Delta Electronics Series S48SS manual Thermal Curves, Top View

THERMAL CURVES:

Top View

S48SS12001NR A Output Current vs. Ambient Temperature and Air Velocity @Vin < 60V

Output Current(A)

1.3
1.2
1.1					600LFM
1.0
0.9
0.8	Natural				500LFM
	Convection
0.7
0.6		100LFM			400LFM
0.5
0.4		200LFM
0.3
0.2
0.1		300LFM
0.0
75	80	85	90	95	100	105
					Ambient Temperature (℃)

Figure 12: Case temperature measurement location. Pin locations are	Figure 13: Output current vs. ambient temperature and air velocity (Vin
for reference only.	<60V)

S48SS12001NR A Output Current vs. Ambient Temperature and Air Velocity @Vin = 75V

Output Current(A)

1.3
1.2					600LFM
1.1
1.0					500LFM
0.9					400LFM
0.8	Natural
0.7	Convection
0.6
0.5	100LFM
0.4
0.3			200LFM
0.2
0.1			300LFM
0.0
70	75	80	85	90	95	100
					Ambient Temperature (℃)

S48SS12001NR A Power Dissipation vs. Ambient Temperature and Air Velocity

Power Dissipation (Watts)

3.2
3.0
2.8
2.6						600LFM
2.4
2.2		Natural				500LFM
		Convection
2.0
1.8		100LFM
1.6						400LFM
1.4			200LFM
1.2
1.0				300LFM
0.8
0.6
0.4
0.2
0.0
70	75	80	85	90	95	100	105
						Ambient Temperature (℃)

Figure 14: Output current vs. ambient temperature and air velocity	Figure 15: Power dissipation vs. ambient temperature and air
(Vin=75V)	velocity.

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