Description
The Eaton 9355 Double Conversion Online UPS delivers reliable, high-performance power protection for mission-critical environments including data centers, healthcare systems, banking infrastructure, and industrial operations. Designed with a robust external form factor and powered by a 27 kW capacity, this UPS ensures continuous uptime and clean, stable power through advanced double-conversion technology.
Operating at 208V with three-phase input and output, the Eaton 9355 maintains consistent performance across demanding applications. Its integrated Industrial Gateway Card enhances system monitoring and control, while the LCD/LED interface provides real-time visibility into system status and performance.
Built for reliability and efficiency, this UPS achieves up to 91% efficiency while utilizing maintenance-free sealed lead-acid batteries. With flexible communication options including RS-232 and relay interfaces, along with EPO support, the Eaton 9355 is engineered for seamless integration into enterprise power infrastructures.
| Specification | Details |
|---|---|
| Brand | Eaton |
| Product Series | 9355 |
| Model | 9355 External UPS |
| Product Type | Double Conversion Online UPS |
| Load Capacity | 27 kW |
| Input Voltage | 208V AC |
| Output Voltage | 208V AC |
| Phase | Three Phase |
| Input Frequency | 50/60 Hz |
| Output Frequency | 50/60 Hz |
| Efficiency | Up to 91% |
| Form Factor | External |
| Display Type | LCD/LED Interface |
| Network Management | DB-9 RS-232, Relay Card |
| Serial Port | Available |
| EPO Port | Supported |
| Battery Type | Sealed Lead Acid |
| Battery Characteristics | Maintenance-Free |
| Battery Capacity | 9000 mAh |
| Maximum Operating Temperature | 104°F (40°C) |
| Noise Level | 56 dB(A) |
| Color | Black |
| Application Use Cases | IT, Corporate, Healthcare, Banking, Industrial |
| Certifications | UL 1778, IEC 61000-4-5, cULus, ISO 9001:2015, ISO 14001:2004, NOM-NYCE, ANSI C62.41 Category B3, FCC Part 15 Class A |
| Energy Star Certified | Not Energy Star Certified |
| Condition | New and Factory Fresh |
| Shipping Weight | 160 lbs |
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
