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Protistor® size 73 gR, 350 to 600VDC

Approvals & Standards
IEC 60269-4 Compliance
UL/CSA Recognized E76491

These Protistor® fuse-links provide maximum flexibility in equipment design and ultimate protection for today's power conversion equipment. These square body fuse-links are available in different body sizes, each size having multiple worldwide acceptable mounting styles. The Protistor® have been engineered to provide state-of-the-art protection for semiconductors: diodes, thyristors, GTO's and IGBT devices. Fuses are assembled with pure silver, die-cut elements embedded in solidified sand, which helps control arcing characteristics for a lower I²t and high interrupting rating level. All contact surfaces are silver plated and all hardware is non-magnetic. All fuse-links can be equipped with a low voltage trip-indicator which can operate a field mountable microswitch.

These Protistor® fuse-links provide maximum flexibility in equipment design and ultimate protection for today's power conversion equipment. These square body fuse-links are available in different body sizes, each size having multiple worldwide acceptable mounting styles. The Protistor® have been engineered to provide state-of-the-art protection for semiconductors: diodes, thyristors, GTO's and IGBT devices. Fuses are assembled with pure silver, die-cut elements embedded in solidified sand, which helps control arcing characteristics for a lower I²t and high interrupting rating level. All contact surfaces are silver plated and all hardware is non-magnetic. All fuse-links can be equipped with a low voltage trip-indicator which can operate a field mountable microswitch.

Key features & benefits

  • Multiple body sizes and terminals or blades combination

  • gR Class according to IEC 60269-4 and VDE 636-23

  • Low I²t for improved semiconductor protection

  • Extremely fast acting

  • Eliminate all overloads

  • Excellent cycling capability

Applications

  • Protection of inverters, motor drives, UPS systems and similar 600V or less equipments.

Technical Specifications

Voltage Range 350…600 V DC
Amperage Range 315 ... 1000 A
Speed/Characteristic gR
CE Conformity Yes
Reach Compliant Yes

Reference Finder

11 references in this series

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Item number Ampere rating Fuse size Clearing I2t At Rated Voltage Indication System Product weight
B302681 - D73GB35V900TF See product
 900A 73 - Yes 1.105kg
G233019 - D73GB55V550EF See product
 550A 73 - Yes 1.375kg
L234058 - D73GB45V800TFB See product
 800A 73 - Yes 1.105kg
M302645 - D73GB35V1000TF See product
 1000A 73 - Yes 1.105kg
P302095 - D73GB60V315TF See product
 315A 73 - Yes 1.105kg
Q302096 - D73GB60V400TF See product
 400A 73 - Yes 1.105kg
R302097 - D73GB60V450TF See product
 450A 73 - Yes 1.105kg
S302098 - D73GB60V500TF See product
 500A 73 - Yes 1.105kg
T302099 - D73GB55V550TF See product
 550A 73 - Yes 1.105kg
V302100 - D73GB55V630TF See product
 630A 73 - Yes 1.105kg
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