The working principle of STMD molded case circuit breaker adopts heat release contacts. When the current exceeds the rated value, the contacts are heated, causing the spring force to decrease, ultimately causing the contacts to move away from the contacts and cut off the power supply.
The STMD series is suitable for home, commercial, and industrial electrical systems, commonly used for the protection of AC power lines and terminal equipment, such as distribution boxes, air conditioners, lighting equipment, motors, etc. In addition, molded case circuit breakers can also be used for circuit protection in high-temperature, humid, and explosive environments.
| Categories | MCCB |
| Model | STM6DC |
| Rated current(A) | 10-1250A |
| Rated operating voltage(Ue) | DC250V,DC500V,DC750V,DC1000V |
| Rated Insulation Voltage(Ui) | DC1000V |
| Rated impact withstand voltage(Uimp) | 8kV |
| Product name | STM6DC |
| Rated limit short circuit capacity | 50 |
| Rated operatingshort circuit capacity | 35 |
| Pole | 2P, 3p, 4p |
| website | www.sofielec.com |
| Brand | sofielec |
Product show
> Does Your Electrical System Need a Contactor?
This device is vital in electrical setups, but many wonder when it’s necessary. Let’s simplify when a contactor makes sense for your system.
> What's the Right Circuit Breaker for Different Household Electrical Scenarios?
Choosing a household circuit breaker isn't one-size-fits-all. A breaker that works for bedroom lights may not be safe for kitchen appliances, and one for dry spaces ...
> What Key Factors Should You Consider When Choosing a Relay for Low-Voltage Electrical Systems?
In low-voltage electrical systems—whether for residential smart homes or small commercial setups—devices that manage current flow safely are critical. One component ...
> Worried About Lightning Damaging Your Equipment? Use SPD Surge Protective Device to Protect It
Summer thunderstorms, lightning-induced power surges, and even large appliance startups can send harmful voltage spikes through your electrical system. These spikes ...