Technical Description of EXE122008L1B VCB 12kV 20kA 800A 210 SCHNEIDER

Introduction: The Schneider vacuum circuit breaker EXE122008L1B VCB 12kV 20kA 800A 210 is a crucial device in electrical systems, designed to effectively protect installations against short circuits and overloads. This circuit breaker offers an optimal combination of performance, safety, and durability, making it ideal for industrial and commercial applications.

Technical Features

• Nominal voltage: 12 kV
• Current nominal breaking capacity: 20 kA
• Current nominal closing capacity: 800 A
• Nominal current breaking time: 210 ms
• Supply frequency: 50/60 Hz
• Circuit breaker nominal short-circuit breaking capacity: 20 kA
• Non-disruptive lightning voltage nominal: 42/48 kV (phase-to-phase, ground/breakdown)
• Nominal short-circuit current voltage: 12.5 kA
• Nominal short-circuit breaking duration: 1 minute
• Dynamic and static contacts: Allow for accumulated wear over time
• Energy storage time: Not specified
• Contact opening distance: Not specified
• Time of contact closure bounce: Not specified
• Operation window: Divided into three phases/period closed
• Average opening speed (contacts separated by -8mm): Not specified
• Main loop resistance: ≤50 Ω (630 A), ≤45 Ω (1250 A), ≤40 Ω (1600, 2000 A), ≤35 Ω (2500 A or more)

Advantages

• High safety: Designed to effectively protect against short circuits and overloads.
• Reliable performance: 20 kA nominal current breaking capacity ensures necessary protection in electrical installations.
• Durability: Dynamic and static contacts allow for controlled wear, increasing the lifespan of the circuit breaker.