Description
The Vertiv PowerIT VA4N21A1 Rack Transfer Switch ensures uninterrupted power delivery to single-corded IT equipment by automatically transferring load between dual input power sources in under 8 milliseconds. Designed for high-availability environments, this 20A, 208V rPDU features 12 combination C13/C19 outlets, dual NEMA L6-20P input plugs, real-time local and remote power monitoring, and optional environmental sensors for optimized uptime. Built with a horizontal 19” rackmount form factor, it supports advanced protocols, daisy-chaining of up to 50 devices, and includes a 5-year warranty when registered.
| Specification | Details |
|---|---|
| Model Number | VA4N21A1 |
| Type | Rack Transfer Switch (Monitored Unit Level) |
| Input Voltage | 200–240V |
| Input Current | 20A |
| Load Capacity | 3.3kW at 208V |
| Transfer Time | <4–8ms (Automatic Switching) |
| Inputs | 2 (Dual NEMA L6-20P) |
| Outputs | 12 Combination C13/C19 |
| Mounting | 19" Horizontal, Adjustable 4-Post & 2-Post |
| Power Cable Length | 10ft / 3m |
| Monitoring | Input Power, Local Display, Remote via IP |
| Network Protocols | SNMP, HTTP/S, SSH, Syslog, Modbus TCP, etc. |
| Remote Sensors Support | 1 port (supports up to 16 sensors) |
| Daisy-Chaining | Up to 50 units per IP |
| Chassis Color / Finish | Black Powder Coat |
| Dimensions (HxWxD) | 1.72in x 17in x 18in (44mm x 432mm x 457mm) |
| Weight (Shipped) | 19 lbs (8.62 kg) |
| Operating Temperature | Max 60°C (140°F) |
| Certifications | UL & c-UL 62368-1, FCC Part 15 Class A, RoHS |
| Warranty | 5 years (with registration), otherwise 3 years |
Payment & Security
Your payment information is processed securely, and we do not store credit card details or access your credit card information.
Return Policy (Short Summary)
We offer a 30-day return window for most unopened, factory-sealed items.
Returns must be authorized before shipping back and must include all original packaging and accessories. Opened or used items are not returnable unless defective.
Some products—such as custom orders, special-order items, audio gear, software, and LED video walls—are non-returnable. Non-defective returns may be subject to a 20–30% restocking fee, and customers are responsible for return shipping costs.
For damaged or incorrect items, please contact us immediately.
From Scope to Sign-Off
A structured delivery process designed to reduce risk and keep projects moving.
Plan
Discovery, site review, requirements gathering, and project alignment. We define scope, constraints, and success criteria before any design work begins.
- Discovery calls & stakeholder interviews
- On-site survey & infrastructure review
- Requirements & use-case documentation
- Project scope, timeline & milestone alignment
Engineer
System design, schematics, signal flow, BOM development, and documentation. Every project leaves this phase with a complete engineering package.
- AV system design & signal flow diagrams
- Equipment selection & BOM development
- Rack layout & control system design
- As-built documentation package
Deploy
Procurement, logistics, installation, programming, commissioning, and training. We own the delivery from first shipment to final handoff.
- Authorized procurement & logistics coordination
- Physical installation & cable management
- Control system programming & configuration
- Commissioning, testing & end-user training
Support
Monitoring, maintenance, lifecycle planning, and long-term service agreements. We stay engaged long after project close.
- 24/7 remote system monitoring
- Preventive & reactive maintenance
- Technology lifecycle & refresh planning
- Long-term service level agreements
A decade of delivery — trusted by 275+ clients across industries
