Delta · Ultron NT
The Delta Ultron NT is a transformer-based three-phase UPS rated 20 to 500 kVA.

Delta lists the Ultron NT as a current range.
Sources, checked October 3, 2026: Delta, Ultron NT 20-500 kVA.
How a three phase double conversion UPS carries the load, and where the bypass sits.
The orderable configurations we supply and service:
| Model | Rating | Phase / Voltage | Part number | Status |
|---|---|---|---|---|
| Delta Ultron NT-20K (20kVA) | 16 kW | 3ph 4-wire+PE in/out 380/400/415V | NT-20K | Current |
| Delta Ultron NT-30K (30kVA) | 24 kW | 3ph 4-wire+PE in/out 380/400/415V | NT-30K | Current |
| Delta Ultron NT-40K (40kVA) | 32 kW | 3ph 4-wire+PE in/out 380/400/415V | NT-40K | Current |
| Delta Ultron NT-50K (50kVA) | 40 kW | 3ph 4-wire+PE in/out 380/400/415V | NT-50K | Current |
| Delta Ultron NT-60K (60kVA) | 48 kW | 3ph 4-wire+PE in/out 380/400/415V | NT-60K | Current |
| Delta Ultron NT-80K (80kVA) | 64 kW | 3ph 4-wire+PE in/out 380/400/415V | NT-80K | Current |
| Delta Ultron NT-100K (100kVA) | 80 kW | 3ph 4-wire+PE in/out 380/400/415V | NT-100K | Current |
| Delta Ultron NT-120K (120kVA) | 96 kW | 3ph 4-wire+PE in/out 380/400/415V | NT-120K | Current |
| Delta Ultron NT-160K (160kVA) | 128 kW | 3ph 4-wire+PE in/out 380/400/415V | NT-160K | Current |
| Delta Ultron NT-200K (200kVA) | 160 kW | 3ph 4-wire+PE in/out 380/400/415V | NT-200K | Current |
| Delta Ultron NT-260K (260kVA) | 208 kW | 3ph 4-wire+PE in/out 380/400/415V | NT-260K | Current |
| Delta Ultron NT-320K (320kVA) | 256 kW | 3ph 4-wire+PE in/out 380/400/415V | NT-320K | Current |
| Delta Ultron NT-400K (400kVA) | 320 kW | 3ph 4-wire+PE in/out 380/400/415V | NT-400K | Current |
| Delta Ultron NT-500K (500kVA) | 400 kW | 3ph 4-wire+PE in/out 380/400/415V | NT-500K | Current |
Battery strings and cabinets depend on the configuration and runtime. Replacement batteries for the Delta Ultron NT are matched by block type and cabinet.
We service the Delta Ultron NT 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.
Field service for this range is described under Delta three-phase UPS service.
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 Ultron NT is one option we weigh on its merits, not the only answer.
The Delta Ultron NT is a transformer-based three-phase UPS rated 20 to 500 kVA.
No. Delta lists the Ultron NT as a current range.
A Canadian UPS service and supply provider, in business since 2012, services the Delta Ultron NT across Canada: preventive maintenance, battery replacement and emergency repair, including discontinued units. Call 1 (438) 881-3363 or email info@threephaseups.ca.
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.