Honeywell MU-NKD020 PLC Extension Cable

The Honeywell 51195153-020, also cataloged as the MU-NKD020 PLC Extension Cable, operates as a dedicated hardware component for signal interconnectivity and bus expansion between PLC modules and Field Termination Assemblies (FTAs) within Honeywell Experion PKS platforms.

Hardware Specifications

Channel-to-Channel Isolation & 4-20 mA Loop Routing

The multi-core shielded cable structure isolates internal field signals from external electromagnetic interference (EMI) and radio frequency interference (RFI). This shielding integrity maintains individual channel-to-channel isolation parameters when routing sensitive 4-20 mA HART loop protocol analog signals and discrete state signals across cabinet bays.

Frequently Asked Questions

Q: Can the MU-NKD020 cable be field-cut or spliced to custom lengths?

A: Splicing or modifying pre-terminated cable assemblies is not recommended, as altering the shield termination integrity increases susceptibility to noise pickup and impedance variations.

Q: What is the rated insulation voltage limit for field wiring carried through this cable?

A: The cable assembly features an overall insulation voltage rating of 300 V for signal level conductors.

Q: Does the cable housing provide protection against high-frequency electrical transients?

A: The integrated multi-core braided screen suppresses capacitive coupling and transient high-frequency electrical noise from adjacent power wiring.

Field Installation Guidelines

• Maintain a minimum bend radius during tray installation to avoid mechanical strain on internal conductors.
• Ensure factory-terminated connector locking screws are fully engaged to guarantee continuous electrical contact and grounding.
• Separate signal extension cables from high-voltage AC motor lines within cabinet wire ducting.
• Ground cable shield drains directly to the system protective earth bus bar at designated termination ends.
• Inspect pin alignment on connector headers prior to mating to prevent bent contact pins.