DC Miniature Circuit Breaker TDM3-DC

Technical Data

Installation

Combination with accessories

Overall and mounting dimensioned chart

Product Introduction

As the core protection equipment of DC distribution and power consumption systems, Talemod DC MCB builds a safety defense line for DC circuits with precise current monitoring and fast breaking capabilities. By intervening in abnormal currents, it avoids safety hazards caused by circuit faults, ensuring system stability and

Core function

Dealing with circuit abnormalities and safeguarding safety

1. Overload protection function
In response to abnormal current caused by circuit load exceeding the rated value, monitoring is carried out through built-in thermal sensing components (such as bimetallic strips): when the current continues to overload, the thermal deformation of the component triggers the mechanism to act and cut off the circuit. Adopting the "inverse time characteristic", the larger the overload current, the shorter the action time, balancing anti misoperation and fast protection to avoid overheating and damage to the circuit. ​
2. Short circuit protection function
To deal with short circuits caused by insulation damage, equipment failures, etc. (instantaneous current surges of tens to hundreds of times), relying on electromagnetic induction components (such as electromagnetic coils) to quickly respond: strong magnetic field drive mechanism, millisecond level (<0.1 seconds) circuit cut-off, reducing fault impact and losses. ​

Product features

Suitable for DC scenarios, enhanced performance

1. Specialized DC arc extinguishing technology
In response to the problem of difficult extinguishing of DC arcs, a combination technology of "multi longitudinal seam arc extinguishing chamber+magnetic extinguishing arc" is adopted: dividing long arcs, accelerating cooling extinguishing, adapting to different voltage levels such as 250V-1000V DC, etc., to improve the breaking capacity and service life. ​
2. Wide range voltage and current ratings
The voltage covers 12V DC (low-voltage energy storage) -1500V DC (high-voltage photovoltaic/energy storage), and the current covers 6A (low-power circuit) -250A (high-power main circuit), without customization, suitable for different scenarios, ensuring precise matching of parameters and circuit requirements. ​

Main application areas

Suitable for multi industry DC systems

1. Solar photovoltaic power generation system
Component series/parallel circuit: protects single channel components to prevent fault propagation; ​
DC combiner box output terminal: guarding the combiner box and inverter to reduce power generation losses. ​
2. Energy Storage System (ESS) and Battery Pack
Charging and discharging circuit: prevents overcharging, overdischarging, and short circuiting of the battery, extending its lifespan; ​
Battery cluster level protection: isolates faulty battery clusters to ensure the stability of energy storage stations. ​
3. Electric vehicle charging infrastructure
Power module circuit: protect the core components of the charging station to avoid equipment failure; ​
Charging gun output circuit: prevent short circuit damage to equipment and ensure personnel safety. ​
4. Rail Transit and Ship Power System
Rail transit traction system: protect the traction circuit to ensure the normal operation of the train; ​
Ship DC system: provides protection for key equipment circuits such as navigation and propulsion, ensuring navigation safety.