Product Description
The CM4000 is the controller module in the modular ECS4000 battery system. It comes paired with CS4000 slave modules to form high-voltage battery stacks.
Key Features
- Stackable design, plug and play setup
- High efficiency: 6000+ cycles@90%DOD
- Expandable system, flexible customize to 19.87kWh
- BMS and cable set build-in, no wring cable needed
- IP65, indoor or outdoor installation
- 12.5 years warranty
Features
The FOX ECS CM4000, as part of the scalable ECS4000 lineup, offers:
- Modular scalability: Build systems from ~4 kWh up to ~28 kWh
- High-performance LiFePOâ‚„ chemistry: Long life, safe, stable
- Efficient & certified: >95% round-trip efficiency, UL/IP65 rated
- Plug-and-play: Easy installation with CAN communication and LED indicators
- Durability: Outdoor-rated, 6000+ cycles, 12.5-year warranty
Warranty Information
| Warranty | 12.5 Years |
Product Videos
Product Reviews
Documentation
| Datasheet |
Datasheet_Fox_ESS_US-ECS4000-Datasheet-North-America-Warming-V1.3-20250930
|
| User Manual |
User_Manual_Fox_ESS_USA-ECS4000-Manual-V1.1
|
| Quick Guide |
Quick_Guide_Fox_ESS_USA-ECS4000-Guide-V1.1
|
| Certification |
Certification_Fox_ESS_UL9540
|
| Test Report |
Test_Report_Fox_ESS_ECS4000-UL9540A
|
| Warranty |
Warranty_Fox_ESS_US-Series-EN-US-ECS4000-HUB-Warranty-20250707
|
Specs
| Battery Capacity | 4 kWh |
| Battery Chemistry | LiFePO4 |
| Operation Temperature | -25C to 55C |
| Heated | Yes |
| Enclosure Rating | NEMA 4X |
| Certification | UL9540 |
| Tested to | UL9540A |
| Mounting | Floor Mounted |
Shipping Dimensions
| Weight: | 81.50 LBS |
| Width: | 57.00 (cm) |
| Height: | 35.00 (cm) |
| Depth: | 38.00 (cm) |
