Climate
Busan has a humid subtropical climate and is among the most typhoon-prone Korean cities.
Busan · IECEx
IECEx Smartphone in Busan
Busan has South Korea's busiest port and the sixth busiest in the world, which handled 21.81 million container units in 2020, so equipment shipments can usually be arranged through frequent services. Shipbuilding and ship repair are key local industries, so Zone 1 conditions arise in yards, fuel and chemical storage and cargo handling. This page explains what to look for in an IECEx smartphone for Busan, and where the IS-04Z1 stands against that list today.
Pre-launch · certification in progress · Launching Q4 2026
Marking targetEx ib IIC T4Intrinsic safety, Zone 1 / 21 design target · certification in progress
AvailabilityQ4 2026via authorised distributors
Search topicIECEx
DeviceSmartphone
RouteSpecification
WhereBusan
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Busan: 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. A buyer's engineering review is separate from the certificate. Certification status. Place facts reviewed October 2026.
At a glance · IECEx
Checklist: IECEx smartphone for Busan
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Certificate of conformity | Number checkable on the IECEx online register | In progress; not issued |
| Standards edition | The IEC 60079 edition the certificate cites | Stated on the certificate when issued |
| Schedule of conditions | Limits of use, batteries and accessories | Published with the certificate |
| Where it applies | Busan: Vessel tank spaces, Ship repair yards, Fuel and chemical storage | Classified by the site operator |
Product · Busan
The product behind this search: the SAMS IS-04Z1.
SAMS IS-04Z1
An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Busan. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
- IP68 sealed
- 4,000 mAh battery
- 50 MP camera
- Android 16
- Zone 1 / Zone 21 design target
The site · Busan
Working in Busan: operators and classified areas
The companies on site and the hazardous-area types a handset is likely to meet there.
Operators and companies on site
- HJ Shipbuilding & Construction
Classified areas to expect
- Vessel tank spaces
- Ship repair yards
- Fuel and chemical storage
- Port cargo handling
Local conditions · Busan
What Busan means for portable equipment
Port scale
Busan handled 24.4 million TEU in 2024 and is managed by the Busan Port Authority.
Field notes · Busan
More about Busan that matters for portable equipment
Busan: infrastructure
Busan Port Authority, set up in 2004, develops and manages the port, which handled a record 24.4 million TEU in 2024 and consists of the North Port, South Port, Gamcheon, Dadaepo and the automated New Port.
Busan: geography and layout
Busan has about 3.3 million residents, and its surrounding Southeastern Maritime Industrial Region, including Ulsan and South Gyeongsang, has around 8 million, making it a large industrial labour and supplier base.
Busan: climate and equipment wear
Busan has a mild humid subtropical climate influenced by the East Asian monsoon, with cool dry winters, rare temperature extremes and snow on only about four days a year.
Busan: background
The city's economy is about 76 percent services and 17 percent manufacturing, as the older manufacturing base has declined with the shift towards high-tech industry around Seoul.
The term · IECEx
What “IECEx” means for a smartphone
IECEx is the international scheme for certifying equipment used in explosive atmospheres. A certificate of conformity is issued by an accredited certification body against a specific edition of the IEC 60079 standards and carries a schedule of conditions of safe use. It is not a legal requirement in most countries on its own, but many national schemes accept it as the technical basis.
The IECEx certificate for the IS-04Z1 is in progress and has not been issued. The marking target is Ex ib IIC T4, the intrinsic safety concept for Zone 1 gas with the hardest gas group (IIC) and a 135 °C temperature class.
In Busan. Busan handles vessels from many flag states, so visiting owners, class surveyors and superintendents often arrive with IECEx paperwork in mind. A certificate of conformity with its schedule of conditions is what they would look for. The IS-04Z1 has neither document yet, because certification is still in progress.
The route · specification
Specifying an IECEx smartphone for Busan
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
Check on the paper
- Marking
- Equipment group, category, protection concept, gas group and temperature class, matched to the area drawing.
- Certificate and schedule
- A certificate number, issuing body and the schedule of conditions, not a brochure claim.
- Standards edition
- The IEC 60079 or national standard edition the certificate was issued against.
Check for the IS-04Z1
- Marking target
- II 2 G Ex ib IIC T4: a target, not yet a certificate.
- Certificate status
- IECEx, ATEX, UKEX and NEC 500 in progress; none issued.
- Operator approval
- Separate from the certificate and handled with the site operator.
Questions · Busan
Frequently asked questions
Can we buy an IECEx smartphone in Busan today?
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.
What does an IECEx smartphone in Busan cost?
SAMS has not published a price. Any figure you are offered for an uncertified Ex phone should be treated with caution; written indicative pricing is available for a defined quantity and site.
Does the IS-04Z1 hold an IECEx certificate?
No. The IECEx certificate is in progress and has not been issued. SAMS will publish the number when it exists.
Which areas at Busan would use it?
Likely candidates are vessel tank spaces, ship repair yards, fuel and chemical storage, port cargo handling. Which areas are classified, and to what zone, is set by the site operator's own area classification drawings.
Is intrinsically safe the same as explosion proof?
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.
Why is Busan useful for sourcing or shipping hazardous-area equipment into Korea?
It is the country's busiest port, with frequent container services and a large forwarding and customs sector. Typical import checks include safety and radio approvals, so confirm requirements with your forwarder before shipping handheld devices.
Does Busan's climate cause problems for phones used outdoors?
It is relatively mild, with a humid subtropical climate, cool dry winters and a monsoon-influenced summer, so extremes are rare. Salt air near the port and summer humidity are the main concerns, so sealed connectors and regular cleaning are typical.
Are typhoons a concern for devices used at Busan quaysides?
Busan is among the most typhoon-prone Korean cities, so rain, wind and salt air are routine. The IS-04Z1 is designed to IP68 for dust and water, which helps, but that is not explosion protection. Check battery and charging plans for storm periods with the yard.
Related guides
Keep exploring
Other guides for Busan, other places in South Korea, and the pages behind them.
Intrinsically Safe Mobile Phone in BusanSame place, different guide
Hazardous Area Mobile Phone in BusanSame place, different guide
Industrial Mobile Phone in BusanSame place, different guide
Rugged Mobile Phone Distributor in BusanSame place, different guide
Ex-Proof Mobile Phone in BusanSame place, different guide
Explosion-Proof Mobile Phone Distributor in BusanSame place, different guide
ATEX and IECEx Mobile Phone Distributor in YeosuElsewhere in South Korea
ATEX and IECEx Mobile Phone Distributor in DaesanElsewhere in South Korea
ATEX and IECEx Mobile Phone Distributor in IncheonElsewhere in South Korea
ATEX and IECEx Mobile Phone Distributor in UlsanElsewhere in South Korea
South Korea market guideCertification route and regulators
All guides for South KoreaEvery route we cover
Certification statusWhat is in progress
Enquiry · Busan
Ask about the IS-04Z1 for Busan, South Korea
Send the site, zone and gas group and roughly how many handsets. We reply by email with the datasheet and the certification schedule.
Enquiry · Busan
Launching Q4 2026
Planning for Busan?
Send the zone and gas group of your site and we will reply with the datasheet and schedule.