ATES-30L72-DC800V Fuse

This series fuse is suitable for rated voltage to DC800V, rated current to 250A. It is mainly protecting semiconductor devices and complete sets of equipment against short-circuits. The rated breaking capacity up to 30kA. They conform to national standard GB13539.1／GB13539.7 and international electrical committee standard IEC60269-1／IEC60269-7. And the product can replace the models in other countries and factories.

Features & Benefits

Fuse tube code (aBat): ATES-30L72

Rated voltage (V): 800DC

Rated current (A): 25、32、40、50、63、80、100、125、160、200、225、250、300、315、350、400

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Product Details

Normal working conditions

The effect of current

The upper limit of ambient air temperature should not exceed 40℃; the lower limit of ambient air temperature should not be lower than -5℃; the altitude of the installation site should not exceed 2000m (if you want to exceed this 2000m, you need to indicate the requirements, and the company can design and develop according to customer requirements).

Fuse link derating table for installation

Installation altitude (m)	Percentage of current derating (A)	Percentage of Insulation performance derating (V)
2000	100%	100%
3000	95%	90%
4000	90%	80%
5000	85%	70%

For example: the rated current is 180A and the installation site altitude is 5000m, the actual selection is 180*85%≈153A.

The effect of Voltage

The rated voltage of photovoltaic fuses does not need to be derated for installation altitudes not exceeding 5000m, but it is affected by air pressure on the power frequency withstand voltage and insulation performance to a certain extent. The test voltage of DC800V is 3280V.

The effect of temperature

The following figure shows a typical curve of the influence of ambient temperature on current carrying capacity:

T(℃)	A	Ambient temperature-bearing capacity curve
-20	1.10	Curve A: photovoltaic fuse link curve
-10	1.08
0	1.06
10	1.03
20	1.00
30	0.96
40	0.92
50	0.88
60	0.84
70	0.78
80	0.72

For example: In some applications, the ambient temperature is 20°C, and the rated current of the aR type fuse is selected as 63A. Now, the above-mentioned fuse is often used in a high temperature environment of 70 ℃, then the fuse must be derated. The environmental bearing capacity curve A in the figure shows that the percentage of the rated operating value at 70°C is 0.78, that is to say, the rated current value of the fuse should be reselected:

Choose 80A according to the standard current level of the fuse

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Construction Feature

The variable cross-section fuse body made by silver piece is sealed in the fusion tube which is made by the high strength porcelain or epoxy glass cloth pipe, there is full of the high-purity quartz sand processed after chemistry to take the extinguishing of arc medium in the tube,using a special chemical substance solidified quartz sand and ceramic into a whole,to play better on breaking capacity and arc extinction. The two sides of the fuse use the spot welding to electrically connected with the contact firmly.

Dimension (as the picture shows)

Fuse tube code	Rated voltage (V)	Rated current (A)	Overall dimension (mm)
aBat
ATES-30L72	800DC	25、32、40、50、63、80、100、125、160、 200、225、250、300、315、350、400	See Drawing 1

Fuse cold resistance and power dissipation

Fuse tube code	Rated current (A)	1In (W)	Pre-arcing I²t	Total I²t
ATES-30L72	25	10	24	210
	32	11	43	377
	40	12	71	627
	50	14	128	1180
	63	15	245	2280
	80	18	435	4020
	100	22	755	7400
	125	26	1230	12100
	160	30	2420	23800
	200	36	4130	41800
	250	43	7030	71700