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General specifications

Output specifications (load) (Ta=25 °C)
ModelsTZA-40AFTZA-60AFTZA-80AF
Thyristor typeDual SCR back to back
Overvoltage protectionNo
Load voltage range48~530 VAC
Operational frequency range47~63 Hz
Min. power factor (cos φ)0,5
Transient over-voltage, non-repetitive1200 Vpk
Rated load current, resistive (AC-51 @ Ta=25 °C) [IEC 60947-4-3]40 A60 A80 A
Min. operational current100 mA
Transient over-current, non-repetitive (8,3ms)756 Apk972 Apk1350 Apk
Transient over-current, non-repetitive (10ms)700 Apk900 Apk1250 Apk
Max. I²t value for fusing - thyristor limit (8,3ms)2381 A²s3936 A²s7593 A²s
Max. I²t value for fusing - thyristor limit (10ms)2450 A²s4050 A²s7800 A²s
Max. off-state leakage current10 mA
Typ. on-state voltage drop @ rated current1,1 Vrms
Max. on-state voltage drop @ rated current1,7 Vrms
Max. turn-on time20 ms
Max. turn-off time40 ms
Min. critical dV/dt (off-state)1000 V/µS