ABB YM322001-ED PFSK101 Power Supply Unit

Product Overview

The PFSK101 (YM322001-ED) from ABB is an industrial-grade AC power supply module developed for legacy ABB control architectures used in distributed control systems and process automation platforms. Designed for long-term continuous duty, this unit converts a wide-range AC input into a stable, regulated DC output to support controllers, I/O racks, and communication modules.

This model has been officially discontinued and is classified as obsolete, but it remains in active use within many installed systems across power generation, manufacturing, and process industries where system upgrades are not immediately feasible.

Key Technical Characteristics

The PFSK101 (YM322001-ED) is engineered to deliver reliable power under demanding industrial conditions, with emphasis on electrical stability, protection, and compatibility with ABB legacy hardware.

Electrical Specifications

• Input Voltage Range: 120–240 VAC

• Input Frequency: 47–63 Hz

• Rated Output Power: 2.2 kW

• Efficiency: Up to 98% under nominal load

• Power Factor: Approximately 0.99

Mechanical & Environmental Data

• Enclosure Protection: IP20

• Mounting: Panel-mounted (DIN rail not supported)

• Dimensions: 27.9 × 5.1 × 27.9 cm

• Weight: 1.7 kg

Functional Highlights

• High conversion efficiency minimizes thermal stress and energy losses

• Wide AC input tolerance supports operation in unstable grid conditions

• Integrated protection against overvoltage, overcurrent, and short circuits

• Proven compatibility with ABB DCS and control racks from the same generation

Typical Applications

The PFSK101 (YM322001-ED) is commonly deployed in:

• ABB distributed control systems

• Power generation and energy distribution facilities

• Continuous process plants such as chemicals, pulp & paper, and metals

• Manufacturing lines relying on legacy ABB automation platforms

Lifecycle & Replacement Notes

This power supply unit is obsolete and no longer manufactured by ABB. It is typically sourced as surplus or refurbished stock for maintenance, system repair, or spare part strategies. When planning long-term operation, migration to newer ABB power supply families should be evaluated for improved efficiency and availability.

FAQ

Is the PFSK101 suitable for new system designs?
No. Due to its obsolete status, it is recommended only for maintaining or repairing existing installations.

Can this unit be replaced with a modern ABB power supply?
In many cases yes, but electrical ratings, mounting method, and system compatibility must be verified at the cabinet and controller level.

Does this model support hot-swapping?
No. The PFSK101 requires system shutdown before installation or removal.