Page 229 - Ferraz semiconductor DIN

Semiconductor fuses
Semiconductor (AC) fuses

Protistor Square-body Fuses
®
PSC aR sizes 3x - 450V to 700 VAC
Microswitches PSC 3x &7x

- MICROSWITCH SYSTEMS ADAPTED

TO THE FOLLOWING FERRAZ SHAWMUT FUSES ONLY:
- PSC sizes 30, 31, 32, 33, 2x32, 2x33 / 70, 71, 72, 73, 272, 273
except plain blades

- PSC LR sizes 33, 233, 73, 273
- PERMANENT INDICATION OF FUSE STATE: CONDUCTIVE MS 7V 1-5

BLOWN
- MANUAL RESETTING
- STANDARD AND LOW ELECTRICAL LEVEL WITH DIFFERENT INSULATION LEVELS

- BS TYPE FOR USE IN CORROSIVE ATMOSPHERE
- MS 3V 1-5 UR AND MS 7V 1-5 UR TYPE UL ARE RECOGNIZED

Main Characteristics

AC Breaking Capacity AC voltage Impulse
Insulation Positive Current withstand voltage test Fire class
Code voltage operating Non inductive circuit Inductive circuit : L/R = 25ms test Uimp1.2/50 according
rating voltage/current rating Current µs to UL 94
(***) 30V 110V 250V 30V 110V 250V (*) (**)
MS 3V 1-5 50/60 Hz 10 A 10 A 10 A 10 A 10 A 10 A 8,5 kV 14 kV
MS 3V 1-5 UR 1000 V 20 V
10 A
MS 7V 1-5 50 mA
1500V
MS 7V 1-5 UR DC 8 A 0,4 A 0,2 A 4 A 0,2 A 0,1 A 12 kV 20 kV
MS 3V 1-5 BS 50/60 Hz 3 A 3 A 3 A 2 A 1 A 1 A 8,5 kV 14 kV H.B
1000 V
MS 3V 1-9 BS 10 V
3 A
MS 7V 1-5 BS 10 mA DC 3 A 0,5 A 0,25 A 3 A 0,2 A 0,1 A 12 kV 20 kV
1500V
MS 7V 1-9 BS
MS 3V 1-5 ET 1000V 10 V 50/60 Hz 3 A 3 A 3 A 2 A 1 A 1 A 8,5 kV 14 kV
3 A
MS 7V 1-5 ET 1500V 10 mA DC 3 A 0,5 A - 2 A 0,2 A - 12 kV 20 kV
* Between power circuit and microswitch terminals as per IEC 60 and 694 and NFC 64010 (50/60 Hz 1 min duration in dry air)
** Between power circuit and microswitch terminals Uimp: impulse voltage as per IEC 60947-1
*** Between power circuit and microswitch terminals

Warning: microswitch systems exclusively designed for FERRAZ SHAWMUT.
PSC Fuses fitted a petented trip-indicator, saving use of EDV

SCAC92 12/04