ABB DPA UPScale ST 80 kW frame (Series 2)

ABB's small modular UPS frame taking four 20 kW modules, the mature DPA platform most likely to feed a spares market

ABB DPA UPScale ST 80 kW frame (Series 2) is one of 22 UPS systems tracked in the SecondWatt catalogue, each with specifications, lead times and indicative secondary-market pricing.

ABB DPA UPScale ST 80 dossier: 20 kW modules in an 80 kW frame, 60 kW N+1, 96% efficiency, used module pricing, inspection checklist and end-of-life signals.

Why it matters

This is the clearest small-frame example of the category's cabinet-versus-battery rule. ST 40 and ST 60 frames accept internal 7 and 9 Ah battery blocks sitting in a warm cabinet, so on any used ST 40 or ST 60 the internal string should be assumed scrap and the unit priced cabinet-only. ST 80 and above take external batteries only, so the separation is already clean at the nameplate.

Who buys it

Owners of the installed DPA UPScale fleet buying replacement or spare 20 kW modules, and IEC-market facilities in the 20 to 200 kW band still specifying the platform new. Independent service firms are the natural buyers of module stock as ABB's own channel tightens, since a constrained new-module supply is exactly what pushes value into the used module.

Role in the data center

Edge and small data hall UPS, computer room modular UPS, and a spares platform for the installed base in the 20 to 200 kW band.

Key specifications

Technical summary

Module ratings: 10 kW or 20 kW at unity output power factor ST 80 frame: 80 kW, 1-4 modules, 60 kW maximum N+1 ST 80 physical: 550 x 1135 x 775 mm; 169-257 kg without batteries Family frames: ST 40, ST 60, ST 80, ST 120, ST 200 Max system: 200 kW and 10 modules per frame; 20 modules across 4 frames Input/output: 220/380, 230/400, 240/415 V AC; input PF at or above 0.99 Efficiency: up to 96% double conversion; 98% or better in eco mode Output THD: below 1.5% on linear load Battery: external only on ST 80 and above; internal blocks on ST 40 and ST 60 Standards: IEC/EN 62040-1, 62040-2, 62040-3; CE; ISO 9001:2015

Pricing and availability

Trend: up Lead time, used or refurbished: 2-6 weeks for modules through international sellers. Warranty, used: 1-year typical from refurbishment dealers.

Lifecycle and maintenance

Modular UPS frames outlive their modules: cabinet, bus and static bypass run 15 years or more while the hot-swap power modules carry the fans and DC capacitors that wear. That moves the maintenance question from cabinet age to module hours and module count, since a 1,500 kW ABB DPA system holds 30 module-level fan and capacitor sets. Eaton's 93PM service life extension program replaces power modules, DC capacitors, static switch, fans and the communications board inside the existing shell in about 24 hours, resetting another 10 years. Ask whether that program has been run before pricing any 10-year-old modular frame.

Common failure points

• Power module population — A frame sold on nameplate ships with fewer modules than the rating implies
• Module fans and capacitors — Consumables sit inside each module, so wear scales with module count not cabinet count
• Battery strings — VRLA capacity fades below 80% of nameplate and takes the ride-through with it
• Missing filler plates — Open slots break the cooling path and signal careless handling
• Live Swap entitlement — A frame without the Live Swap label must be bypassed for any module work
• Controls obsolescence — Controller and display boards reach end of life ahead of the power train

Inspection checklist

Module count — count populated slots against the frame rating; Eaton lists a 4 kVA 9PXM power module at 4,377 USD Filler plates — Schneider's manual requires a module or filler plate in every slot on a 50 kW module bay Module consumables — fans and capacitors live inside each module; a 1,500 kW DPA system carries 30 such sets Live Swap label — verify the physical label; a Galaxy VS or VL without it must be bypassed, at 200 mm standoff Module part numbers — confirm interchange; Schneider GVPM50KD is 50 kW at 400/480 V and 25 kW at 208 V Battery age — sealed VRLA turns over at 3-5 years per Eaton lifecycle guidance; assume a full string past that Battery capacity — reject any string below 80% of nameplate capacity under IEEE 1188 practice Battery impedance — ohmic readings above 20% of the commissioning baseline condemn the cell DC bus capacitors — Eaton rates 7 years of continuous duty and up to 10 under favorable conditions Cooling fans — Vertiv field data gives 5-6 years or 40,000-50,000 hours of operation before replacement Static bypass — transfer to bypass and back under load 3 times; verify each module's own bypass path where fitted Parallel kit — verify the parallel hardware and unit count; these frames commonly parallel 4 to 8 ways Firmware — verify the controller revision and card slots; Eaton's 11-point guidance makes firmware access a condition Lifecycle stage — confirm OEM support status; Mitsubishi's 4-stage lifecycle table is the only dated public one Rigging — verify path and lift plan; an ABB DPA 250 S4 frame runs 345-667 kg once populated with modules

Procurement channels

Module supply appears on eBay through international sellers; frames do not appear at all. ABB's own channel handles service parts. No North American refurbishment dealer stocks the platform.

Regional notes

IEC 400 V product absent from ABB Electrification's US catalogue. The North American equivalents are DPA 60 UL at 20-60 kW and DPA 120 UL at 20-600 kW, both 208 V and both different products.