Explosion Proof Wall Mounted Telephone JWBT835P
The JWBT835P IP SIP Explosion-Proof Telephone is a next-gen industrial terminal for smart factories and hazardous areas. Featuring SIP 2.0, PoE, an IP66 stainless steel housing, and ATEX/IECEx certifications, it seamlessly integrates with VoIP, dispatch, and smart park platforms. Essential for modern petrochemical, mining, and EPC projects.
Heavy-Duty Explosion-Proof Design (Zone 1 / Zone 2)
Built for explosion proof wall mounted telephone applications, this unit features an Ex-certified explosion-proof structure for hazardous areas with explosive gas atmospheres in Zone 1 and Zone 2. It also supports multiple explosion-proof cable glands, making multi-loop wiring and system interconnection clean and reliable for industrial deployments.
Corrosion-Resistant Stainless Steel Enclosure (304 / 316 Optional)
The enclosure is available in 304 or 316 stainless steel to match different site conditions. With strong resistance to salt spray and rust, it performs well in offshore platforms, coastal facilities, and chemical environments where high humidity and salt fog can quickly damage standard housings.
Backlit Metal Keypad with Programmable Speed Dial
A rugged backlit metal keypad ensures clear operation in low-light areas such as plants, tunnels, and outdoor installations at night. Three programmable shortcut keys (D1/D2/D3) enable one-touch calling to a control room or dispatch center, while volume up/down keys make it easy to adjust audio on site.
Impact-Resistant Handset and Anti-Pull Coiled Cord
The handset is designed for tough industrial use, featuring an anti-impact build and an oil-resistant rubber surface for a secure grip. A tensile-resistant coiled spiral cord helps prevent damage from frequent handling, pulling, and harsh working conditions.
Two Versions Available: Analog or SIP IP
Choose the version that best fits your communication system and project stage.
- Analog Version: Designed for traditional PBX/dispatch systems, ideal for legacy plant upgrades and retrofit projects.
- SIP IP Version: Supports SIP 2.0 and PoE power, making it a strong match for modern industrial networks and new-build sites.
Simple Wall-Mount Installation + OEM Customization
With a complete mounting plate, the phone installs directly on the wall without an additional cabinet, helping reduce installation time, cost, and space requirements. OEM customization is available, including custom logos and custom shortcut-key functions to fit your site workflow.
| Item | Technical data |
| Explosion-Proof Mark | Ex d ib IIC T6 Gb/EX tD A21 IP66 T80℃ |
| Voltage | DC 12V / PoE |
| Standby Work Current | ≤0.2A |
| Frequency Response | 250~3000 Hz |
| Amplified Output Power | 10~25W |
| Ringer Volume | 110dB(A) at 1m distance |
| Corrosion Grade | WF2 |
| Ambient Temperature | -40~+60℃ |
| Atmospheric Pressure | 80~110KPa |
| Relative Humidity | ≤95% |
| Lead Hole | 3-G3/4” |
| Installation | Wall-mounted |

Each explosion-proof telephone is shipped in durable, protective packaging designed for secure transport and storage. The packaging features impact-resistant materials and clear labeling for easy handling, with OEM and custom packaging options available.

This explosion-proof telephone is engineered for dependable operation in high-risk and demanding industrial settings. It is certified for use in the following hazardous environments:
- Oil refineries, petrochemical plants, LNG plants
- Offshore drilling platforms, coastal chemical terminals
- Mine tunnels, coal preparation plants
- Pharmaceutical factories with flammable solvent
- Hazardous‑area power plants, gas processing stations
- EPC industrial construction projects & system integration solutions

Joiwo provides integrated communication system solutions for hazardous and demanding industrial environments. From explosion-proof PA telephones and field communication terminals to PBX/IP-PBX, network systems, PA systems, and control centers, we deliver reliable end-to-end connectivity. Our solutions enable clear, secure, and efficient communication across Oil & Gas, Chemical, Offshore, and Mining applications.
Joiwo — Connecting the Field to the Control Center.




