Cisco MA-PWR-1100WAC MS390 Power Supply

Brand: Cisco | Category: Accessories & Components

SKU: CSC-MA-PWR-1100WACMS390 | Part #: MA-PWR-1100WAC MS390 | MPN: MA-PWR-1100WAC MS390

Contact for Pricing — Request a Quote

This 1100 W AC power supply delivers reliable, hot-swappable PSU capacity for mission-critical network infrastructure. The Cisco MA-PWR-1100WAC MS390 is a Cisco Original Equipment internal power module engineered specifically for the Cisco Catalyst MS390 Series Switches, ensuring certified compatibility across your deployment.

Network engineers and IT procurement teams standardizing on Cisco Meraki infrastructure will find this AC Power Supply Unit essential for maintaining operational continuity. The MA-PWR-1100WAC MS390 supports dual PSU redundant configuration in MS390 chassis, eliminating single points of failure in production environments. As an internal, hot-swappable form factor, it enables seamless replacement without chassis downtime. All Cisco TAC support coverage on MS390 platforms requires Cisco power supplies—making this unit mandatory for enterprises requiring professional technical support.

Enterprise Deployment Scenarios

• High-availability campus network cores requiring redundant PSU configurations across multiple MS390 switches
• Data center edge switching with zero-downtime maintenance windows and hot-swap capability
• Mission-critical branch offices where power supply failure directly impacts business continuity
• Organizations standardizing on Cisco Meraki MS390 Series for consistent OEM parts and Cisco TAC eligibility
• Distributed multi-site networks requiring spare PSU inventory aligned to Cisco specifications