Page 14 - Ferraz semiconductor DIN

Semiconductor fuses
Semiconductor (AC) fuses

®
Protistor Square-body Fuses
PSC gGR sizes 000/00
gGR - 690 VAC DIN 00/000 (full range)

gGr: two functions

A combination of:
Power supply cable protection (gG curve)

• Compliance with the standardized gate values for gG
F : Réf. D302108
curves as per EN 60269-2,
MC: Réf. F210156C
• Low power dissipation, similar to a gG fuse, no current
derating in holders,
• No derating for variable currents,
• Good withstand to overloads,
• Same thermal definition as a gG curve,
• Unnecessary to dimension the cable cross sectional area large in
comparison to UR protection,
• Range designed for the new voltage of 690V ± 10%.

Power semi-conductor protection (Fast R curve)

F : Réf. G330286C • Fast curve for fault currents and short-circuit currents under 20 In,
PF : Réf. Q098040C
• Tested breaking capacity 100 kA (00) or 170 kA (000) at 690 V,
MC: Réf. F210156C
• Very current limiting, which in turn limits electrodynamic forces in
the circuit downstream,
2
• Low I t
• Compact footprint: only one fuse instead of two or a relay plus a
fuse,
• DC performances 360 to 550V for I/R = 10 ms,
Semi-conductor protection checked in the same way as a fuse.

Applications: "off-board" protection

• AC and DC speed governor,
• Soft starter,
• Static relay,
• Current regulator,
• Inverter (IGBT module disconnector in parallel),
Battery.

Connection technologies offered

• Solid blades (as per DIN 43620) with visual blown fuse indicator and striker to actuate a micros-
witch, MS4L2-5B + PRES (ref. F210156C or G210157C),
• DIN 80 brackets (as per DIN 43653) with visual blown fuse indicator and striker indicator to actuate
a microswitch, MS4L2-5B + PRES.
• With these two technologies the designer can choose a fuse according to the types of holders desired.

SCAC60 12/04