Juniper 740-046873 Power Supply for EX4300 350W P/N: JPSU-350-AC-AFO

Description:

The Juniper 740-046873 power supply (P/N: JPSU-350-AC-AFO) is used in enterprise networking systems to provide a reliable 350 W AC power source for Juniper switches, ensuring consistent operation under demanding workloads. Commonly installed in Juniper EX4300 series switches where stable power delivery and redundancy support are critical for network uptime, this PSU helps maintain continuous connectivity in data centers and campus networks. Network engineers, IT administrators, and system integrators use the JPSU-350-AC-AFO for network upgrades, infrastructure expansions, retrofit deployments, and replacement of failed or aging power modules.

Applications:

The Juniper 740-046873 power supply is commonly used in enterprise LAN and data center environments including wiring closets, core/distribution racks, and managed network segments where EX4300 switches require dependable 350 W AC power and the ability to support PoE/PoE+ loads, high network throughput, and resilient operations.

Technical Specifications:

• Manufacturer: Juniper Networks
• Model / Part number: 740-046873
• Alternate part number: JPSU-350-AC-AFO
• Product type: AC power supply unit (PSU)
• Power output: 350 W AC
• Input voltage: AC line (model dependent)
• Efficiency: Designed for enterprise networking power efficiency
• Redundancy: Supports hot-swap and redundant PSU configurations (platform dependent)
• Mounting: Chassis mount (EX4300 switch compatible)
• Protection features: Overvoltage, overload protection (platform dependent)
• Application environment: Enterprise network infrastructure

Common Replacements:

• Juniper JPSU-350-AC-AFO (alternate SKU)
• Cisco Catalyst 350 W PSU
• HPE Aruba 350 W switch power supply