BluePulse (PCS KAC + BC cabinets) — commercial energy storage systems, 20–125 kW / 72–260 kWh

KSTAR BluePulse (PCS KAC + BC cabinets) — commercial energy storage systems, 20–125 kW / 72–260 kWh

Supplied as an official KSTAR partner

Manufacturer: KSTAR · China · Model: BluePulse (PCS KAC + BC)

The BluePulse cabinet energy storage system consists of a PCS KAC converter rated 20–125 kW and LFP battery cabinets of 72–260 kWh. The cabinets are for outdoor use, with air or liquid cooling, and the system scales up to 1 MW / 4 MWh.

PCS: KAC20DP2 – KAC125DP2, 20–125 kW, max. efficiency 97–98 %, IP65/IP66
Battery cabinets: BC70–107DE2, BC197–233DE2, BC220–260DE2A (air-cooled), BC208/260DLE (liquid-cooled)
Capacity: 71.7–260 kWh per cabinet (17.92 kWh modules)
Chemistry: LFP, 280 Ah cells

Request a quote All specifications

Technical specifications

PCS	KAC20DP2 – KAC125DP2, 20–125 kW, max. efficiency 97–98 %, IP65/IP66
Battery cabinets	BC70–107DE2, BC197–233DE2, BC220–260DE2A (air-cooled), BC208/260DLE (liquid-cooled)
Capacity	71.7–260 kWh per cabinet (17.92 kWh modules)
Chemistry	LFP, 280 Ah cells
Cabinet ingress protection	IP54
System scale	up to 1 MW / 4 MWh
Certificates	UL 9540A, UN38.3, IEC 62619, IEC 62477, IEC 63056

Specifications are taken from the manufacturer’s technical documentation. Updated 11/06/2026.

Description

The PCS converters of the KAC series, from KAC20DP2 to KAC125DP2, have a maximum efficiency of 97–98 % and come in IP65 or IP66 versions, so they stand next to the cabinets outdoors. The battery cabinets are built on 280 Ah LFP cells in modules of 17.92 kWh, one cabinet holds 71.7–260 kWh, and the enclosure is rated IP54. The BC70–107DE2, BC197–233DE2 and BC220–260DE2A are air-cooled, the BC208/260DLE liquid-cooled. The list of standards covers UL 9540A, UN38.3, IEC 62619, IEC 62477 and IEC 63056. At commercial and industrial sites such a system works as backup, smooths consumption peaks and stores surplus from on-site generation.

How to choose

PCS power and cabinet capacity are chosen separately. First pick a KAC from the 20–125 kW range by peak load, then a cabinet of 71.7–260 kWh by the required backup time. The liquid cooling of the BC208/260DLE makes sense where the cabinet runs deep cycles or sits in a hot room. For a home at 3.68–6 kW with one phase the BlueSpark E3.68–6KS-D22 is better, and for a three-phase one at 4–12 kW the BlueSpark E4–12KT-D22 with 5.12 kWh batteries.