High-Density Field Termination for Tricon Digital Input Systems
The 2652-9 terminal board (part number 7400058-390) provides a robust and organized field wiring interface for Triconex Tricon safety instrumented systems . This board connects field devices like switches, sensors, and actuators directly to the 32 isolated input channels of compatible Triconex digital input modules. Consequently, this component ensures reliable signal transmission while maintaining the mechanical stability demanded by safety-critical applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Triconex (Schneider Electric) |
| Part Number | 7400058-390 |
| Model | 2652-9 |
| Product Type | Termination Board / External Termination Panel |
| Input Channels | 32 isolated input channels |
| Input Signal Types | Dry contact, wet contact, pulse |
| Input Voltage Range | 90–155 VAC/VDC |
| Input Current Range | 6–9 mA |
| Point Isolation | 1500 VDC – 2500 VDC |
| Power Consumption | 2.9 W |
| Dimensions (L x W x H) | 173 x 117 x 48 mm (6.8 x 4.6 x 1.9 in) |
| Weight | 0.4 kg (0.9 lb) |
| Operating Temperature | -40°C to +85°C |
| Humidity Tolerance | 5% to 95% non-condensing |
| Vibration Resistance | 2 g, 5 to 500 Hz |
| Shock Resistance | 30 g, 11 ms |
| Mounting | DIN rail or panel mount |
| Safety Compliance | Supports SIL 3-rated Triconex TMR architecture |
Signal Flexibility and Channel Isolation
The 7400058-390 terminal board supports a versatile range of input signal types, including dry contact, wet contact, and pulse signals . Furthermore, its high point isolation of 1500 VDC to 2500 VDC between channels provides robust protection against ground loops and electrical faults . This design ensures accurate signal acquisition from field devices even in electrically noisy industrial environments. Consequently, the board integrates seamlessly with Triconex digital input modules for reliable safety system performance.
Hot-Swap Support and System Reliability
The 2652-9 terminal board enables hot-swappable module replacement, allowing technicians to replace faulty I/O modules without system shutdown . Advanced diagnostic capabilities continuously monitor channel health and detect faults quickly . Furthermore, high-integrity communication protocols ensure data transmission accuracy and reliability . Consequently, these features minimize downtime and maximize system availability in critical safety applications.
Application Scenarios
This terminal board is extensively deployed across industries requiring fail-safe signal termination. Typical applications include Emergency Shutdown Systems (ESD), Fire & Gas Detection Networks (F&G), Burner Management Systems (BMS), and High-Integrity Pressure Protection Systems (HIPPS) . The 7400058-390 also supports turbine control systems (TCS) and critical control processes in chemical plants, oil & gas refineries, and power generation facilities . By connecting field wiring to Triconex I/O modules, it reinforces the overall reliability of SIL 3-rated safety instrumented systems.
Details
| Weight | 2.85 kg |
|---|---|
| Dimensions | 41.2 × 17.8 × 6.2 mm |
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