ENSE 261H-2H Smart BESS

Product Overview

The ENSE 261H-2H is a compact smart BESS with a no-HV-box design that reduces footprint to only 1.3 m². It integrates a 125 kW PCS and a 261 kWh LFP battery system (1P260S, 3.2 V/314 Ah cells) in a floor-standing cabinet with IP55 protection.

The off-grid mode supports 100% three-phase unbalanced load with 110% continuous overload and 120% for 10 minutes. The liquid cooling system maintains cell temperature differences within 2.5 °C for optimal battery life. Cloud-based EMS provides cell-level monitoring and diagnostics.

Key Features

• No HV box design, compact structure
• Footprint of only 1.3 m²
• 100% three-phase unbalanced off-grid output
• Liquid cooling, cell temp difference ≤2.5 °C
• Cloud platform cell-level monitoring
• 261 kWh LFP battery, 1P260S, 3.2 V/314 Ah cells
• 832 V nominal battery voltage (728-936 V)
• 125 kW rated output, 150 kVA max off-grid
• 110% continuous, 120% for 10 min overload
• 0.5P charge rate, 90% DOD
• Perfluorohexanone + water fire suppression
• RS485 / CAN communication
• IP55 protection rating
• 5-year warranty

Technical Specifications

DC Battery Parameters

Cell type	LFP 3.2 V / 314 Ah
Battery PACK configuration	52.24 kWh / 1P52S
Battery system configuration	261 kWh / 1P260S
Rated battery voltage	832 V
Battery voltage range	728-936 V

AC Output (Grid-Tied)

Rated output power	125 kW
Maximum output apparent power	137.5 kVA
Rated output voltage	380 V / 400 V
AC wiring type	3P3W+PE / 3P4W+PE
Rated grid frequency	50 Hz / 60 Hz
Maximum output current	198.5 A @400 V / 208.9 A @380 V
Power factor (rated)	>0.99
Power factor adjustment range	-1 to +1

AC Output (Off-Grid)

Rated output power	125 kW
Maximum output apparent power	150 kVA
Overload capability	≤110% continuous; 110-120% for 10 min; >120% for 200 ms
Rated output voltage	220/230/240 V (L-N), 380/400/415 V (L-L)
Rated output frequency	50 Hz / 60 Hz
Maximum output current	227.3 A
THDv	<3% (linear full load)
Load unbalance	100% three-phase unbalance

General Data and Certification

Dimensions (W × H × D)	1000 × 2200 × 1300 mm
Weight	~2400 kg
Operating temperature range	-20 °C to +50 °C
Relative humidity	0-95% RH, non-condensing
Maximum operating altitude	≤2000 m
Protection rating	IP55
Topology	Transformerless
Cooling	PACK: liquid / PCS: air
Charge / discharge rate	≤0.5P
Depth of discharge	90% DOD
Fire suppression	Perfluorohexanone + water fire
Communication	RS485 / CAN
Warranty	5 years
Certification	PCS: GB/T 34120; Battery: GB/T 36276, GB/T 34131

Applications

The ENSE 261H-2H is designed for commercial and industrial projects requiring compact footprint, liquid cooling and reliable off-grid performance.

• Commercial and industrial PV with storage
• Compact installations with limited space
• Backup power with unbalanced loads
• Peak-shaving and demand charge reduction
• Self-consumption optimisation

OEM & Custom Requirements

Project supply and private-label requirements can be confirmed against the standard ENSE 261H-2H platform. Share the required battery configuration and destination market.

• Private-label enclosure and documentation
• Battery interface configuration
• Manual localisation for the target market
• Packaging and delivery planning