Sentinal 233 | Sentinal 261 C&I Energy Storage Cabinet Liquid-Cooled | 105kW/125kW | 233kWh/261kWh ZTTEK Sentinal Cabinet BESS delivers high-density, liquid-cooled energy storage for commercial and industrial sites requiring reliable power management and flexible expansion. Available in 105 kW/233 kWh and 125 kW/261 kWh, the system supports grid-connected, off-grid, and hybrid ESS deployments.

High Energy Density with Compact Cabinet Design

The Sentinal C&I BESS integrates high-capacity 314 Ah LFP battery packs within a compact cabinet form factor, enabling efficient use of installation space without sacrificing system performance.
- Available energy capacities: 233 kWh or 261 kWh per cabinet
- Cabinet dimensions: 970 × 1400 × 2270 mm (±10 mm)
- Optimized internal layout for maximum volumetric energy density
- Nominal system voltage: 832 V (1P52S pack configuration)
Ideal for C&I sites with space constraints that still require substantial dispatchable energy capacity.

Liquid Cooling System for Stable Operation

Thermal management is critical to battery longevity and system reliability. The Sentinal BESS uses a dedicated liquid cooling architecture to ensure stable cell temperatures across all operating conditions.
- Uniform temperature distribution across battery packs
- Reduced temperature fluctuation during sustained charge/discharge cycles
- Operating temperature range: -20°C to 50°C
- Liquid cooling reduces thermal stress, supporting extended battery service life
Unlike conventional air-cooled energy storage systems, liquid cooling maintains consistent cell conditions even in high-ambient or high-throughput environments.

High Performance Power Output

The Sentinal Cabinet BESS delivers clean, high-quality AC power suitable for demanding commercial and industrial loads.
- Rated AC power: 105 kW (ZT-CESS-105/233) / 125 kW (ZT-CESS-125/261)
- Peak power: 116 kW / 137 kW respectively
- Grid voltage: 230 / 400 V (3-phase)
- Grid frequency: 50 / 60 Hz
- Power factor range: -1 to +1 (fully adjustable)
- Grid-connected current THD: <3%
- Voltage range tolerance: -10% to +15%

Advanced Fire Protection and Safety Design

Safety is built into every layer of the Sentinal BESS design. The system incorporates a comprehensive, multi-tier safety architecture suitable for commercial and industrial deployment:
- Multi-level fire suppression at Cluster- and PACK-Level
- Suppression agents: Perfluorohexanone or Aerosol (selectable)
- Physical separation of electrical and hydraulic subsystems to minimize cross-failure risk
- IP54 enclosure rating for outdoor and semi-outdoor installation
The system is designed to contain and suppress thermal events at the earliest stage, protecting both personnel and property.

Scalable Architecture — Grow With Your Project

The modular cabinet design allows system capacity to be scaled in line with project evolution.
- Multi-cabinet parallel operation supported
- Off-grid: up to 6 units in parallel
- On-grid: greater capacity achievable
- Compatible with phased investment and future expansion plans
- Suitable for single-site to campus-scale deployments
The Sentinal BESS architecture is designed so that adding a new cabinet is straightforward — no system redesign required.

Integrated EMS with Open Communication

Each Sentinal Cabinet BESS includes a built-in Energy Management System (EMS) that enables local operation, real-time monitoring, and remote diagnostics.
- Integrated EMS for autonomous system control and scheduling
- Real-time monitoring, event logging, and alarm management
- Standard communication interfaces: RS485, CAN
- Compatible with third-party EMS platforms
- Supports energy management strategies including peak shaving, arbitrage, and self-consumption optimization
Open integration standards ensure flexibility for system designers and operators working across diverse project environments.

Applications

Peak Shaving & Demand Management

Reduce peak demand charges and shift loads to off-peak tariff windows.

PV Self-Consumption

Maximize on-site solar utilization and reduce grid import.

Energy Arbitrage

Store low-cost energy and discharge at peak price periods.

Microgrid & Energy Sharing

Enable site-level energy independence and multi-tenant sharing.

Datasheet

Sentinal 261.PDF