Product Overview

The ABB PHARPSCH100000 is a premium Modular Power System III (MPS III) power supply chassis engineered to house and manage multiple power modules within ABB Symphony Plus, traditional Harmony, and INFI 90 distributed control systems (DCS), as well as AC 800M controller platforms. This rugged 19‑inch rack‑mount enclosure acts as the central power hub, delivering regulated, isolated DC voltages to controllers, I/O racks, communication gateways, and field instruments in continuous process industries.

Designed for maximum system availability, the PHARPSCH100000 supports hot‑swappable power trays and full redundancy configurations, enabling online maintenance without process interruption. Its heavy‑duty steel construction, intelligent thermal management, and high‑density backplane ensure stable power delivery even under extreme temperature, vibration, and electromagnetic interference typical of power plants, refineries, and heavy manufacturing.

Key Technical Specifications

Key Features

14‑Slot High‑Density Architecture – The PHARPSCH100000 accommodates up to 14 MPS III power supply trays in a compact 19‑inch footprint, offering outstanding power density for space‑constrained cabinets. Each slot supports blind‑mate connectors for quick installation and removal.

True Hot‑Swappable Operation – Power modules can be inserted or extracted while the system is live, eliminating planned downtime for maintenance or capacity upgrades. Automatic current sharing and fault isolation ensure that a failed module does not affect the output bus.

Advanced Redundancy and Load Balancing – The chassis supports N+1 and 2N redundant configurations with intelligent load‑sharing logic. Dual independent input feeds can be connected, and the backplane automatically switches to the healthy feed in case of input loss, ensuring zero‑interruption power to critical loads.

Robust Mechanical Construction – Fabricated from high‑strength galvanised steel with a corrosion‑resistant finish, the chassis withstands dust, moisture, and mechanical shock. The durable design meets the stringent requirements of industrial environments, including seismic zones.

Optimised Thermal Performance – Ventilation slots and airflow channels are engineered to maximise natural convection cooling. For high‑power installations, optional fan trays can be mounted to provide forced‑air cooling, extending the lifetime of power semiconductors.

Clean Power Delivery – The backplane incorporates low‑impedance copper busbars and advanced filtering to minimise voltage drop and suppress high‑frequency noise. Full isolation between outputs prevents cross‑talk, making the chassis ideal for analogue‑sensitive control loops.

User‑Friendly Installation and Maintenance – Front‑accessible modules, removable side panels, and clearly labelled terminals simplify wiring and routine inspections. The chassis includes status LEDs for power‑good and fault indications, and optional communication interfaces allow remote health monitoring via the DCS.

Compatible Power Supply Modules

The PHARPSCH100000 is fully compatible with ABB’s MPS III power tray family, including:

• PHARPS32000000 – MPS III standard power supply tray
• PHARPS32010000 – MPS III single‑output power supply
• PHARPS32200000 – Multi‑output (5V, ±15V, 24V, 48V) power supply

This interoperability allows flexible system scaling – from single‑chassis basic configurations to multi‑chassis redundant architectures.

Typical Applications

The ABB PHARPSCH100000 is the preferred power distribution platform for:

• Thermal, Hydro, and Nuclear Power Plants – Providing reliable power to turbine control, boiler management, and safety systems.
• Oil & Gas Refineries – Powering distributed controllers in hazardous and remote areas.
• Chemical and Pharmaceutical Processing – Enabling continuous production with minimal power‑related disruptions.
• Water and Wastewater Treatment – Ensuring 24/7 operation of municipal control networks.
• Steel, Aluminium, and Cement Factories – Withstanding high ambient temperatures and dust.
• Data Centres and Critical Infrastructure – Where uptime is paramount and power quality is non‑negotiable.

Seamless Integration with ABB DCS Platforms

The chassis is designed for plug‑and‑play integration into ABB Symphony Plus, Harmony, and INFI 90 systems. It interfaces directly with controller racks, remote I/O stations, and operator workstations through standard cabinet wiring. Its form factor matches ABB’s existing cabinet cutouts, making it a drop‑in replacement for legacy power shelves in upgrade projects.

For enhanced system resilience, dual PHARPSCH100000 chassis can be paralleled to create a fully duplicated power system, with automatic switchover under fault conditions.

Maintenance and Lifecycle Support

ABB’s global service network provides comprehensive support for the PHARPSCH100000, including spare parts, repair services, and technical documentation. The modular design reduces mean time to repair (MTTR) to minutes, while the hot‑swap capability allows field replacement by trained technicians without special tools.

Why Choose the ABB PHARPSCH100000?

The ABB PHARPSCH100000 is more than a passive enclosure – it is an active power management platform that ensures the highest levels of availability for your most critical automation assets. With decades of proven field performance, rigorous quality testing, and full compliance with international standards, this power chassis delivers the reliability that plant operators and system integrators trust.

Whether you are engineering a greenfield DCS project, modernising an ageing INFI 90 installation, or expanding an existing Symphony Plus network, the PHARPSCH100000 provides a future‑ready, scalable, and cost‑effective power foundation. Backed by ABB’s engineering expertise and worldwide support, it is the intelligent choice for mission‑critical power distribution.