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air circuit breaker schneider

Intelligent Air Circuit Breaker

BLTW1-2000
BLTW1 series intelligent Air circuit breaker (hereinafter referred to as circuit breaker), suitable for AC 50Hz rated working voltage AC400V, AC690V, rated working current 200-6300A distribution network, used to distribute power and protect lines and power equipment from overload, undervoltage, short circuit, grounding and other faults. The circuit breaker with rated current below 1000A can also be used for motor infrequent start. The circuit breaker has a high precision selective protection, which can improve the reliability and safety of power supply and avoid unnecessary power outage.
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BLTW1-2000 Air circuit breaker

BLTW1 series is widely used in power supply and civil buildings such as high-end office buildings, commercial complexes, residences, and hotels. Its intelligent and communicable functions can provide support and assistance for building smarter, more efficient, and greener smart power systems.

Overcurrent protection features
Overcurrent protection is composed of phase line overcurrent protection and neutral line overcurrent protection (four pole circuit breaker and three pole circuit breaker with neutral pole current transformer with neutral line overcurrent protection, three pole transformer external connection), phase line overcurrent protection current and time parameters are generally adjusted by the manufacturer according to user requirements (users can also adjust themselves), Neutral line overcurrent protection The current and time parameters are automatically adjusted proportionally to the tripping characteristics of phase line protection parameters. The ratio is selected by the user, that is, the N-pole IN is 50% In or 100% In.
Overload protection
  • Overload long delay inverse time protection, setting current Ir1(Ir) adjustable;
  • Overload long delay Delay time t1(tr) is adjustable.
Short circuit delay protection
  • Short circuit short delay inverse time protection (t ON), setting current Ir2 adjustable,
  • Short-circuit short-delay fixed time protection (It OFF), setting current Ir2 adjustable,
  • Short circuit delay delay time t2(Tsd) is adjustable.
Note: The short-circuit short-delay fixed time protection current setting value can be set separately except the default bit 8ir1 value of the M-type controller, but the setting value must be >Ir2(Is);
Short circuit instantaneous protection
Short-circuit instantaneous (turn-off) current setting Ir3(Ii) adjustable.
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