Discover CAB-426 Brings 426 kWh Commercial Battery Storage
The Discover AES CABINET CAB-426 is an outdoor, cabinet-based battery energy storage system for community, commercial and industrial projects. It holds 426 kWh of nominal LiFePO4 capacity (418 kWh usable), runs at a 1,331.2 V nominal system voltage and delivers 209 kW of continuous battery power.
It is built for 1500 VDC or lower applications and integrates with third-party power conversion systems, including DynaPower and Sinexcel, plus SCADA and EMS platforms. The CAB-426 is the largest model in Discover's AES CABINET range, and Discover offers it in pre-engineered packages of 1 to 8 cabinets.
Why You'll Love The Discover CAB-426 Cabinet
Serious capacity, small footprint. 418 kWh usable and 209 kW continuous power in one 51 x 51 inch cabinet.
Liquid-cooled thermal management. An integrated liquid chiller and PTC heating system keeps cells in range from -22 to 131°F.
Safety built in. Audible and visual alarms with E-stop, heat and smoke detection, aerosol fire suppression and a passive deflagration vent, with UL9540 DC ESS and UL9540A testing.
Scales to megawatt-hours. Discover's packages combine up to 8 cabinets for as much as 3,344 kWh usable.
Your life, with the Discover CAB-426 Cabinet
Your facility stores cheap off-peak or solar energy and uses it when demand charges spike. Your EV chargers keep running without a costly service upgrade. When the grid wobbles, critical loads ride through on stored power.
The Discover CAB-426 Cabinet in a nutshell
426 kWh LiFePO4
416S1P configuration (8 packs at 52S1P), 320 Ah nominal cells, 418 kWh usable.
High voltage DC
1,331.2 V nominal, 1,248 to 1,435.2 V operating, 157 A (C/2) max continuous current.
Outdoor ready
IP55 (NEMA 3R) corrosion-resistant powder coated steel enclosure.
Open integration
Compatible with third-party PCS (including DynaPower and Sinexcel), SCADA and EMS systems.
Discover CAB-426 Cabinet specifications
Electrical
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Model: CAB-426
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Battery configuration: 416S1P (8 packs @ 52S1P)
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Chemistry: Lithium iron phosphate
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Nominal energy: 426 kWh
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Usable energy: 418 kWh
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Max continuous power: 209 kW
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Round-trip efficiency: 94% (25°C, 0.5C)
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System nominal voltage: 1,331.2 V
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System operating voltage: 1,248 to 1,435.2 V
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Cell capacity: 320 Ah nominal, 314 Ah usable
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Max continuous current: 157 A (C/2)
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Internal fuse rating: 315 A
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Auxiliary AC input: 208/240 VAC single phase
Mechanical and environmental
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Dimensions (W x D x H): 1,300 x 1,300 x 2,375 mm (51 x 51 x 93 in)
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Weight: 3,930 kg (8,675 lb)
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Material: Steel, corrosion resistant powder coat
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Thermal management: Integrated liquid chiller/PTC system
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Max TMS power input: 4.5 kW cooling, 3.5 kW heating
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Coolant: 50% water / 50% ethylene glycol
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Chiller refrigerant: R-513A
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Operating temperature: -22 to 131°F (-30 to 55°C)
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Storage temperature: 0 to 110°F (-20 to 45°C)
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Humidity: 0 to 95% non-condensing
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Ingress rating: Outdoor IP55 (NEMA 3R)
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Noise: 75 dB or less at 1 m
Certifications and testing
- UN38.3, UL1973, UL9540A, UL9540 DC ESS, IEC62619, IEC62933, IEC61000
Discover pre-engineered packages
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Dynapower: 1 to 8 CAB-426 cabinets, each with a Dynapower MPS-125 PCS, 480 VAC. From 125 kW / 418 kWh (1 cabinet) to 1,000 kW / 3,344 kWh (8 cabinets).
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Sinexcel: 3 to 8 CAB-426 cabinets with a Sinexcel PCS (690V, 208/480/600 VAC with transformer) and ComAp microgrid controller. From 620 kW / 1,250 kWh to 1,670 kW / 3,340 kWh.
Applications
- Industrial self-consumption and energy arbitrage
- Grid stabilization
- Microgrid and off-grid support
- EV charging support
Let the experts help you find your perfect Discover CAB-426 Cabinet setup
Commercial storage projects need careful PCS matching, site planning and freight coordination. Send us your load profile, PCS choice and site details and we will help you scope the CAB-426 system and quote delivery.
Email support@kratopower.com or call +1 888-855-7286.
Discover CAB-426 Cabinet documents and materials
Safety disclaimer: Commercial battery energy storage systems operate at high DC voltage and store large amounts of energy. Design, installation and commissioning must be carried out by qualified professionals in line with local electrical and fire codes, utility rules and the manufacturer's documentation. You use this product at your own risk. The content on this page is general product information, not professional or medical advice. If you have any doubt, consult a qualified professional.
