Description
The Eaton Tripp Lite SR45UBEXPNDNR3 is a 45U standard-depth SmartRack® open frame rack designed for seamless integration in data centers and IT environments. As an expansion model, it features no sides, doors, or roof, allowing easy baying with adjacent enclosures. Equipped with 4 vertical posts with square mounting holes, it supports up to 3,500 lbs of 19-inch rack-mounted equipment.
Ideal for rapid deployment, it arrives fully assembled with pre-installed heavy-duty casters and leveling feet. Adjustable mounting rails and toolless vertical PDU support provide maximum flexibility for your growing infrastructure. With compatibility for cable managers, grounding integration, and durable powder coat finish, the SR45UBEXPNDNR3 delivers both strength and adaptability in an open-access design.
| Specifications | Details |
|---|---|
| Manufacturer | Eaton Corporation (Tripp Lite series) |
| Model Number | SR45UBEXPNDNR3 |
| Product Type | Open-Frame Rack |
| Rack Units | 45U |
| Rack Type | 4-Post Premium Open Frame, Standard Depth |
| Mounting Hole Type | Unthreaded Square Holes |
| Max Device Depth | 37 in / 94 cm |
| Min Device Depth | 4 in / 10.16 cm |
| Load Capacity (Stationary) | 3500 lbs / 1588 kg |
| Load Capacity (Rolling) | 3500 lbs / 1588 kg (rated; note shipping = 2250 lbs) |
| Vertical Mounting Rails | 4 (front and rear, adjustable in ¼" increments) |
| Casters | Yes, heavy-duty 3" pre-installed |
| Leveling Feet | Yes, pre-installed and removable |
| Grounding | Integrated; grounding points at front/rear |
| Toolless PDU/Cable Manager Slots | Yes, supports up to 4 total |
| Material Finish | Black textured powder coat |
| Shipped Fully Assembled | Yes |
| Shipping Dimensions (in) | 90.5 x 26 x 45 |
| Shipping Weight | 180 lbs / 81.65 kg |
| Unit Dimensions (in) | 83.75 x 23.63 x 43 |
| Unit Weight | 130 lbs / 58.97 kg |
| Certifications | UL 60950-1, CE, RoHS, UKCA |
| Warranty | 5-Year Limited Warranty |
| Included Accessories | 50x M6 Cage Nuts, 50x M6 Screws, Owner’s Manual |
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
