Specifications
Square body DIN 43 620 blade style high speed fuses.
Volts: 690Vac
Amps: 10-315A
IR: 200kA RMS Sym.
Agency information: CE, Designed and tested to IEC 60269: Part 4, UL Recognized.

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.

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

Dimensions (mm)


Catalog Numbers

DIN Type T Indicator for Micro	Size	Electrical Characteristics
		Rated Current RMS-Amps	I2t(A2 Sec)		Watts Loss
			Pre-arc	Clearing at 660V
170M1558D	000	10A	4	27	2.5
170M1559D		16A	7	51	4
170M1560D		20A	11.5	82.5	5
170M1561D		25A	19	140	6
170M1562D		32A	40	285	7
170M1563D		40A	65	490	8.5
170M1564D		50A	115	815	9.5
170M1565D		63A	215	1550	11.5
170M1566D		80A	380	2700	15
170M1567D		100A	695	4950	16.5
170M1568D		125A	1180	8250	21.5
170M1569D		160A	2300	16500	25
170M1570D		200A	4350	31000	29.5
170M1571D		250A	7900	56000	35.5
170M1572D	00	315A	12000	84500	45

• Watts loss provided at rated current.
• Microswitch indicator ordered separately. See accessories on pages 185-186. Rated Current

The rated current of this fuse range has been given with copper conductors that have a current density of 1.3 A/mm2 (IEC 60269-4). For conductor cross section according to IEC 60269-1, the fuses with a rated current higher than 125A must be derated.

Size 000 — 10-315A: 690V
Time-Current Curve


Peak Let-Through Curve