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China PU/ESS Fuses from Suppliers and Factory for Energy Storage and System Protection
AEP 32/65Vdc ESS Fuse
Rated Current: 20A – 200A | Breaking Capacity: up to 1.5 kA
Product Description
AEP series ESS fuses are engineered and manufactured for use in Industrial ESS and Power Distribution Protection, made from the highest quality materials and tested to the highest standards. With rated currents from 20A to 200A with a breaking capacity of 1.5kA.
Product Characteristics
- 65 Vdc / 32 Vdc ESS fuse
- Rated Current: 20–200 A
- Operating Temperature: -40 to 125°C
- Breaking Capacity: 1.0 kA at 65 Vdc (20–125A) | 1.5 kA at 32 Vdc (20–200A)
- Installation Method: M5/M6 bolt installation
- Torque: M5: 2.5±0.5 N·m | M6: 2.5±0.5 N·m
- Recommended fuse holder: BHR030-15-M5
EFT 63/85/125/150/200 Vdc ESS Fuse
Rated Current: 100A – 500A | Breaking Capacity: up to 20 kA
Product Description
EFT series ESS fuses are engineered and manufactured for use in Industrial ESS and Power Distribution Protection, made from the highest quality materials and tested to the highest standards. With rated currents from 100A to 500A with a breaking capacity of 20kA.
Product Characteristics
- Main Body: Ceramic
- Reliable clearing of DC fault currents
- Low watt losses
- Ultra-compact size and power density
- High breaking capacity to 20 kA
- For Short Circuit Protection
AEY 70 Vdc ESS Fuse
Rated Current: 40A – 500A | Breaking Capacity: 2.5 kA at 70 Vdc
Product Description
AEY series ESS fuses are engineered and manufactured for use in Industrial ESS and Power Distribution Protection, made from the highest quality materials and tested to the highest standards. With rated currents from 10A to 500A with a breaking capacity of 2.5kA.
Product Characteristics
- 70 Vdc ESS fuse
- Rated Current: 40–500 A
- Operating Temperature: -40 to 125°C
- Rated Breaking Capacity: 2.5 kA at 70 Vdc
- Bolt Size: M8 | Torque: M8: 12 N·m
- Recommended fuse holders: BHR059-25-M8, BHR051-25-M8, BHR050-25-M8
Frequently Asked Questions
What is the difference between the AEP, EFT, and AEY ESS fuse series?
The AEP series operates at 32/65 Vdc with rated currents from 20A to 200A and a breaking capacity up to 1.5 kA, making it suitable for lower-voltage ESS applications. The EFT series supports a wider voltage range (63–200 Vdc) with currents from 100A to 500A and a high breaking capacity of 20 kA, ideal for heavy-duty industrial systems. The AEY series is rated at 70 Vdc with currents from 40A to 500A and a 2.5 kA breaking capacity, offering a balance between compact design and robust protection.
What applications are these ESS fuses designed for?
All three series — AEP, EFT, and AEY — are specifically engineered for Industrial Energy Storage Systems (ESS) and Power Distribution Protection. They are designed to provide reliable short-circuit protection in DC power systems, battery energy storage installations, and related industrial power distribution equipment.
What operating temperature range do these fuses support?
The AEP and AEY series ESS fuses are both rated for an operating temperature range of -40°C to +125°C, making them suitable for use in demanding environments with extreme temperature variations. The EFT series is similarly built to industrial standards with high thermal tolerance.
What installation hardware is required for these ESS fuses?
The AEP series uses M5 or M6 bolt installation with a torque of 2.5±0.5 N·m for both bolt sizes, and is compatible with the BHR030-15-M5 fuse holder. The AEY series uses M8 bolts with a torque of 12 N·m and is compatible with fuse holders BHR059-25-M8, BHR051-25-M8, and BHR050-25-M8. The EFT series features an ultra-compact ceramic body designed for easy integration into existing power distribution enclosures.
Why is a high breaking capacity important in ESS fuses?
A high breaking capacity ensures the fuse can safely interrupt large fault currents without causing arc flash, fire, or damage to connected equipment. In industrial ESS environments, fault currents can be very high due to large battery banks and low impedance circuits. The EFT series, for example, offers up to 20 kA breaking capacity, providing a critical safety margin for high-energy storage systems.
Are these ESS fuses suitable for use in renewable energy and battery storage systems?
Yes. The AEP, EFT, and AEY series fuses are well-suited for renewable energy applications including solar power storage, grid-scale battery systems, and backup power installations. Their DC voltage ratings, wide current ranges, and high breaking capacities make them a reliable choice for protecting battery management systems and DC bus infrastructure in both commercial and industrial renewable energy projects.