Technical Specifications
| Parameter Name | Parameter Value |
|---|---|
| Product Model | 900TBK-0001 |
| Manufacturer | Honeywell |
| Product Type | Low-Voltage Terminal Block (Removable Wiring Interface) |
| Series Compatibility | Honeywell ControlEdge HC900 Hybrid Controller I/O Modules |
| Terminal Type | Screw Clamp (Phillips / flat-blade), detachable plug-in style |
| Number of Positions | 20-position (standard DI/DO/AO) or 36-position (high-density analog AI) |
| Rated Voltage | ≤ 60 V AC/DC (Low Voltage designation) |
| Rated Current | ≤ 5 A per terminal point |
| Wire Size Accepted | 24–12 AWG (0.2–2.5 mm²) solid or stranded |
| Conductor Material | Tin-plated copper alloy contacts |
| Housing Material | Polyamide 6.6 (PA66), UL94-V0 flame retardant |
| Operating Temperature | 0°C to +60°C (block itself -20°C to +100°C) |
| Mechanical Life | ≥ 100 insertion/removal cycles |
| Mounting | Snaps onto HC900 I/O module front connector |
| Certifications | cULus Listed, CE Marked, IEC 60947-7-1 compliant |
| Color | Black (Low Voltage Identification) |
Main Features and Advantages
Secure Screw-Clamp Termination: The Honeywell 900TBK-0001 employs high-torque screw-clamp terminals that create a gas-tight, low-resistance joint between the field wire and the I/O module’s signal path. This design resists loosening caused by thermal cycling and panel vibration—two leading causes of intermittent analog signal drift or false digital state transitions in process plants. The tin-plated copper alloy contacts ensure stable conductivity over the service life of the connection .
Detachable Plug-In Design for Fast Module Exchange: The Honeywell 900TBK-0001 plugs directly onto the male header of the HC900 I/O card and can be left wired in place while the electronic module is removed for replacement or diagnostics. This means field wiring does not need to be disturbed during an I/O module swap, significantly reducing commissioning and repair time. Maintenance teams can replace a faulty I/O card without touching a single field wire, minimizing the risk of introducing wiring errors during service .
Flame-Retardant Construction for Safety Compliance: The Honeywell 900TBK-0001 housing is molded from polyamide 6.6 with UL94-V0 flame-retardant rating, meeting stringent safety requirements for industrial control cabinets. In the event of an internal fault or external fire exposure, the terminal block housing resists ignition and does not contribute to flame spread—a critical property for equipment installed in process facilities where electrical safety is paramount .
Clear Position Numbering for Error-Free Wiring: Each position on the Honeywell 900TBK-0001 is clearly numbered to correspond with the I/O channel designation on the mated module. This labeling minimizes wiring errors during cabinet build and commissioning, particularly in high-density installations where dozens of analog and discrete signals terminate in close proximity. The numbered positions also simplify troubleshooting by allowing technicians to quickly identify the correct terminal for a given channel .
