The MTL 728+ intrinsic safety barrier is engineered to provide certified protection for instrumentation circuits located in hazardous areas. By limiting voltage, current, and power to safe levels, the 728+ ensures that field wiring cannot cause sparks, heat, or ignition in explosive atmospheres.

Compatible with a wide range of analog and digital signal types, the MTL 728+ supports safe interconnection between hazardous-area devices and control-room equipment. Its compact DIN-rail mount design simplifies panel integration while providing robust electrical isolation and signal conditioning performance.

This model is widely used in petrochemical plants, refineries, pharmaceutical production, offshore platforms, and industrial gas systems — anywhere precise measurement and intrinsic safety compliance are required.

✅ Key Features

• Manufacturer: MTL / Eaton Crouse-Hinds

• Model: 728+

• Function: Intrinsic safety barrier / IS isolator

• Mounting: DIN-rail

• Protection: Limits field energy to prevent ignition

• Interface Type: Analog/digital signal compatibility

• Application: Hazardous-area instrumentation wiring

(Note: performance values vary by loop type and certification — barrier selection depends on device & control voltage requirements.)

🧪 Typical Applications

• Hazardous-area transmitters and switches

• Temperature, pressure, and level instruments

• Valve position feedback

• Fire & gas detection loops

• Analyzer I/O circuits

• Control room signal isolation

💡 Benefits

• Enables safe operation in explosive atmospheres

• Protects field wiring and instrumentation

• Reliable signal conditioning and isolation

• Easy DIN-rail mounting for panel integration

• Widely approved to global IS standards

• Reduces equipment certification complexity