Poland: infrastructure
Bełchatów Power Station in the Łódź region supplies almost 20% of Poland's energy and is the largest brown coal power plant in the EU, a major example of a large dust-hazard site.
The IS-04Z1 is an intrinsically safe Android handset designed for Zone 1 and Zone 21, built for the refinery, fertiliser and gas terminal work where Polish teams actually meet an explosive atmosphere. This page explains what to look for in an Ex-proof cell phone for Poland, and where the IS-04Z1 stands against that list today.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Poland: pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
For the record, no certificate exists for the IS-04Z1 today. The programme is under way ahead of a Q4 2026 launch. Operator approval runs on its own timeline. Certification status. Place facts reviewed October 2026.
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Ex marking | Group, category, protection concept, gas group, temperature class | II 2 G Ex ib IIC T4 (target) |
| Gas group | IIA, IIB or IIC matched to the area drawing | IIC (target) |
| Temperature class | T-class below the ignition temperature of the gas | T4, 135 °C (target) |
| Where it applies | Poland: Płock, Gdańsk, Włocławek | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Poland. 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 Poland market guide.
Bełchatów Power Station in the Łódź region supplies almost 20% of Poland's energy and is the largest brown coal power plant in the EU, a major example of a large dust-hazard site.
Solar energy expanded by 51.39% in 2023 and 26.61% in 2024 while hard coal fell 16.96% in 2024, and nuclear power is being introduced, so the types of site are changing.
The Płock refinery and petrochemical complex is the largest oil refinery in Poland, and Orlen's headquarters are in the same city, with servicing and construction firms clustered around the plant.
Coal use splits into 75.6% for electricity and heat, 14.5% for industry and 9.9% for buildings, so industrial coal consumers beyond power plants also have dust and gas hazards.
“Ex-proof” is shorthand for equipment carrying an explosion-protection marking (the Ex mark) that matches the area it enters. The marking states the protection concept, gas or dust group and temperature class, and it must be backed by a certificate issued by a recognised body, so a phone described as Ex-proof should come with a certificate number you can check.
The IS-04Z1 is designed to carry the marking II 2 G Ex ib IIC T4. That is a target: certification is in progress, no certificate has been issued, and SAMS will publish the certificate numbers when they exist.
In Poland. A marking check in Poland compares II 2 G Ex ib IIC T4 with the plant's classification. The gas marking target covers refineries and gas terminals, while Zone 21 dust protection belongs to the same programme. On a fertiliser site, the prilling tower, bagging hall and ammonia area can sit close together, so each area's zone must be confirmed.
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
No. Nothing can be bought or taken into a classified area today: certification is in progress and launch is planned for Q4 2026. What is available now is the datasheet, the written certification schedule and evaluation units for safe-area use.
There is no list price yet. SAMS gives indicative pre-launch pricing in writing, against a stated quantity and site, and does not commit to a lead time before certification completes.
The marking target is II 2 G Ex ib IIC T4. It becomes a marking only when the certificate is issued; until then it is a design target.
The market guide for Poland covers Płock, Gdańsk, Włocławek, Puławy, 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.
Polish is the working language and ATEX instructions are typically expected in the language of the destination country. A Polish-language instruction sheet with certificate pack usually speeds up site acceptance. Ask the operator whether English documents are also accepted for contractors.
Poland is an EU member, so ATEX Directive 2014/34/EU applies to equipment and Directive 1999/92/EC to workplace zoning. Zone 1 and Zone 2 devices should carry CE and Ex markings with instructions in Polish. Operators and mines usually add their own approval rules.
The gas marking target is II 2 G Ex ib IIC T4, and Zone 21 dust protection belongs to the same programme, so one device is designed to cover both. Certification is in progress, so confirm the final marking and the plant's zone drawing with the operator.
Related guides for Poland and for Poland.
Send the site, zone and gas group and roughly how many handsets. We reply by email with the datasheet and the certification schedule.
Send the zone and gas group of your site and we will reply with the datasheet and schedule.