LEA-14

4.2 Derating

n

n

The operative ambient temperature is different by with / without

case cover or mounting position. Please refer drawings as below.

In case , ventilation must keep the temperature of C119 below

85 . See External View for the location of C119.

Note: In the hatched area, the specification of Ripple, Ripple Noise

is different from other area.

Please be careful of electric shock or earth leakage in case of

temperature measurement, because C119 is live potential.

lLEA50F

lLEA50F- -SN (Requirement: Min. AC90V)

lLEA75F

lLEA75F- -SN (Requirement: Min. AC90V)

lLEA100F

lLEA100F- -SN (Requirement: Min. AC90V)

Ambient temperature [ ]

20

0

-10

0

10203040506070

40

60

80

100

Convection

(D), (E), (F) mounting

(B), (C) mounting

(A) mounting

Forced air (0.5m /min)

3

Ambient temperature [ ]

20

0

-10

0

102030405060

40

60

80

100

Convection

(D), (E) mounting

(B), (C) mounting

(A) mounting

Forced air (0.5m /min)

3

Ambient temperature [ ]

20

0

-10

0

10203040506070

40

60

80

100

Convection

(E), (F) mounting

(B), (C), (D) mounting

(A) mounting

Forced air (0.5m /min)

3

Ambient temperature [ ]

20

0

-10

0

102030405060

40

60

80

100

Convection

(B), (E) mounting

(C), (D) mounting

(A) mounting

Forced air (0.5m /min)

3

Ambient temperature [ ]

20

0

-10

0

10203040506070

40

60

80

100

Convection

(B), (C), (D), (E), (F) mounting

(A) mounting

Forced air (0.5m /min)

3

Ambient temperature [ ]

20

0

-10

0

102030405060

40

60

80

100

Convection

(B), (C), (D), (E) mounting

(A) mounting

Forced air (0.5m /min)

3

CN1

2

=4mm min

CN1

2

1

=8mm min

2

2

4 Assembling and

Installation Method

4.1 Installation method

n

n

When two or more power supplies are used side by side, position

them with proper intervals to allow enough air ventilation. Ambient

temperature around each power supply should not exceed the

temperature range shown in derating curve.

In case of metal chassis, keep the distance between l & l for to

insulate between lead of component and metal chassis. If it is

less than l & l , insert the insulation sheet between power supply

and metal chassis.

12

12

LEA

Instruction Manual

AC-DC Power Supplies Open Frame/Enclosed type