Description

Honeywell FC-PSU-UNI2412 Universal Power Supply Unit

The Honeywell FC-PSU-UNI2412 SPS5878-LF / 145245-LF, also cataloged as the FC-PSU-UNI2412 Universal Power Supply Unit, operates as a dedicated power conversion component for regulated DC power distribution within Honeywell Safety Manager and FSC system platforms.

Hardware Specifications

Parameter	Specification
Model	FC-PSU-UNI2412
Brand	Honeywell
Origin	USA
Operating Temp	-40 deg C to +70 deg C
Power Consumption	300 W maximum output power
Part Number	SPS5878-LF / 145245-LF
Product Type	Universal Power Supply Unit
Manufacturer	Honeywell (TDI Power / Transistor Devices Inc.)
Input Voltage Range	100 - 240 VAC
Input Frequency	47 - 63 Hz
Maximum Input Current	6.0 A
Output Voltage	25 VDC nominal system bus voltage
Output Current	12.0 A
Protection Functions	Overvoltage protection, short-circuit protection, thermal protection
System Compatibility	Honeywell Safety Manager and Fail Safe Controller (FSC) systems
Compliance	Lead-free LF version, RoHS compliant

Process Control Power Distribution and Isolation Characteristics

The FC-PSU-UNI2412 provides regulated DC output for Honeywell Safety Manager and FSC hardware assemblies. The module accepts a universal AC input range and converts incoming power into a controlled 25 VDC system supply.

Additionally, the power unit supports process control architectures where stable DC distribution is required for controller racks, I/O assemblies, and connected field interface equipment. The design incorporates electrical protection functions to limit damage from output faults, excessive temperature conditions, and abnormal load states.

For Honeywell process automation platforms, the power module operates alongside system components that support 4-20 mA HART loop protocol, FOUNDATION Fieldbus / Profibus PA connectivity, and channel-to-channel isolation requirements at the field interface level. The PSU itself provides the DC power infrastructure required by these distributed control and safety modules.

Frequently Asked Questions

Q: Does the FC-PSU-UNI2412 support redundant power configurations?
A: The module is designed for Honeywell Safety Manager and FSC system power architectures. Redundant installation depends on the rack configuration and system design requirements.

Q: What DC output does the FC-PSU-UNI2412 provide?
A: The power supply provides a 25 VDC nominal output with a maximum current rating of 12.0 A.

Q: What protection functions are integrated into this power supply?
A: The module includes overvoltage protection, short-circuit protection, and thermal protection functions for abnormal operating conditions.

Field Installation Guidelines

Install the FC-PSU-UNI2412 inside the designated Honeywell Safety Manager or FSC power rack according to system installation documentation.

Verify that the AC input wiring matches the permitted 100 - 240 VAC range before energizing the module. Maintain correct polarity on the DC output connections and inspect terminal tightening to prevent contact resistance.

Route AC input wiring separately from low-level signal cables, including analog measurement and communication lines. Connect protective grounding according to the cabinet grounding design and maintain proper shielding practices for adjacent instrumentation wiring.

Before commissioning, confirm the DC bus voltage at the rack level and check that connected modules operate within their specified power limits.

Specifications

• Brand: Honeywell

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems