Description

Allen Bradley 1769-RTBN18 Removable Terminal Block

Configured for field wiring termination in CompactLogix 1769 I/O systems, the Allen Bradley 1769-RTBN18 (1769-RTBN18 Removable Terminal Block) provides direct electrical connection between external conductors and compatible I/O modules.

Hardware Specifications

Parameter	Specification
Model	1769-RTBN18
Brand	Allen Bradley
Product Type	Removable Terminal Block (RTB)
Origin	United States
Operating Temp	Compatible with installed 1769 CompactLogix module operating environment
Power Consumption	Passive component; no external power consumption
Terminal Count	18 terminals
Terminal Style	Spring-clamp (cage clamp) terminals
Compatible Platform	Allen Bradley CompactLogix 1769 I/O series
Wire Capacity	Solid wire: 0.34 to 1.5 mm2 (22 to 16 AWG); stranded wire: 0.34 to 1.0 mm2 (22 to 18 AWG)
Mounting Method	Direct snap mounting on compatible 1769 I/O modules
Keying Feature	Mechanical keying to prevent incorrect terminal block installation

EtherNet/IP and CompactLogix I/O Hardware Integration

The 1769-RTBN18 functions as a passive interface component within the Allen Bradley CompactLogix I/O architecture. Therefore, it does not process data or communicate through the backplane bus. Instead, it maintains the physical termination point between field devices and the I/O module channels.

Additionally, the CompactLogix platform uses modular I/O density scaling, allowing different 1769 I/O modules to share standardized removable terminal block designs. The spring-clamp structure reduces terminal loosening caused by vibration and repeated maintenance operations.

Frequently Asked Questions

Q: Is the 1769-RTBN18 an active I/O module?
A: No. The 1769-RTBN18 is a passive removable terminal block. It provides field wiring termination and does not contain signal processing circuits.

Q: Can the 1769-RTBN18 be installed on any CompactLogix module?
A: No. The terminal block must match the mechanical and electrical requirements of the specific 1769 I/O module. Users must verify module compatibility before installation.

Q: Does the 1769-RTBN18 require firmware configuration?
A: No. The removable terminal block contains no firmware and does not require software configuration or network addressing.

Field Installation Guidelines

• Confirm that the connected 1769 I/O module supports the 1769-RTBN18 terminal block before installation.
• Disconnect field power before removing or installing the removable terminal block.
• Insert conductors according to the specified wire size range and ensure proper spring-clamp engagement.
• Route field wiring separately from high-voltage and high-noise conductors to reduce electrical interference.
• Maintain proper shielding and grounding practices according to the connected I/O module installation requirements.
• Verify terminal identification markings before applying field power.
• Inspect the terminal block locking mechanism after installation to confirm correct mechanical engagement.

Specifications

• Brand: Allen Bradley

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems