Until the certificates are issued the IS-04Z1 stays out of classified areas, and until launch there is nothing to purchase. You can ask for the datasheet and the certification schedule, or book a safe-area evaluation unit.
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.
The circuits are designed to limit energy so a spark or hot surface cannot ignite a gas or dust atmosphere, even with one fault (level ib, Zone 1). Certification of that design is in progress.
The market guide for Belgium covers Antwerp right bank, Antwerp left bank, Zeebrugge, Ghent canal zone, among others. Site-level pages are linked below.
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.
ATEX allows equipment in use before July 2003 to remain in service if a risk assessment shows it is safe. New purchases need to meet the current Directive. Keep the operator's risk assessment on file and ask whether it has additional internal rules for handheld devices.
The Antwerp port area and Flanders are the best-known concentration, with further industry along the Sillon industriel through Liège and Charleroi. Details of individual plants and zones are held by each operator, so request their layout drawings when planning.
Belgian rules expect information that reaches a worker to be in the language of the region where the work happens: Dutch in Flanders, French in Wallonia, and both in Brussels. The manual, safe-use instructions and declaration of conformity are planned in Dutch and French. Certification is still in progress. Check the wording with your site safety adviser.
Related guides for Belgium and for Belgium.
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.