Honeywell 51201298-290 Shielded Control Cable

The Honeywell 51201298-290, also cataloged as the 51201298-290 Shielded Control Cable, operates as a dedicated hardware component for high-reliability signal transmission within Honeywell distributed control system architectures.

Suffix Breakdown & Model Matrix

The catalog designation 51201298-290 establishes a specific media construction and length profile. The base designation 51201298 signifies the shielded multi-core industrial control cable architecture, while the -290 suffix dictates the factory-standard spool configuration length and insulation batch parameters.

Hardware Specifications

4-20 mA HART Loop Protocol and Channel Isolation

The shielded control cable maintains signal integrity across analog and digital networks by implementing stringent electrical shielding practices. Key performance elements include:

• Supporting 4-20 mA HART loop protocol transmission without attenuation over extended cable runs due to low resistance and stable conductor impedance.
• Utilizing an aluminum foil combined with a braided copper shield design to achieve comprehensive EMI and RFI attenuation in electrically noisy control cabinets.
• Providing channel-to-signal isolation preservation by preventing cross-talk and external voltage transients from corrupting low-level process variable data.

Frequently Asked Questions

Q: What are the restrictions regarding bending radii when routing the 51201298-290 cable through dense panels?

A: Installers must adhere to standard industrial multi-core cabling minimum bend radii (typically 10 times the outer diameter) to prevent deformation of the internal aluminum foil and braided copper shields.

Q: How should the shielding be terminated to maintain electromagnetic immunity?

A: The foil and braided copper shield should be terminated 360 degrees to the cabinet ground bar using EMC-compliant cable glands to ensure continuous high-frequency noise diversion.

Field Installation Guidelines

1. Ensure all associated power and signal circuits are completely de-energized and locked out (LOTO) prior to pulling or terminating the cable.
2. Route the 16 mm outer diameter cable away from high-voltage power conduits and variable frequency drive motor leads to minimize induction risks.
3. Strip the outer jacket carefully to expose the braided copper shield, applying an EMC-rated grounding clamp at the enclosure entry point.
4. Verify conductor continuity and insulation resistance levels prior to connecting the annealed high-purity copper cores to controller I/O termination assemblies.