protect / Circuit-breakers with residual current protection (CBR)

Circuit-breakers with integral residual current protection, 4-pole, 250 A, Type A, adjustable

Circuit-breakers with residual current trip (CBR), 4-pole, compact design, with contact system limited by short-circuit current, with adjustable thermomagnetic trips, with rocker arm and 3 switch positions (off, tripped and on), as per IEC/EN 60947-2, DIN VDE 0660

Residual current type: A
Rated residual current I&Delta;n: 0.3 A, 0.5 A, 1 A, 3 A

short-time delayed (lightning-resistant)
selective design
Neutral conductor position: left
Rated operating voltage: 690 V AC
Operating frequency: 50 Hz
Rated impulse withstand voltage: 8 kV
Rated continuous current: 250 A
Rated short-circuit disconnecting capacity (690 V AC): 20 kA
Operating voltage: min. -25 °C ... max. 70 °C
Mechanical endurance: 2000 switching cycles
Electrical endurance AC-1: 7500 cycles
Overload trip: 0.8 - 1 x Ir
Instantaneous short-circuit trip Ii: 6 - 10 x Iu
Integrated auxiliary switch: 1 NO, 1 NC, 0 CO

box terminal top and bottom (load circuit):
Clamping area: min. 4 mm² ... max. 185 mm²
Cross section solid: 1-wire: 4 mm² ... 16 mm²; 2-wire: 4 mm² ... 16 mm²
Cross section stranded: 1-wire: 25 mm² ... 185 mm²; 2-wire: 25 mm² ... 70 mm²

Housing type: wall-mounted housing
Installation type: Wall mounting
Protection class: IP20 (installed: IP40)
Dimensions of transformer opening: W 140 mm × H 291 mm × D 103 mm

Design requirements/Standards: DIN IEC 60755, EN 60947-2, EN 60947-2 Annex B, VDE 0660-101

Factory: Doepke or similar
Item designation: DFL 8 250-4/X-A
Order number: 09219781
selected make/type: ___________/___________