Power Fuses :
  SPM-20B

SPECIFICATION OF POWER FUSE

TYPE SPM-20B
RATED VOLTAGE 23.0KV
MAX DES. VOLTAGE 25.8KV
RATED FREQUENCY 60Hz
(RMS)
Rated continuous currents
Fuse supports 200A
Fuse units 1, 3, 6, 8, 10, 12, 15, 20, 25, 30, 40, 50, 65, 80, 100, 125, 140, 200A
(RMS)
Rated max. int. currents
ASYM. int. currents 20KA
SYM. int. currents 12.5KA
Normal frequency withstand voltage Terminal ground Dry 60KV
Terminal - Terminal 66KV
(1.2/50)
Impulse withstand voltage
Terminal - Ground 125KV
Terminal - Terminal 138KV
FAULT CLOSING 12kA AT 15.5kV
INTERRUPTING CAPACITY 12.5kA AT 28.8kV

    

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