DC Miniature Circuit Breaker TDM8-DC

Technical Data

Installation

Combination with accessories

Core Functions

Overload Protection: It conducts real-time monitoring of load current. In scenarios where equipment overload leads to current exceeding the safe rated value (for instance, when an excessive number of devices are connected), this function activates promptly to cut off the circuit. This effectively prevents wires or components from overheating, thus avoiding the risk of equipment damage or fire.​
Short-Circuit Protection: It delivers an immediate response to short-circuit faults (which may be caused by issues like wire insulation damage). Once a short circuit occurs—characterized by extremely high current—the function acts instantly to disconnect the circuit. This provides reliable protection for the power supply system and connected equipment, shielding them from severe damage.​

Product Features​

Specialized DC Arc-Extinguishing Technology: This technology efficiently suppresses and extinguishes arcs produced during DC circuit breaking. By doing so, it prevents arc-induced burning of contacts, ensures stable circuit-breaking performance, extends the product's service life, and further enhances operational safety.​
Broad Voltage and Current Rating Range: The product offers a variety of voltage (e.g., low to medium DC voltages) and current specifications. It can adapt to diverse application scenarios, such as industrial DC power supplies and new energy systems. This reduces the need for preparing multiple product models and significantly improves the product's versatility.​

Main Application Areas​

Solar Photovoltaic Power Generation Systems: Used to protect the series/parallel circuits of solar panels and the output circuits of DC combiner boxes.​
Energy Storage Systems (ESS) and Battery Banks: Provides protection for the charge and discharge circuits of batteries like lithium-ion batteries and lead-acid batteries.​
Electric Vehicle Charging Infrastructure: Applied in the internal circuit protection of DC charging piles.​
Rail Transportation and Marine Power Systems: Offers protection for DC power systems used in trains, subways, and ships.