Honeywell 51404170-175 MC-PSRX04 Power System Cage

The Honeywell 51404170-175, also cataloged as the MC-PSRX04 Power System Cage, operates as a dedicated hardware component for mechanical protection and redundant power distribution within Honeywell Experion and TPS DCS platforms.

Hardware Specifications

Channel-to-Channel Isolation and Loop Signal Integrity

The backplane routing within the cage assembly provides galvanic channel-to-channel isolation to decouple field power surges from sensitive control processors. Internal bus rails maintain consistent voltage levels across connected power modules and battery backup circuits, minimizing common-mode interference on 4-20 mA HART and low-voltage analog loops. Integrated cold junction compensation (CJC) references on associated I/O termination panels maintain measurement stability during high ambient thermal shifts across control cabinets.

Frequently Asked Questions

Q: How does the power system cage support redundant power configurations?

A: The cage frame houses dual internal power module slots tied directly to a shared backplane, permitting seamless failover without interrupting bus power feed to the control chassis.

Q: Are the internal boards protected against harsh industrial environments?

A: The internal printed circuit board assemblies, including the charger and back panel boards, feature factory-applied conformal coating to prevent degradation from moisture, atmospheric dust, and corrosive airborne contaminants.

Q: What grounding procedure must engineers follow during backplane wiring?

A: Field technicians must bond the chassis ground lug directly to the central enclosure earth grounding bar using a low-impedance copper strap before energizing internal power rails.

Field Installation Guidelines

Engineers must verify that main power breakers are tagged out and fully de-energized prior to mounting the cage inside the industrial cabinet. Align the metal housing with standard enclosure rack rails, securing all mounting hardware to guarantee mechanical stability under continuous operational vibration. Connect the main protective earth conductor directly to the chassis ground point to ensure static discharge dissipation.

When installing internal modules such as the 51309206-175 charger board or power supplies, slide each module straight along the card guides until the backplane connectors fully seat. Ensure all field signal cables (4-20 mA and 1-5 V lines) route through dedicated wire trunks separated from high-voltage AC feeds by at least 300 mm. Tighten all terminal screws to specified torque limits and inspect toggle switch settings prior to applying system power.