Industrial circuit breaker 3P | 250A | 50kA | FMC4/3U Promfactor Baltic FMC43U0250

Technical Specifications:

Standard: IEC/EN 60947-2
Rated disconnecting current (Ie): 250 A
Operating frequency: 50/60 Hz
Insulation voltage (Ui): 800 V
Rated operating voltage (Ue): ~690 V
Impulse voltage (Uimp): 8000 V
Number of poles: 3
Rated operational breaking capacity (Ics) (AC 380/415V): 25 kA
Maximum operational breaking capacity (Icu) (AC 380/415V): 50 kA
Electrical and mechanical endurance: 1,500 cycles / 5,000 cycles
Auxiliary equipment connection: Yes
Operating ambient temperature: -25…+55 °C
Storage temperature: -25…+70 °C
Altitude above sea level: 2000 m
Weight: 4.90 kg

Functions:

Short-circuit protection: Ensures quick and reliable network protection during a short circuit.
Overload protection: Protects electrical devices from long-term overload.
Quick switching on/off: Enables efficient control of electrical circuits by performing network switching.
High breaking capacity: Allows the use of the switch in high-power industrial equipment.
Support for additional equipment: Ability to connect additional accessories and modules.
Durability: Resistant to temperature fluctuations and mechanical impacts, ensuring long service life even under complex conditions.

Applications:

Industrial electrical distribution systems
Factories and logistics centers
Commercial buildings and infrastructure facilities
High-power electrical networks
Electrical panels and automatic control systems

Advantages:

High breaking capacity ensures greater safety
Resistance to electrical and mechanical impact
Wide operating temperature range (-25…+55°C)
Possibility to connect additional equipment
Complies with international safety standards (IEC/EN 60947-2)

Disadvantages:

Heavy weight may require strong mounting
Higher price compared to lower-power switches
Requires professional installation and maintenance

The automatic circuit breaker is an excellent choice for industrial use when a high level of reliability and protection is required. Its versatility, durability, and functionality ensure safe operation of the electrical network even in complex conditions.