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CH BATTERY Fuses — these are specialized cylindrical fuses designed to protect battery packs in DC circuits. They provide fast tripping during short circuits and reliable protection against prolonged overloads, preserving the integrity of conductors, busbars, BMS, and connected equipment in inverter-charger systems, DC/DC converters, energy storage systems (ESS), and telecommunications cabinets.
Key Benefits
- Optimized for Batteries: Correct operation in low-inductance DC circuits with high inrush currents from batteries.
- Speed and selectivity: The fuse insert is designed to limit short-circuit energy, reducing thermal and electrodynamic effects on cables and busbars.
- Compatibility with EFH DC holders: easy mounting on a TH35 DIN rail, versions with trip indication (LED) available.
- Safe maintenance: IP20 protection rating for holders, sealable, replacement only when de-energized (application category DC-20B).
- Compliance with standards: manufactured in accordance with requirements for fuses for DC systems; compatible with ESS/UPS/Telecom circuit solutions.
Applications
- Energy storage systems (ESS) and hybrid PV solutions with batteries.
- Inverter-charger systems, stand-alone and backup power supplies.
- Telecommunications nodes, data centers, industrial DC buses.
- Transportation and mobile energy solutions based on batteries.
Technical Specifications
CH BATTERY Fuses 10×38 — 550/800 V DC
- Dimensions: 10×38 mm.
- Operating voltage: 550 V DC or 800 V DC (depending on the version).
- Breaking capacity: high level for DC circuits (use within the specifications of your model).
- Mounting: EFH 10 DC holder (1/2 poles; optional LED indication).
- Application: battery string branches, protection of branches leading to inverters/chargers, DC buses of the “battery” section.
CH BATTERY Fuses 14×51 — 800 V DC
- Dimensions: 14×51 mm.
- Operating voltage: 800 V DC.
- Breaking capacity: suitable for high fault currents from the battery (refer to the data sheet for the specific model).
- Mounting: EFH 14 DC holder (1/2 poles; optional LED indication).
- Application: protection of high-current branches, ESS main compartments, industrial DC circuits.
Installation and safety
- Perform work only on de-energized equipment; the holders belong to the DC-20B category and are not intended for switching under load.
- Observe the connection direction, the manufacturer’s recommendations regarding cooling, and clearances to adjacent components.
- If possible, use LED trip indication for quick fault diagnosis.
- After replacement, check the cause of the trip, the condition of the cables and terminals, and the parameters of the battery’s charge and discharge modes.
Total-Energo LLC — selection and supply
Total-Energo LLC will help you select the optimal CH BATTERY Fuses for your system, taking into account the ESS/UPS architecture, BMS, short-circuit currents, and standard requirements. We offer official supplies of fuses and EFH 10 DC / EFH 14 DC holders, accessories for pole grouping, as well as technical support during the design, installation, and operation phases.