Overview
The GEMS ST-54801 is a dual channel zener barrier engineered to provide intrinsic safety for non-voltage-producing sensors and switches in hazardous locations. This barrier is part of the proven 54800 Series and offers encapsulated construction that is impervious to dust and moisture, making it ideal for demanding industrial environments where explosion-proof installations are required.
Key Features
- Dual channel design — one barrier per floating lead for signal conditioner applications
- Encapsulated construction — resistant to dust and moisture contamination
- Positive signal polarity output
- Intrinsic safety certification for hazardous locations
- Compact form factor eliminates need for explosion-proof enclosures
Technical Specifications
- Input Voltage: 15 VDC
- Output Current: 200 mA
- Resistance: 65 Ohms
- Capacitance: 5.60 microfarads
- Inductance: 0.70 millihenry
- Signal Polarity: Positive
- Construction: Encapsulated
- Series: 54800 Series Dual Channel Zener Barrier
- Certifications: UL, FM, CSA
Typical Applications
- Hazardous area signal conditioning for non-voltage-producing sensors
- Intrinsic safety barriers for Class I, II, and III locations
- Industrial process control in explosive atmospheres
- Signal transmission from remote instrumentation in classified areas
- Oil and gas, chemical, and pharmaceutical facility monitoring
Compatibility & Replacements
Compatible With
- Non-voltage-producing sensors and switches
- Signal conditioner equipment requiring dual channel barriers
- Intrinsically safe process control systems
- Industrial automation platforms requiring hazardous area certification
- UL, FM, and CSA-compliant safety systems
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The GEMS ST-54801 is part of the 54800 Series; related models include the ST-54800 and ST-54803, though direct cross-compatibility requires application-specific engineering review.
Works With
- Intrinsic safety signal chains in hazardous location installations
- Process control systems requiring dual-channel isolation
- Safety instrumented systems (SIS) and emergency shutdown (ESD) networks
- Pressure, level, flow, and temperature monitoring in explosive atmospheres






