PCS

Sunny Central Storage UP-S-US

SMA Solar Technology · Forced air (OptiCool) · Central PCS, 1500V

Utility-scale central battery inverter for the US market, available in four power ratings from 2,930 to 4,600 kVA. Operates at up to 1,500V DC with 99.2% peak efficiency and IP54-rated electronics. Certified to UL 1741-SA/SB and IEEE 1547-2018 for US grid interconnection, with optional grid-forming and black-start capability.

2,930–4,600 kVA

Power Rating

99.2%

Max Efficiency

1,500V

Max DC Voltage

IP54

IP Rating

Download Datasheet (PDF)

Specifications

DC Parameters

Operating DC Voltage Range	962–1,500V (SCS 2930/4400) / 1,003–1,500V (SCS 3060/4600)
Max DC Current	3,200 A (SCS 2930/3060) / 4,750 A (SCS 4400/4600)
Max Short Circuit DC Current	> 500 kA

AC Parameters

Nominal AC Power (1200 Vdc, cos φ=1, 35°C)	2,933 / 3,067 / 4,400 / 4,600 kW
Max AC Current (35°C / 40°C / 50°C)	2,566–3,850 / 2,480–3,721 / 2,310–3,464 A
Nominal AC Voltage	660V (SCS 2930/4400) / 690V (SCS 3060/4600)
Grid Frequency	50 Hz (47–53 Hz) / 60 Hz (57–63 Hz)
Max THD	< 3% at nominal power
Power Factor	0.0 overexcited to 0.0 underexcited
Min Short-Circuit Ratio	> 2

Efficiency

Max Efficiency

99.2%

Protective Devices

DC Disconnection	DC load break switch
AC Disconnection	AC circuit breaker
DC Overvoltage Protection	Surge arrester, type I
Lightning Protection	Level III (IEC 62305-1)
Insulation Monitoring	Standard

General

Dimensions (W x H x D)	2,815 x 2,318 x 1,588 mm
Weight	< 3,400 kg (SCS 2930/3060) / < 3,700 kg (SCS 4400/4600)
Internal Auxiliary Supply	8.4 kVA transformer
Sound Power (rated / with Silencer Kit)	89/83 dB(A) (SCS 2930/3060) / 91/85 dB(A) (SCS 4400/4600)
Operating Temperature	−25°C to +60°C (optional −40°C cold start)
Max Altitude	1,000 m (2,000 m optional)
Communication	Ethernet, Modbus Client, Modbus Server

Grid Functions

Grid Forming / Black Start	Optional
Static Grid Support	Q(U), P(f)
Dynamic Grid Support (FRT)	Supported
Active Islanding Detection	Supported

Key Features

99.2% peak conversion efficiency across all four power ratings
1500V DC architecture supporting systems from 2,930 to 4,600 kVA
Intelligent forced-air cooling rated for continuous outdoor operation from −25°C to +60°C
Symmetric bidirectional power capability with identical grid-feed and charging ratings
Optional grid-forming and black-start functionality for microgrid applications
Full reactive power support across four quadrants
Compact enclosure allows transport of up to four units per standard shipping container

Product Certifications

UL 62109-1 UL 1741-SA UL 1741-SB UL 1998 CAN/CSA C22.2 107.1 IEEE 1547-2018 IEEE 1547.1-2020

Environmental Compliance

IEC 61000-6-4 IEC 61000-6-2 EN 55022 FCC Part 15 Class A

About the Manufacturer

SMA Solar Technology

Niestetal, Germany · Founded 1981

SMA Solar Technology AG, founded in 1981 and headquartered in Niestetal, Germany, is one of the world's leading manufacturers of solar inverters and energy storage power conversion systems. The company offers dedicated utility-scale and commercial BESS PCS solutions known for ...

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