Tripp Lite · SmartOnline SU (legacy 3-phase)
Tripp Lite SmartOnline SU (legacy 3-phase) three-phase UPS
The Tripp Lite SmartOnline SU (three-phase) is an online double-conversion three-phase UPS rated 20 to 80 kVA.
Tripp Lite SmartOnline SU (three-phase): key facts
- TypeOnline double-conversion three-phase UPS
- Power range20 to 80 kVA
- StatusDiscontinued
- Current alternativeTripp Lite (Eaton) SmartOnline S3M
- Service in CanadaPreventive maintenance, battery replacement and emergency repair, including discontinued units. 1 (438) 881-3363
Sources, checked October 3, 2026: Eaton (Tripp Lite), SU60K (retired).
Is the Tripp Lite SmartOnline SU (three-phase) discontinued? What replaces it?
Yes. Eaton's Tripp Lite site marks the SU20K3/3, SU20KX, SU60K and SU80KX models as retired and not replaced. Eaton's current Tripp Lite three-phase line is the SmartOnline S3M. See the Tripp Lite (Eaton) SmartOnline S3M page.
Units already installed keep working after the manufacturer's cut-off; what changes is parts and factory support. We maintain discontinued units and plan the replacement when it makes sense. How to plan the replacement of a discontinued three-phase UPS.
How a three phase double conversion UPS carries the load, and where the bypass sits.
SmartOnline SU (legacy 3-phase) models
The orderable configurations we supply and service:
| Model | Rating | Phase / Voltage | Part number | Status |
|---|---|---|---|---|
| Tripp Lite SmartOnline SU 20kVA 16kW 3-phase 208V (SU20K33) | 16 kW | 3ph in/out (3:3 Wye) 120/208V | · | EOL |
| Tripp Lite SmartOnline SU 20kVA 16kW modular 3-phase 400V (SU20KX) | 16 kW | 3ph in/out (3:3 Wye) 380/400/415V | · | EOL |
| Tripp Lite SmartOnline SU 60kVA 48kW modular 3-phase 208V (SU60K) | 48 kW | 3ph in/out (3:3 Wye) 120/208V | · | EOL |
| Tripp Lite SmartOnline SU 80kVA modular 3-phase 400V (SU80KX) | 3ph in/out (3:3 Wye) 380/400/415V | SU80KX40C | EOL |
Specifications
Batteries and battery cabinets for the Tripp Lite SmartOnline SU (three-phase)
Battery strings and cabinets depend on the configuration and runtime. Matched blocks and cabinets are listed under Tripp Lite replacement batteries online.
Tripp Lite SmartOnline SU (three-phase) service in Canada
We service the Tripp Lite SmartOnline SU (three-phase) across Canada: preventive maintenance, battery replacement and emergency repair, including units the manufacturer no longer supports. We are a Canadian UPS service and supply provider, working on three-phase systems since 2012.
- Phone: 1 (438) 881-3363
- Email: info@threephaseups.ca
- Coverage: across Canada, in English and French
Planned visits and emergency calls are arranged through on-site service for the Tripp Lite SmartOnline SU (three-phase).
Sizing, redundancy and custom builds
We engineer the solution: load and growth analysis, redundancy (N, N+1, 2N), runtime and battery sizing, paralleling and switchgear, and custom configurations where the standard catalogue doesn't fit. Because we supply every major brand, the SmartOnline SU (legacy 3-phase) is one option we weigh on its merits, not the only answer.
Common questions
What is the Tripp Lite SmartOnline SU (three-phase)?
The Tripp Lite SmartOnline SU (three-phase) is an online double-conversion three-phase UPS rated 20 to 80 kVA.
Is the Tripp Lite SmartOnline SU (three-phase) discontinued?
Yes. Eaton's Tripp Lite site marks the SU20K3/3, SU20KX, SU60K and SU80KX models as retired and not replaced. Eaton's current Tripp Lite three-phase line is the SmartOnline S3M.
Who services the Tripp Lite SmartOnline SU (three-phase) in Canada?
A Canadian UPS service and supply provider, in business since 2012, services the Tripp Lite SmartOnline SU (three-phase) across Canada: preventive maintenance, battery replacement and emergency repair, including discontinued units. Call 1 (438) 881-3363 or email info@threephaseups.ca.
Request a quote: Tripp Lite SmartOnline SU (legacy 3-phase)
Tell us the application and we reply within 4 business hours with the sizing, the right system, the installation and a written quote. Three-phase installs usually need a licensed electrician, so let us know if you have one.
Brand names are trademarks of their owners and are used only to identify the equipment we service. We are not the manufacturer and are not affiliated with it.