ABB 6644424A1 Voltage Bus Monitor Assembly – Harmony Rack Power System (MPS3)

Product Overview:

The ABB 6644424A1 is a high-performance voltage bus monitor assembly designed specifically for use within the Harmony Rack Power System (MPS3). This essential monitoring device ensures system stability by continuously tracking the voltage levels of +5VDC, +15VDC, -15VDC, and MCOM on the power system’s bus bar.

When any monitored voltage drifts outside the specified tolerance range, the unit promptly triggers a low-true PF1 fault signal, alerting the system to potential power issues. With a low current draw of under 50mA, the 6644424A1 offers efficient operation without compromising system performance.

Engineered for durability and ease of use, this unit features a compact enclosure that allows for straightforward DIN rail mounting, making it ideal for space-constrained industrial control cabinets.

Key Features:

• Real-time voltage monitoring: +5VDC, +15VDC, -15VDC, and MCOM

• Low-true PF1 signal generation on voltage fault detection

• Energy-efficient design with <50mA input current

• Compact form factor for DIN rail mounting

• Designed for Harmony Rack Power System (MPS3)