30731565-002 | Honeywell | Power Supply Module

The Honeywell 30731565-002, also cataloged as the 30731565 Power Supply Module, operates as a dedicated hardware component for localized DC bus power conditioning within Honeywell control system platforms.

Hardware Specifications

4-20 mA HART Loop Protocol & Channel-to-Channel Isolation

The 30731565-002 power supply accepts single-phase AC utility input and delivers regulated 25 VDC at up to 20 A to backplane communication buses and field loop networks. Integrated line filtering suppresses transient voltage spikes and high-frequency electrical noise, providing isolated power rails that protect connected 4-20 mA HART loop protocol transmitters and I/O interface electronics from grid disturbances. Built-in current limiting and thermal overload protection prevent output rail voltage collapses during momentary downstream field short circuits.

Frequently Asked Questions

Q: Does the 30731565-002 power supply module support parallel redundant wiring configurations?

A: Yes, multiple power supply units can be tied to a common DC distribution bus using external isolation diodes to provide seamless 1+1 redundant failover without voltage interruption to active controllers.

Q: What protection mechanisms engage if the AC input voltage drops below 100 VAC?

A: An internal brownout detection circuit triggers an under-voltage lockout, turning off the output stage to prevent unregulated voltage levels from reaching connected field modules.

Field Installation Guidelines

1. Mounting Security: Secure the module chassis using all primary mounting hardware holes to support the heavy 21.59 kg static weight and minimize vibration transfer.

2. Thermal Clearance: Maintain a minimum 100 mm vertical ventilation gap above and below the supply housing to facilitate natural convection cooling and prevent thermal trips.

3. PE Wiring: Connect the main protective earth (PE) grounding conductor directly to the heavy-duty grounding terminal lug before energizing AC line power.

4. Output Conductor Sizing: Size 25 VDC field output cabling according to maximum 20 A continuous current ratings to prevent excessive voltage drop over long wiring runs.