The IS111-1B Intrinsically Safe Barrier acts as a critical line of defense for vibration monitoring systems deployed in explosive industrial settings. Engineered specifically for use with single-axis and multi-axis accelerometers, this single-input barrier restricts incoming electrical energy to ensure that any potential line fault, spark, or thermal reaction cannot trigger an ignition in areas where flammable gases, vapors, or dust are present. It works seamlessly across various safety standards, providing full compatibility whether your deployed sensors carry IECEx, ATEX, or CSA ratings.
Designed for streamlined deployment, these compact, space-saving devices feature a direct DIN rail mounting design that allows them to be quickly snapped onto the rail while simultaneously establishing an integrated grounding connection to the Protective Earth (PE). Because of its focused single-input design, specialized configurations like triaxial dynamic vibration sensors will require three separate IS111-1B barrier units to safely route each data channel back to the safe zone.
| Feature | Specification |
| Product Model | IS111-1B |
| Primary Function | Restricts electrical energy to prevent ignition in explosive atmospheres |
| Hazardous Area Rating | Certified for Class I, Division 1 / Zone 0 and Zone 1 classified zones |
| Sensor Compatibility | Standard and small-size single-axis and multi-axis accelerometers |
| Certification Standards | Acceptable for use with IECEx, ATEX, and CSA rated sensors |
| Configuration Style | Single-input channel barrier |
| Triaxial Multi-Channel Support | Requires 3 separate IS111-1B units per triaxial sensor connection |
| Mounting & Interface Type | Quick snap-on DIN rail installation with integrated grounding connection |
| Enclosure Integration | Directly compatible with IS200 NEMA 4X (IP66) protective field enclosures |
