Power plant
Mälarenergi's Västerås plant produces about 700 GWh of electricity and 1,800 GWh of heat a year; Block 6 (2014) burns waste and biofuels and Block 7 (2020) recycled wood.
Västerås is a city on Lake Mälaren, 110 km west of Stockholm, with an industrial base that includes ABB and the Mälarenergi combined heat and power plant. Handling of waste, wood and biomass fuels creates dust and gas areas where Zone 1 and Zone 21 work arises. Distribution partners for Västerås are being identified ahead of the Q4 2026 launch of the IS-04Z1.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. Västerås has no appointed SAMS distributor yet: the IS-04Z1 is pre-launch (certification in progress, no certificate issued, launch planned for Q4 2026), and distributor applications are open.
Where things stand: the IS-04Z1 has not launched, and none of its four certification routes has produced a certificate yet. 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 |
|---|---|---|
| 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 | Västerås: Waste, recycled-wood and biomass fuel handling (Zone 21), Boiler plant fuel and auxiliary systems, Fuel preparation and storage areas | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Västerås. 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.
Mälarenergi's Västerås plant produces about 700 GWh of electricity and 1,800 GWh of heat a year; Block 6 (2014) burns waste and biofuels and Block 7 (2020) recycled wood.
Humid continental climate with cold winters and warm summers, so equipment sees a wide temperature range.
Västerås has a humid continental climate bordering on oceanic, with cold winters, warm summers, a record low of minus 36.5 degrees Celsius in 1875 and a record high of 36.0 degrees in 1966.
Stockholm-Västerås Airport is 7.4 km from the centre with limited routes, and the larger Arlanda airport is 111 km away, with direct train links from Västerås Central to Stockholm.
Mälardalen University has about 16,000 students across Västerås and Eskilstuna, and industries such as Bombardier Transportation and GE Power also operate in the city.
Västerås lies on the shore of Lake Mälaren at the mouth of the Svartån river, 110 km west of Stockholm, with 127,799 city residents at the end of 2019.
“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 Västerås. A marking check in Västerås must separate gas from dust. Fuel preparation and storage areas for waste, recycled wood and biomass may be Zone 21 dust, whereas boiler fuel and auxiliary systems may be Zone 1 gas. The IS-04Z1 target marking, II 2 G Ex ib IIC T4, covers gas only, so dust areas need separate evaluation.
A distributor for Västerås would carry the IS-04Z1 after certification completes; the Q4 2026 launch is the planning date and no appointment has been made. SAMS reviews applicants one by one and prefers companies with their own Ex-competent technical and service staff, since certified devices must not be repaired outside approved channels.
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.
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.
Likely candidates are waste, recycled-wood and biomass fuel handling (zone 21), boiler plant fuel and auxiliary systems, fuel preparation and storage areas. Which areas are classified, and to what zone, is set by the site operator's own area classification drawings.
Apply through the distributor page with your company details and the territory you cover. SAMS reviews applications company by company and has not yet granted a territory for Västerås.
Winters are cold, with historical lows near minus 36 degrees, so battery life and screen response can suffer outdoors. Typically users keep spare batteries warm and check the device's rated operating temperature range against site conditions.
Direct trains run from Västerås Central to Stockholm, and Arlanda airport is 111 km away, so most visitors fly to Stockholm and continue by rail or road. Plan equipment delivery by road freight and confirm gate procedures with each site.
Its target marking, II 2 G Ex ib IIC T4, is a gas marking, and certification is in progress. Biomass and waste fuel handling may be Zone 21 dust, which needs a separate dust-rated marking. Check the operator's classification and ask the plant's HSE team what applies.
Related guides for Västerås and for Sweden.
Send the site, zone and gas group and roughly how many handsets. We reply by email with the datasheet and the certification schedule.
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule.