ABB Bailey IPFLD01 Power Supply

Physical Dimensions and Mounting Specifications

The ABB Bailey IPFLD01 delivers regulated power to field devices and I/O channels. This module measures 130mm in height, 75mm in width, and 95mm in depth. You can mount this unit on a standard 35mm DIN rail inside any control cabinet. The module weighs 0.58 kilograms , so one person can handle the installation easily.

Internal Architecture and Component Density

The ABB Bailey IPFLD01 contains 176 individual components on its six-layer PCB. A 100 kHz switching controller manages power conversion with high efficiency. Four fast-recovery diodes handle rectification in the secondary circuit. Additionally, eight current-sense resistors monitor output loads for overload protection.

Energy Storage and Hold-Up Performance

This power module stores 42.5 joules across eight electrolytic capacitors. This energy reserve maintains full output regulation for 35 milliseconds after input power drops. The storage also supports controlled shutdown signaling to the host controller. Consequently, field devices receive clean power through brief mains interruptions.

Parameter	Value	Unit
Dimensions (H x W x D)	130 x 75 x 95	mm
Weight	0.58	kg
PCB layer count	6	layers
Total components	176	pieces
Switching controller frequency	100	kHz
Fast-recovery diodes	4	units
Current-sense resistors	8	units
Electrolytic capacitors	8	units
Total energy storage	42.5	J
Hold-up time (full load)	35	ms
Input voltage range (AC)	85–264	V AC
Input voltage range (DC)	110–300	V DC
Output voltage (field)	24	V DC
Output current rating	5.0	A
Output power	120	W
Efficiency (typical)	87	%
Output ripple (max)	50	mV pp

Interface and Connectivity Features

The ABB Bailey IPFLD01 provides two 6-pin terminal blocks for AC input and DC output. A single 16-pin header links the module to the Bailey system backplane. You will also find one 2-pin connector for remote voltage sensing. Each terminal accepts AWG 20 to AWG 12 copper wire for secure, low-resistance connections.

Protection Features and Safety Circuits

This module includes overvoltage protection that clamps the output at 28V DC. A foldback current limiting circuit reduces output during sustained overload conditions. Reverse polarity protection prevents damage from accidental field wiring errors. Furthermore, a thermal shutdown disables the output when internal temperature exceeds 85°C.

Diagnostic and Status Indication

Five LED indicators provide immediate feedback for power and fault conditions. Green POWER confirms the presence of valid input voltage to the module. Amber OUTPUT glows steadily when the 24V field supply is active. Red OVERLOAD blinks during current limit or short-circuit events. Two additional LEDs show remote sense status and temperature warning conditions.

Remote Monitoring and Control Features

The ABB Bailey IPFLD01 includes voltage and current telemetry through the backplane interface. You can read output voltage with 0.1V resolution from the host controller. The module also reports output current with 0.1A accuracy for load monitoring. Furthermore, you can enable or disable the output remotely through a software command.

Environmental Specifications and Compliance

You can operate this power module from -20°C to 60°C ambient temperature without derating up to 4A. Derate output current by 3% per degree between 50°C and 60°C for reliable operation. Storage temperature ranges from -40°C to 85°C for long-term preservation. This module meets UL 60950 and CE safety standards for industrial power supplies.