Shipyards
HJ Shipbuilding & Construction, formerly Hanjin Heavy Industries, is based at Yeongdo-gu in Busan.
Busan · hazardous area
Hazardous Area Smartphone in Busan
Busan is South Korea's busiest port and its second most populous city, at the mouth of the Nakdong River. 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. If you are specifying a hazardous area smartphone for Busan, this page covers the markings, the approvals and the current certification status of the IS-04Z1.
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 topichazardous area
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.
Where things stand: the IS-04Z1 has not launched, and none of its four certification routes has produced a certificate yet. Operator approval runs on its own timeline. Certification status. Place facts reviewed October 2026.
At a glance · hazardous area
Checklist: hazardous area smartphone for Busan
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Zone | 0, 1 or 2 for gas; 20, 21 or 22 for dust | Designed for Zone 1 and Zone 21 |
| Gas group | IIA, IIB or IIC | IIC (target) |
| Area drawing | The operator's own classification drawing | Decided by the site operator |
| 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
Conditions in Busan that affect handheld equipment
Climate
Busan has a humid subtropical climate and is among the most typhoon-prone Korean cities.
Field notes · Busan
More about Busan that matters for portable equipment
Busan: geography and layout
The densest areas lie in narrow valleys between the Nakdong and Suyeong rivers, with mountains separating most districts, so industrial and port zones are spread along the coast rather than in one block.
Busan: infrastructure
The container terminal has 43 berths, 20 at the North Port and 23 at Busan New Port, which is described as a gateway to the Eurasian continent and a key point on the Maritime Silk Road.
Busan: people and language
The foreigners' shopping street near the port and Busan Station caters to visiting ship crews, which shows the city is used to international seafarers and foreign contractors.
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.
The term · hazardous area
What “hazardous area” means for a smartphone
A hazardous area is a place where flammable gas, vapour or combustible dust may be present. Standards divide these into zones: Zones 0, 1 and 2 for gas and vapour, and Zones 20, 21 and 22 for dust. Zone 1 and Zone 21 are the tier where an explosive atmosphere is likely to occur in normal operation, which is where the IS-04Z1 is designed to work. Anything carried in must be marked for the zone, gas group and temperature class of the area.
No certificate has been issued for the IS-04Z1 yet, so it must not be taken into a classified area until the certificate covering it exists and the site operator has accepted it.
In Busan. The classified areas here are vessel tank spaces, ship repair yards, fuel and chemical storage and port cargo handling. Yards and terminals classify their own areas, not SAMS, and only one yard operator was verified for Busan. A specifier should ask each facility for its classification documents.
The route · specification
Specifying a hazardous area 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 a hazardous area smartphone in Busan today?
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.
What does a hazardous area smartphone in Busan cost?
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.
Which hazardous areas is the IS-04Z1 designed for?
Zone 1 and Zone 21 (gas and dust) with gas group IIC and temperature class T4, subject to certification. It must not be used in a classified area before its certificate is issued and the site has accepted it.
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.
IECEx Mobile Phone in BusanSame place, different guide
Explosion-Proof Mobile Phone Distributor in BusanSame place, different guide
ATEX and IECEx Mobile Phone Distributor in BusanSame place, different guide
Ex-Proof Mobile Phone in BusanSame place, different guide
Rugged Mobile Phone Distributor in BusanSame place, different guide
Intrinsically Safe Mobile Phone in BusanSame place, different guide
ATEX and IECEx Mobile Phone Distributor in DaesanElsewhere in South Korea
ATEX and IECEx Mobile Phone Distributor in YeosuElsewhere in South Korea
ATEX and IECEx Mobile Phone Distributor in PohangElsewhere 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?
Name the site and the operator and we will send what is available before launch.