



Introduction
The HIMA F3303 is a safety-rated digital input module designed for use within HIMatrix and F3000 safety systems. It provides reliable acquisition of discrete signals from field devices, including switches, sensors, and contacts, feeding them into the safety logic for processing. Engineered for industrial-grade reliability, the F3303 ensures fault detection, diagnostics, and fail-safe operation in critical applications such as petrochemical plants, power generation, oil & gas facilities, and process automation systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Number | F3303 |
| Module Type | Digital Input Module |
| Input Channels | 16 independent digital inputs |
| Supported Input Types | 24 V DC discrete contacts or low-current “1-signal” inputs |
| Input Detection Time | ~8 milliseconds typical |
| Power Supply | Rack-powered module per HIMatrix system specification |
| Safety / Isolation | Safety-rated with channel isolation and fault detection |
| Mounting | Rack-mounted in HIMatrix or F3000 chassis |
| Operating Temperature | –25 °C to +60 °C |
| Dimensions (H × W × D) | 100 × 160 × 50 mm |
| Weight | 0.95 kg |
| Reliability Features | Diagnostics, safe-state signaling, fault detection |
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