170M — size 1* to 3, US style 1000 Vac (IEC), 50 to 1400 A

Description

Square body US style bolted tags high speed fuses for the protection of DC common bus, DC drives, power converters/ rectifiers and reduced rated voltage starters. Fuses come with Type K indicator for microswitches.

Specifications

Ratings

• Volts: 1000 Vac (IEC) (1400 A 900 Vac)

• Amps: 50-1400 A

• Interrupting rating: 125 kA RMS Sym.

Operating class: aR

Agency information

• Designed and tested to IEC 60269 Part 4

• UL Recognized, E125085, JFHR2 for size 2 and 3 (315-1100 A)

• CSA Class 53787, File 1422-30 for size 2 and 3 (315-1100 A)

• CCC approval for size 2 only

• CE

Electrical Characteristics

Total clearing I2t

The total clearing I2t at rated voltage and at power factor of 15% are given in the electrical characteristics. For other voltages, the clearing I2t is found by multiplying by correction factor, K, given as a function of applied working voltage, Eg, (rms).

Arc Voltage

This curve gives the peak arc voltage, UL, which may appear across the fuse during its operation as a function of the applied working voltage Eg, (rms) at a power factor of 15%.

Power Losses

Watts loss at rated current is given in the electrical characteristics. The curve allows the calculation of the power losses at load currents lower than the rated current. The correction factor, Kp, is given as a function of the RMS load current, Ib, in % of the rated current

Catalog Numbers

* Rated voltage 900V.

• Watts loss provided at rated current.

• Microswitch ordered separately. See accessories on pages 185-186.

• For fuse curves see pages 152 and 153.

Features and Benefits

• Excellent DC performance

• Low arc voltage and low energy let-through (I2t)

• Low watts loss • Superior cycling capability

Typical Applications

• DC common bus

• DC drives

• Power converters/rectifiers

• Reduced voltage starters