Vertiv Geist 16A Rack Transfer Switch with Auto Failover under 8ms
The Vertiv Geist Rack Transfer Switch (VA7U21A0) delivers mission-critical redundant power to single-corded IT equipment in data centres, server rooms, and edge locations. Featuring automatic power loss detection and failover to a secondary source in less than 4-8 milliseconds, this intelligent rack PDU ensures your equipment stays powered even when primary power fails. With dual C20 inlets, 6 combination C13/C19 outlets, and support for loads up to 3.6kW at 230V, it's the ultimate solution for high-availability environments across Australia.
Why You'll Love It
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Ultra-Fast Transfer Speed: Automatically switches to backup power in under 4-8ms to prevent downtime
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Dual Power Inputs: Two independent C20 inlets connect to primary and secondary power sources for true redundancy
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Outlet-Level Switching & Monitoring: Remotely reboot unresponsive equipment and monitor real-time power usage (kWh, W, VA, PF, V, A) at each outlet
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Versatile Combination Outlets: 6 C13/C19 outlets accommodate both C14 and C20 cables without adapters
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Environmental Monitoring: Support for optional remote sensors to track temperature, humidity, and other critical conditions
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Network Ready: Dual Ethernet ports for daisy chaining up to 50 units and secure web-based management
Mission-Critical Automatic Failover
The Vertiv Geist Rack Transfer Switch uses an open transition (break-before-make) process that doesn't require phase synchronization between power feeds, making it ideal for both data centre and edge deployments. Enhanced redundant switches and fail-safe fused thermistors protect your critical equipment during power transfers. The intuitive front panel interface provides visual identification of the active power source and allows manual transfer for scheduled maintenance.
Intelligent Power Management
Monitor your rack's power consumption at the input and outlet level with ANSI C12.1 and IEC 62053-21 compliant metering. Set user-defined thresholds to receive email and SNMP alarms when voltage, current, real power, apparent power, power factor, or kilowatt hours fall outside your desired range. Switched outlet control lets you remotely turn on, turn off, or reboot individual outlets to recover unresponsive devices or increase runtime of critical equipment during power failures.
Flexible Deployment Options
The 1U horizontal form factor fits standard 19-inch racks with adjustable 4-post or 2-post mounting. Supports global voltage ranges of 100-240V at 16A or 20A, delivering 1.9kW at 120V, 3.3kW at 208V, or 3.6kW at 230V. The Vertiv Geist Upgradeable product line allows you to install the intelligence level you need today and upgrade monitoring technology as your requirements evolve.
Built for Australian IT Environments
Whether you're managing a corporate data centre, educational institution server room, or distributed edge infrastructure, the Vertiv Geist Rack Transfer Switch provides the reliability and flexibility demanded by mission-critical Australian operations. Compatible with single-corded servers, networking equipment, storage arrays, and other rack-mounted IT devices.
What's in the Box
- Vertiv Geist VA7U21A0 Rack Transfer Switch PDU
- Mounting hardware for 4-post or 2-post racks
- User manual and documentation
- 5-year limited warranty (when registered within 120 days of purchase)
Full Specifications
| Model Number |
VA7U21A0 |
| Product Type |
Rack Transfer Switch, Switched, Metered-by-Outlet rPDU |
| Input Power |
Dual IEC C20, 100-240V, 16A or 20A |
| Output Receptacles |
6 × Combination C13/C19 |
| Power Capacity |
1.9kW @120V, 3.3kW @208V, 3.6kW @230V |
| Form Factor |
19" Horizontal (1U), Adjustable 4-Post or 2-Post Mounting |
| Transfer Speed |
Less than 4-8 milliseconds |
| Switching Method |
Open Transition (Break-Before-Make) |
| Monitoring |
Input & Outlet Level (kWh, W, VA, PF, V, A), ANSI C12.1 & IEC 62053-21 |
| Switching Functionality |
Automatic Transfer with Manual Override, Per-Outlet Remote Control |
| Network Connectivity |
Dual Ethernet (RJ-45), Daisy Chain up to 50 Units |
| Environmental Sensors |
Optional (sold separately) |
| Display |
LCD Touchscreen |
| Dimensions (H × W × D) |
1.7" × 17" × 18" (43mm × 432mm × 457mm) |
| Rack Height |
1U |
| Weight (Approximate) |
6.8kg (15 lb) |
| Finish |
Black Powder Coat |
| Max Operating Temperature |
60°C |
| Certifications |
UL and c-UL Listed 62368-1, FCC Part 15 Class A, RoHS Compliant, TAA Compliant |
| Warranty |
5-Year Limited (when registered within 120 days) |
Specifications are sourced from the manufacturer product page and may be updated.
