An explosion proof mobile phone for Motiva means one site: the Port Arthur refinery on the Sabine-Neches waterway in Jefferson County, Texas, which Motiva describes as the largest refinery in North America. This page is for the safety, operations and telecoms teams at Port Arthur and for the turnaround contractors who work there, and it sets out what a Zone 1 mobile phone has to do in that fence line. The IS-04Z1 is designed around intrinsic safety rather than a flameproof enclosure.
Launching Q4 2026 · certification programme in progress
Motiva is owned by Saudi Aramco, and Port Arthur is its refinery in the United States. Reported crude throughput after the expansions of the last decade is well above half a million barrels a day, though figures differ between sources and this page does not quote one. The site sits within the Beaumont and Port Arthur refining cluster on the Sabine, near other large refineries and the crude and product docks that serve them. A refinery of that scale is a grid of process units, tank farms, pipe racks and loading docks, where a walk from the control room to a unit can mean a vehicle journey and several permit boundaries. Most of the footprint is classified. Whether it is described in Class and Division terms or in zones depends on the document set for each unit, so the first thing to ask for is the area classification drawing for the units your people will visit.
The scale of the site is what shapes the requirements: distance, headcount and a long list of permits.
Moving between units can take longer than the task itself. A handset that covers voice, camera, checklists and navigation saves the return trip to the safe area, and four-constellation GNSS helps a crew find a numbered tank or manifold in an unfamiliar part of the site.
Port Arthur is not only a gas-area site. The IS-04Z1 design target includes Zone 21 dust, so the same device is aimed at gas areas and at areas where combustible dust can be present.
A major outage fills the site with firms who have never used the operator’s device set. Android 16 with Android Enterprise lets the operator enrol a unit, limit it to approved applications and remove it from service when the contract ends.
After a Gulf storm, site networks and public coverage can both be degraded. IP68 construction and a replaceable plan for charging in the safe area matter more than a long feature list.
We have not verified a Motiva-specific vendor registration programme, so the list below is generic: it is what a refinery owner of this size is likely to want to see.
The mark must cover the class, division and group of the area. OSHA places the duty on the employer to use approved equipment, so the plant’s own electrical authority will read the label.
Decide whether contractors bring their own handsets, which is hard to police in a refinery, or are issued managed units for the job.
Agree charging locations, spare policy and how units are returned or wiped after a turnaround.
No. SAMS has no order, pilot or agreement with Motiva. The IS-04Z1 is pre-launch and certification is in progress; this page describes what Port Arthur’s environment would require of any handset.
Texas plants are mostly drawn in Class and Division terms under the National Electrical Code, but the code also permits the zone system. The device is being certified to NEC 500, IECEx and ATEX so documents exist in each language.
Hydrogen is the most demanding, at group IIC. If your handset is only needed in crude, tank farm and loading areas, a lower group may be enough; the area classification, not the vendor, decides that.
Tell us the site, the zone and gas group, and roughly how many handsets. The SAMS team replies by email with the datasheet and the certification schedule for United States. The IS-04Z1 is pre-launch and certification is in progress, so there is no list price yet; indicative pricing is issued in writing against a stated quantity and site.
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule for your market.
