The Honeywell 10302/2/1 is a dedicated power supply module designed for Field Termination Assembly applications within Honeywell distributed control systems. This module provides regulated 24V DC power to field I/O subsystems, ensuring reliable operation of field devices and termination assemblies. The unit is engineered for continuous operation in industrial environments, delivering stable power with comprehensive protection features.
| Parameter | Specification |
|---|---|
| Input Voltage | 115 V AC or 230 V AC selectable |
| Output Voltage | 24 V DC regulated |
| Output Current | 2.5 A continuous |
| Output Power | 60 W |
| Efficiency | Greater than 80 percent at full load |
| Line Regulation | ±0.5 percent |
| Load Regulation | ±1.0 percent |
| Ripple and Noise | 100 mV peak-to-peak maximum |
The 10302/2/1 incorporates comprehensive protection circuitry to ensure reliable operation and safeguard connected equipment. Overload protection automatically limits output current during fault conditions, with automatic recovery once the overload is removed. Short-circuit protection activates immediately upon detection of a shorted output, preventing damage to the power supply and field devices. Overvoltage protection clamps the output to safe levels in the event of internal regulator failure, ensuring that sensitive field electronics are not subjected to excessive voltage.
Visual status indicators provide immediate feedback on power supply operating condition. A green LED illuminates when the output voltage is within normal operating range. A red LED indicates fault conditions including overload, short-circuit, or internal failure. This diagnostic capability enables rapid identification of power supply issues during system troubleshooting and maintenance activities.
The 10302/2/1 is specifically designed for integration with Honeywell Field Termination Assemblies. It mounts directly within the termination assembly cabinet and connects to the field wiring through standardized terminal blocks. The module provides power for field devices connected to the termination assembly, including transmitters, solenoid valves, and other 24V DC field instruments. This integrated approach simplifies system architecture by eliminating separate power distribution panels and associated interconnecting wiring.

Operating Temperature: 0°C to 60°C (32°F to 140°F)
Storage Temperature: -40°C to 85°C (-40°F to 185°F)
Relative Humidity: 5 percent to 95 percent non-condensing
Cooling: Natural convection, no forced air required
Vibration Resistance: Designed for industrial cabinet mounting
This power supply module is utilized across Honeywell control system installations where Field Termination Assemblies are deployed. Typical applications include powering I/O modules, field transmitters, positioners, and other 24V DC field devices. The module is commonly found in process control systems for chemical plants, refineries, power generation facilities, and other industrial automation environments requiring reliable power distribution to field instrumentation.
The 10302/2/1 is designed for DIN rail mounting within standard industrial enclosures. The compact form factor allows efficient use of cabinet space, with the module occupying minimal panel area. Terminal connections are clearly labeled for input power, output power, and protective earth. Installation should be performed in accordance with applicable electrical codes and system documentation.
The power supply module complies with applicable industrial safety and electromagnetic compatibility standards. It is designed for use in non-hazardous locations as part of Honeywell control system installations. All materials and manufacturing processes meet RoHS environmental requirements.



