Refinery scale
HPCL's Mumbai refinery covers 321 acres and dates from 1954. BPCL's Mumbai refinery is one of India's oldest operating refineries, with expansion planned under its Project Aspire.
Mumbai India · explosion proof
Explosion-Proof Smartphone in Mumbai India
Mumbai has two large refineries at Mahul and Trombay, BPCL's at about 13 million tonnes a year and HPCL's at 9.5 million tonnes a year. The port is the terminal of the Western Dedicated Freight Corridor, which is expected to raise rail capacity from 27 to 100 trains a day. If you are specifying an explosion proof smartphone for Mumbai, Maharashtra, 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 topicexplosion proof
DeviceSmartphone
RouteSpecification
WhereMumbai India
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Mumbai, Maharashtra: 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. A buyer's engineering review is separate from the certificate. Certification status. Place facts reviewed October 2026.
At a glance · explosion proof
Checklist: explosion proof smartphone for Mumbai, Maharashtra
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Protection concept | Flameproof (Ex d) or intrinsic safety (Ex i) | Intrinsic safety, level ib |
| Zone suitability | Zone 1 gas and Zone 21 dust | Design target for Zone 1 and 21 |
| Certificate | Number, issuing body and schedule of conditions | In progress; not issued |
| Where it applies | Mumbai, Maharashtra: Refinery process units, Petroleum storage terminals, Marine oil handling | Classified by the site operator |
Product · Mumbai India
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 Mumbai India. 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 · Mumbai, Maharashtra
Mumbai, Maharashtra: where the IS-04Z1 would work
Who operates there and which kinds of classified area a handset would meet, from the SAMS site research.
Operators and companies on site
- Bharat Petroleum
- Hindustan Petroleum
Classified areas to expect
- Refinery process units
- Petroleum storage terminals
- Marine oil handling
- Chemical plants
Local conditions · Mumbai, Maharashtra
Site conditions at Mumbai, Maharashtra: what wears and what limits equipment
Monsoon climate
Mumbai has a tropical wet and dry climate with intense rain from June to September, so outdoor devices need good water and corrosion protection.
Field notes · Mumbai, Maharashtra
More about Mumbai, Maharashtra that matters for portable equipment
Mumbai, Maharashtra: geography and layout
Mumbai has a deep natural harbour on the Konkan coast, a population of almost 12.5 million in 2011 and a metropolitan region of over 20 million.
Mumbai, Maharashtra: rules and approvals
The Telecommunication Engineering Centre has a regional centre in Mumbai that tests telecom products and issues service test certificates.
Mumbai, Maharashtra: climate and equipment wear
The climate is tropical wet and dry, with a nearly rainless stretch from October to May and a south-west monsoon from June to September that peaks in July.
Mumbai, Maharashtra: climate and equipment wear
Mumbai is prone to flooding during monsoons, and occasionally experiences tropical cyclones, so site access and logistics can be disrupted.
The term · explosion proof
What “explosion proof” means for a smartphone
“Explosion proof” is the phrase most buyers use for equipment that may be taken into a classified hazardous area. Strictly, it covers several protection concepts: a flameproof enclosure (Ex d) contains an internal explosion, while intrinsic safety (Ex i) limits electrical energy so that an ignition cannot start. Phones are normally intrinsically safe, because a flameproof handset would be too heavy to carry all shift.
The IS-04Z1 uses intrinsic safety, with a marking target of Ex ib IIC T4, and is designed for Zone 1 and Zone 21. It is pre-launch, certification is in progress and no certificate has been issued.
In Mumbai, Maharashtra. Older refineries such as those in Mumbai combine decades of installed equipment with newer units. In that setting, explosion-proof can mean different protection concepts on different plant. A handheld used on rounds depends on intrinsic safety, not on a flameproof enclosure like fixed motors.
The route · specification
Specifying an explosion proof smartphone for Mumbai India
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 · Mumbai India
Frequently asked questions
Can we buy an explosion proof smartphone in Mumbai India 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 explosion proof smartphone in Mumbai India 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.
Is the IS-04Z1 explosion proof or intrinsically safe?
It is intrinsically safe (marking target Ex ib IIC T4), which is the usual way to make a phone for hazardous areas. It is not a flameproof (Ex d) design, and certification is still in progress.
Which areas at Mumbai, Maharashtra would use it?
Likely candidates are refinery process units, petroleum storage terminals, marine oil handling, chemical plants. 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.
How do I ship equipment to Mumbai?
Jawaharlal Nehru Port is the main container port for the region, with 30 container freight stations and links to inland depots. Use an experienced freight forwarder and confirm customs documents in advance.
How does the Mumbai monsoon affect equipment and logistics?
Rain is heavy from June to September, peaking in July, and monsoon floods can disrupt roads and ports. Plan deliveries and site visits outside the peak monsoon where possible, and transport devices in waterproof cases.
What should be planned for the monsoon at Mumbai sites?
Intense rain from June to September makes water and corrosion protection important for outdoor work. A sealed IP68 design helps, but users should still check seals and dry the device. Ask the operator how outdoor handheld use is managed during heavy rain.
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Certification statusWhat is in progress
Enquiry · Mumbai, Maharashtra
Ask about the IS-04Z1 for Mumbai, Maharashtra, India
Tell us what you need to equip and where. The SAMS team answers by email with the datasheet and where each certification route stands.
Enquiry · Mumbai, Maharashtra
Launching Q4 2026
Planning for Mumbai India?
Name the site and the operator and we will send what is available before launch.