Allen-Bradley 1769-RTBN18 CompactLogix Terminal Block
The Allen-Bradley 1769-RTBN18, also cataloged as the 1769-RTBN18 Removable Terminal Block, operates as a dedicated hardware component for field wiring termination and signal routing within Allen-Bradley CompactLogix platforms.
Suffix Breakdown & Model Matrix
- 1769: Compact I/O hardware platform designation for Allen-Bradley CompactLogix and MicroLogix 1500 systems.
- RTBN: Removable Terminal Block component family featuring NEMA-style screw terminals.
- 18: 18-point physical wiring contact configuration.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1769-RTBN18 |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 0.09 kg (0.19 lbs) |
| Dimensions | Standard 1769 Compact I/O single-slot terminal door footprint |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | Passive passive connector (0 W) |
| Pin Count | 18 screw terminals |
| Wire Material | Copper conductors (rated up to 90 deg C) |
| Solid Wire Range | 22 to 14 AWG |
| Stranded Wire Range | 22 to 16 AWG |
| Max Operating Humidity | 80% non-condensing |
| Operating Altitude | Up to 1000 m without derating |
Backplane Bus Communication and Deterministic I/O
The Allen-Bradley 1769-RTBN18 terminal assembly provides reliable mechanical isolation and direct electrical routing for field signals entering 1769 Compact I/O modules. Designed to support deterministic networks by preventing signal degradation, the terminal block maintains constant pressure on copper field leads to eliminate high-vibration contact resistance. Full hardware compatibility with standard 1769 backplane bus communication structures allows hot-swappable module maintenance when field power loops are properly isolated.
Frequently Asked Questions
Q: Can the 1769-RTBN18 terminal block be wired while removed from the module housing?
A: Yes, the removable design allows technicians to pre-wire field cabling to the 1769-RTBN18 block prior to snapping it onto the module chassis.
Q: What wire gauge specifications are permitted for stranded copper leads on this block?
A: The terminal screw clamps accept stranded copper wire sizes ranging from 22 AWG up to 16 AWG with a minimum insulation temperature rating of 90 deg C.
Field Installation Guidelines
- Ensure all field power sources and sensor excitation loops connected to the terminal assembly are fully de-energized.
- Strip field conductor insulation according to recommended strip lengths before inserting wires into the terminal cage clamps.
- Tighten each terminal screw securely, avoiding excessive torque to prevent damage to internal thread landings.
- Align the plastic side retention latches with the host 1769 Compact I/O module and press firmly until the assembly locks in place.
- Close the front protective terminal cover door to maintain finger-safe protection across field wiring contacts.
Allen-Bradley 1769-RTBN18 CompactLogix Terminal Block
Allen-Bradley 1769-RTBN18 CompactLogix Terminal Block
The Allen-Bradley 1769-RTBN18, also cataloged as the 1769-RTBN18 Removable Terminal Block, operates as a dedicated hardware component for field wiring termination and signal routing within Allen-Bradley CompactLogix platforms.
Suffix Breakdown & Model Matrix
- 1769: Compact I/O hardware platform designation for Allen-Bradley CompactLogix and MicroLogix 1500 systems.
- RTBN: Removable Terminal Block component family featuring NEMA-style screw terminals.
- 18: 18-point physical wiring contact configuration.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | 1769-RTBN18 |
| Brand | Allen-Bradley |
| Origin | USA |
| Weight | 0.09 kg (0.19 lbs) |
| Dimensions | Standard 1769 Compact I/O single-slot terminal door footprint |
| Operating Temp | 0 to 60 deg C |
| Power Consumption | Passive passive connector (0 W) |
| Pin Count | 18 screw terminals |
| Wire Material | Copper conductors (rated up to 90 deg C) |
| Solid Wire Range | 22 to 14 AWG |
| Stranded Wire Range | 22 to 16 AWG |
| Max Operating Humidity | 80% non-condensing |
| Operating Altitude | Up to 1000 m without derating |
Backplane Bus Communication and Deterministic I/O
The Allen-Bradley 1769-RTBN18 terminal assembly provides reliable mechanical isolation and direct electrical routing for field signals entering 1769 Compact I/O modules. Designed to support deterministic networks by preventing signal degradation, the terminal block maintains constant pressure on copper field leads to eliminate high-vibration contact resistance. Full hardware compatibility with standard 1769 backplane bus communication structures allows hot-swappable module maintenance when field power loops are properly isolated.
Frequently Asked Questions
Q: Can the 1769-RTBN18 terminal block be wired while removed from the module housing?
A: Yes, the removable design allows technicians to pre-wire field cabling to the 1769-RTBN18 block prior to snapping it onto the module chassis.
Q: What wire gauge specifications are permitted for stranded copper leads on this block?
A: The terminal screw clamps accept stranded copper wire sizes ranging from 22 AWG up to 16 AWG with a minimum insulation temperature rating of 90 deg C.
Field Installation Guidelines
- Ensure all field power sources and sensor excitation loops connected to the terminal assembly are fully de-energized.
- Strip field conductor insulation according to recommended strip lengths before inserting wires into the terminal cage clamps.
- Tighten each terminal screw securely, avoiding excessive torque to prevent damage to internal thread landings.
- Align the plastic side retention latches with the host 1769 Compact I/O module and press firmly until the assembly locks in place.
- Close the front protective terminal cover door to maintain finger-safe protection across field wiring contacts.
