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Juniper EX3400 150 W AC power supply unit, silver metal enclosure with rear exhaust fan and side handle

HPE Juniper Networking

HPE Juniper Networking JPSU-150-AC-AFI 150 W server power supply for EX3400

SKU CH-46AZ-TY88G

150 W AC power supply for Juniper EX3400 switches with back-to-front airflow

  • Engine BrandJuniper Networks
  • 150 W output powers the EX3400 switch reliably
  • Back-to-front airflow matches chassis cooling design
  • Proprietary form factor fits EX3400 bays exactly
  • Hot-swappable design keeps the network running during replacement
  • Juniper Networks engineering ensures validated compatibility

Juniper EX3400 150 W Power Supply

This proprietary AC power supply delivers 150 W for the Juniper EX3400 Ethernet switch. It is built for network administrators who need a direct replacement or a spare unit to keep their switching infrastructure running. The back-to-front airflow design matches the standard cooling direction of the EX3400 chassis.

150 W Output for EX3400 Compatibility

The single specification that determines fit is the 150 W output rating combined with the proprietary form factor made exclusively for the EX3400 series. This unit will not work in other Juniper switches or standard server chassis because the connector, dimensions and airflow path are model-specific.

Capacity and Headroom

At 150 W this supply comfortably powers a fully populated EX3400 switch under normal operating loads including PoE devices within the switch's power budget. It runs out of headroom if the connected Power over Ethernet devices demand more than the switch's total allocated PoE budget, requiring a higher-wattage supply or reduced port loading.

Highlights

  • 150 W output powers the EX3400 switch reliably
  • Back-to-front airflow matches chassis cooling design
  • Proprietary form factor fits EX3400 bays exactly
  • Hot-swappable design keeps the network running during replacement
  • Juniper Networks engineering ensures validated compatibility

Specifications

Engine BrandJuniper Networks

Questions about this item

What does the 150 W rating deliver inside an EX3400?

It powers the EX3400 switch with up to 150 W of AC input, supporting the chassis, ports and PoE budget defined by the switch firmware.

How does the proprietary Juniper interface limit use to the EX3400?

The supply uses a Juniper-specific connector and signalling that only the EX3400 chassis recognises, so it cannot be used in standard ATX or other vendor equipment.

What physical slot and airflow direction does the unit need in the EX3400?

It slides into the EX3400 power-supply bay and uses back-to-front airflow, matching the switch’s front-to-rear cooling design.

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