South Africa: industry on the ground
Secunda CTL, owned by Sasol, is the world's largest coal liquefaction plant, with capacity of 160,000 barrels a day from units built in 1980 and 1984, so synthetic fuel gas and liquids handling is extensive.
A Zone 1 / Zone 21 smartphone for crews at the Secunda and Sasolburg complexes, the Natref and Cape Town refineries, Mossel Bay, the fuel terminals and the surface plants of South African mining. If you are specifying an ATEX and IECEx mobile phone for South Africa, 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 South Africa: 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. Operator approval runs on its own timeline. Certification status. Place facts reviewed October 2026.
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Marking | II 2 G Ex ib IIC T4 on the rating plate | Design target; not yet marked |
| EU-type examination certificate | Notified body number and certificate ID | In progress with TÜV; not issued |
| IECEx certificate of conformity | Number listed on the IECEx online register | In progress; not issued |
| Where it applies | South Africa: Secunda, Mpumalanga, Sasolburg, Free State, Milnerton, Cape Town | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in South Africa. 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 South Africa market guide.
Secunda CTL, owned by Sasol, is the world's largest coal liquefaction plant, with capacity of 160,000 barrels a day from units built in 1980 and 1984, so synthetic fuel gas and liquids handling is extensive.
Mining areas range from the Witwatersrand gold fields to Limpopo platinum mines such as Two Rivers at Steelpoort, so remote sites and deep underground workings are both common.
Electrical safety for some products is handled through SABS certificates of conformity and an NRCS letter of authority, which are separate from ICASA's radio approval.
The 1886 discovery on the Witwatersrand started the gold rush that built Johannesburg's mining industry, and the country is still fifth in world gold production by one account.
ATEX is the European legal framework for equipment used in explosive atmospheres (Directive 2014/34/EU). IECEx is the international certification scheme built on the IEC 60079 standards. Buyers outside Europe often ask for both: an IECEx certificate is the technical evidence most national regimes build on, while ATEX is the legal route into the European market.
For the IS-04Z1 both routes are in progress with TÜV in Germany and neither certificate has been issued. The marking target is II 2 G Ex ib IIC T4: equipment Group II (surface industry), Category 2 (Zone 1 gas), protection concept ib (intrinsic safety), gas group IIC and temperature class T4.
In South Africa. A South African procurement or HSE reviewer at Sasol, Natref or Astron Energy would expect IECEx evidence first, because the sheet places IECEx first and a local Ex certificate after it under SANS 60079. A dual ATEX and IECEx route also helps international contractors and EPCs working on the large process sites. Nothing is issued yet.
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.
Not yet. Both routes are in progress with TÜV in Germany and no certificate has been issued. Any listing that says otherwise is wrong.
The market guide for South Africa covers Secunda, Mpumalanga, Sasolburg, Free State, Milnerton, Cape Town, Mossel Bay, Western Cape, 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.
Underground mines typically use Group I classification, with methane and coal-dust risks, while surface plants use Group II and III. SANS standards such as SANS 1515 cover mine gas-measuring equipment. Ask the mine or plant engineer which group and protection level the area drawing specifies before ordering.
Yes. The National Code of Practice for Electrical Machinery in Hazardous Locations sits under the Occupational Health and Safety Act 1993 and refers to SANS standards. Mines also have their own regulations and standards, so confirm which rules apply with the site's engineering and compliance team.
No. Underground mining is equipment Group I, which is outside the scope of this device. The IS-04Z1 targets surface areas such as coal handling plants and process units using Zone 1 and Zone 21. Confirm the area and equipment group with the mine's safety officer.
Other guides for South Africa, other places in South Africa, and the pages behind them.
Tell us what you need to equip and where. The SAMS team answers by email with the datasheet and where each certification route stands.
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule.