Honeywell 51402167-100 Dual-Node Rack-Mount Enclosure

Product Overview

The 51402167-100 is a compact, rack-mounted card-file enclosure engineered by Honeywell for use in legacy and modern distributed control system (DCS) environments.
It is designed to securely house control and interface modules while maintaining adequate airflow and thermal stability in continuous-duty industrial installations.

This enclosure supports dual-node architectures, enabling redundant controller or I/O configurations that improve system availability and fault tolerance in mission-critical applications.

Mechanical Design & Cooling

The enclosure is fabricated from industrial-grade steel with a ventilated structure that promotes consistent airflow across installed electronics. An integrated forced-air cooling fan assists in heat dissipation, reducing thermal stress on internal modules during long-term operation.

Its 1U rack height allows efficient use of cabinet space and seamless integration into standard 19-inch equipment racks commonly used in control rooms and process cabinets.

System Compatibility

The 51402167-100 enclosure is intended for use with Honeywell distributed control platforms, including systems deployed in:

• Honeywell Experion PKS environments
• Honeywell TDC 3000 installations

It is commonly used in controller racks, interface cabinets, or redundancy nodes where reliable mechanical support and airflow management are required.

Electrical Classification Notice

While primarily a mechanical card-file assembly, some distributors list this part under power-related hardware categories due to its integration within powered rack systems. Electrical characteristics may vary by configuration and regional compliance requirements and should be verified against the installed system design.

Technical Specifications

General
• Manufacturer: Honeywell
• Model / Order Number: 51402167-100
• Product Category: Dual-Node Rack-Mount Card-File Enclosure
• Country of Manufacture: United States

Mechanical
• Rack Format: Standard 19-inch rack
• Rack Height: 1U (44.45 mm / 1.75 in)
• Housing Material: Ventilated steel chassis
• Cooling Method: Integrated axial fan (forced-air)
• Approximate Weight: ~1.0 kg (2.2 lb)
• Installation: Front-mount rack hardware

Environmental (Typical System Ratings)
• Intended Cabinet Ratings: NEMA 1, NEMA 4, NEMA 12
• Equivalent Ingress Protection: IP65 / IP66 (system-dependent)

Typical Applications

• Redundant controller or interface node mounting
• Control system modernization projects
• Process automation cabinets in oil & gas, power generation, chemicals, and manufacturing
• Replacement or expansion of existing Honeywell DCS infrastructure

FAQ

Q: Does this unit include control electronics or power supplies?
A: No. 51402167-100 is a mechanical enclosure designed to hold system modules. Electronics and power components are supplied separately.

Q: Can it be used outside Honeywell systems?
A: Mechanically it is a standard rack enclosure, but fitment and airflow alignment are optimized for Honeywell DCS modules.

Q: Is the cooling fan field-replaceable?
A: Fan serviceability depends on the installed cabinet configuration; standard industrial maintenance practices apply.