Molded case circuit breaker, use for system protection

• Rated current In: 250 A
• Rated operational voltage Ue: AC 690 V
• Rated operational frequency: 50/60 Hz
• Rated operational short-circuit breaking capacity Icu:
  55 kA at 415 V
  3 kA at 690 V
• Rated operational short-circuit breaking capacity Ics:
  55 kA at 415 V
• Rated short-circuit making capacity Icm:
  121 kA at 415 V

ETU electronic trip unit, LSIG-function, fine setting of parameters via display,

4-pole

Vector sum of L1+L2+L3

• overload protection L:
  Ir = 100 A up to 250 A
  tR = 0.5 s up to 15 s
• short-time delayed short-circuit protection S :
  Can be switched On/Off and switchable from standard to I2t characteristic for better selectivity adjustment to downstream fuses,
  Reduction of cable cross-sections through optimum adjustment of the trip unit
  Isd (standard) = 150 A up to 2500 A
  Isd (I2t) = 150 A up to 2500 A
  tsd = 0 up to 500 ms
• Instantaneous short-circuit protection I:
  Ii = 375 A up to 2500 A
• ground-fault protection G:
  Ig = 50 A up to 250 A
  tg = 0.05 s up to 0.8 s

LED display for

• operational readiness of the breaker
• overtemperature alarm
• overload alarm at 0.9 x Ir and 1.05 x Ir
• monitoring of communication between breaker and breaker data server

• remote parameterization via communication and/or connected notebook
• recording of phase currents
• Status of breaker and event buffer is recorded and displayed/signaled

Diverse communication options e.g. for

• parameterization within the scope of commissioning
• Status messages/alarm indications & reason for tripping plant monitoring

via

• integrated Ethernet interface in the communication module 10/100Mbit (Modbus TCP)
• Optional slots for
  expansion module SWITCHED ETHERNET PROFINET
  expansion module PROFIBUS DP V1
  expansion module RS485 Modbus RTU

Optional expansion by residual current devices for fault currents from 30 mA to 10 A (type A) or 30 A (type AC).

Permissible ambient temperature: -25 °C up to 70 °C

fixed mounting

Main current contacts: on both sides nut keeper kit