Page 121 - Ferraz semiconductor DIN

Semiconductor fuses
Semiconductor (AC) fuses

®
Protistor Square-body Fuses
NH Plain Blades - 690 VAC
aR - 690 VAC sizes 000 to 3

Ferraz Shawmut PSC-URD 690 VAC fuse-links provide
maximum flexibility in equipment design and ultimate protection
for today’s power conversion equipment. This range is a fast
acting, engineered to provide state of the art protection for
power semiconductors such as diodes, thyristors.
These square body fuse-links are available in various body sizes
with a broad range of ampere ratings allowing the greatest
flexibility in equipment design.
They have pure silver fuse elements embedded in solidified
2
sand which provides optimized I t and high breaking capacity.
All contact surfaces are plated and all hardware non-magnetic.
All fuses are standard with a low voltage blown fuse
indicator. This indicator can operate a microswitch which is
easily mounted directly on to the fuse in service.

Features/Benefits
Broad range of ampere ratings
in each body size for design flexibility
IEC 60269-4 compliance for fuses for
worldwide semiconductor applications
Beige melted Red non melted

Ratings Approvals
AC: up to 1000 A AC: Tested to IEC 269.4
500 - 690 VAC
80-170 kA IR
DC: Consult Factory

Features Applications Inovations

• Ultra fast acting Protection of rectifiers, • Double indicator(Visual and mechanical).
• Highly current limiting. inverters, static switch, • Largest range of the market
• High breaking capacities AC & DC drives and • Connexion improvement between
• Very low I t UPS systems. trip indicator - Micro switch
2
• Worldwide mounting • Cd / Pb free
acceptance. • Low voltage indicator - 50V
• Superior cycling ability.
• High widstanding in rush
current and overloads

SCAC101
03/06