Allen-Bradley 1769-RTBN18 CompactLogix Removable Terminal Block
Configured for field wiring execution in CompactLogix and MicroLogix 1500 controller networks, the Allen-Bradley 1769-RTBN18 (1769-RTBN18 Removable Terminal Block) provides direct physical/electrical execution. This 18-position detachable connector connects field sensor/actuator wiring directly to 1769 Compact I/O modules, enabling rapid module replacement without disturbing field connections.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1769-RTBN18 |
| Brand | Allen-Bradley |
| Origin | Multiple |
| Weight | 0.07 kg (0.15 lbs) |
| Dimensions | Standard 1769 I/O module footprint |
| Operating Temp | 0 to 60 deg C (32 to 140 deg F) |
| Storage Temp | -40 to 85 deg C (-40 to 185 deg F) |
| Power Consumption | Passive wiring interface (N/A) |
| Terminal Type | 18-pin NEMA screw-clamp |
| Wire Gauge (Solid) | 22 to 14 AWG (0.34 to 2.5 mm sq) |
| Wire Gauge (Stranded) | 22 to 16 AWG (0.34 to 1.5 mm sq) |
| Terminal Screw Torque | 0.68 Nm (6 lb-in) |
Backplane Bus & Field I/O Density Scaling
The removable terminal assembly interfaces with the local 1769 I/O module backplane via heavy-duty contact pins, maintaining low contact resistance across all 18 signal paths. High-density terminal spacing supports dense field point distribution while ensuring adequate creepage and clearance distances between adjacent I/O channels. Corrosion-resistant housing materials stabilize signal integrity under continuous operational thermal cycling.
Frequently Asked Questions
Q: Does the 1769-RTBN18 support live removal and insertion under power (RIUP)?
A: No. The host 1769 I/O module and backplane bus must be powered down prior to removing or installing the terminal block to prevent electrical arcing and module hardware damage.
Q: What wire types and torque limits apply to the terminal screws?
A: Use solid or stranded copper wire rated for 90 deg C. Tighten all screw clamps with a calibrated screwdriver to a maximum torque of 0.68 Nm (6 lb-in) to avoid thread damage or loose connections.
Q: Can this terminal block fit non-1769 series modules?
A: No. The physical keying and retention latches are designed exclusively for 1769 Compact I/O modules and are incompatible with ControlLogix or Point I/O platforms.
Field Installation Guidelines
De-energize the host CompactLogix chassis before starting physical installation or maintenance. Strip field conductors to the specified insulation length and terminate solid or stranded copper wires (22 to 14 AWG) into the 18 designated screw clamp terminals. Use wire ferrules in high-vibration applications to prevent conductor strand separation. Torque each NEMA-style screw to exactly 0.68 Nm (6 lb-in) to maintain mechanical compression without stripping threads. Align the connector housing keying slots with the target 1769 Compact I/O module, seat the terminal block firmly, and engage the top and bottom retention latches to prevent accidental dislodgement during operation. Route all signal conductors through cabinet wire channels, maintaining physical isolation from high-voltage AC lines.
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| Condition | 100% New with Original Package |
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| Shipping Port | ShangHai, Xiamen |
| Warranty | 12 Months |
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| A: All our new and original products come with a standard one-year warranty. |
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