ESS-1000-125A
1000VDC 125A compact fuse for residential and small commercial energy storage with 50kA breaking capacity.
Product Overview
Description
The ESS-1000-125A is designed for residential and small commercial battery energy storage systems.
With 1000VDC rating and 125A current, this fuse is ideal for home battery systems and small commercial installations.
The compact Size 1 body fits in space-constrained residential electrical panels.
Product Series
ESS
Primary Application
Residential battery energy storage
Key Features
- 1000VDC rating for residential and small commercial BESS
- 125A rating for typical home battery systems
- 50kA breaking capacity for residential battery protection
- Compact Size 1 for panel installations
- Time-delay for inverter startup protection
- Cost-effective for residential applications
Specifications
| Voltage Rating | 1000V DC |
|---|---|
| Current Rating | 125A |
| Breaking Capacity | 50kA @ 1000V DC |
| Size | Size 1 (51mm body) |
| Mounting | Bolt-on M8 terminals |
| Operating Temperature | -40°C to +85°C |
| Time-Current | Time-delay |
| Standards | UL 248-13, IEC 60269-7 |
Applications
Residential battery energy storage
Battery and charging management
Home solar+storage systems
Renewable energy systems
Small commercial BESS
Electronic system design
Backup power systems
Electronic system design
Residential microgrids
Electronic system design
FAE Expert Insights
"The ESS-1000-125A is perfect for residential battery installations. The 125A rating handles typical 10-20kW home battery inverters while the 1000V rating supports modern high-voltage home battery systems. The compact Size 1 body fits in standard electrical panels without modifications. The time-delay characteristic prevents nuisance blowing during inverter startup - a common issue I've seen with fast-acting fuses in residential installations. This fuse is cost-effective for the high volumes typical in residential solar+storage markets."
Compact 1000V/125A fuse ideal for residential battery energy storage
— Jennifer Liu, BeiLuo
Frequently Asked Questions
Is 125A sufficient for typical home battery systems?
Yes, 125A is sufficient for most residential battery systems: 1) Typical home batteries: 10-20kWh with 5-10kW inverters; 2) At 400V battery voltage, 10kW = 25A; 3) At 1000V, 10kW = 10A; 4) With 1.25x safety factor: 31A at 400V or 12.5A at 1000V; 5) 125A provides 4x margin at 400V or 10x at 1000V. Even for large 20kW systems, 125A provides adequate margin. Only very large homes with multiple battery units need higher ratings.
125A sufficient for typical residential systems up to 20kW. Calculate based on actual inverter power.