What it is
Chatsworth’s UA-31B9W-C is a monitored PDU supporting up to 100A input and 34.5kW, with remote monitoring at input and branch circuit levels. Features include Secure Array networking (single IP for 48 PDUs), 149°F temperature rating for hot-aisle mounting, phase-balanced outlets on three-phase models, patented locking outlets, and UL/IEC 62368 compliance.
Why it matters
Facilities teams deploying GPU and AI workloads face power density challenges requiring high-amperage PDUs (100A, 30A branch breakers) and cabinet-level monitoring to manage load balancing and prevent outages. The 149°F rating and hot-aisle tolerance directly address thermal constraints in dense racks, while Secure Array topology reduces network complexity and IP overhead. UL 62368 compliance affects procurement and AHJ approval timelines for new deployments.
Evidence from source:
- 100A input configurations and 30A branch circuit breakers cited as optimized for GPU & AI applications
- Temperature rating up to 149°F (65°C) for hot-aisle mounting reliability
- Secure Array allows single IP address for up to 48 PDUs; UL/IEC 62368 compliance for North America and EU
Links
- Canonical source: https://www.chatsworth.com/en-us/products/power-monitoring-security/econnect-power-distribution-units/monitored/monitored-econnect-pdu/ua-31b9w-c
- Player: /players/other/
- Topic: /topics/monitoring-telemetry/
- Topic: /topics/reliability-uptime/
Open questions
- How does Secure Array failover perform under network partition or partial-array failure scenarios?
- What are the labor and coordination implications of universal input cord configurations across multi-site global deployments?