Switch mode Power Supply

S82K

L-17

I Overload Protection

The Power Supply is provided with an overload protection function that protects the load and the power supply from possible damage by overcur-

rent. When the output current rises above a set value (refer to the table below), the protection function is triggered, decreasing the output voltage.

When the output current falls within the rated range, the overload protection function is automatically cleared.

Note: 1. When using the 7.5-W single-output models within the input voltage range between 90 and 110 VDC, the overload protection function

will operate at currents from 95% to 160% of the rated load current.

2. When using the 90-W model at an ambient temperature exceeding 25

°C, the overload protection function will operate at currents from

92% to 111% of the rated load current.

3. When using the 100-W model with PFC in parallel operation, the overload protection function will operate at currents from 3.78 to 4.2 A.

65

70

90

240-W Model

Parallel-Unit Operation

Note:

100-VAC input: 85 to 132 VAC

Ambient temperature (

°C)

Ambient temperature (

°C)

Single-Unit Operation

Installation A

Installation A

90-W Models

Ambient temperature (

°C)

Installation A

Installation B

240-W Model

Single-Unit Operation

Note:

100-VAC input: 85 to 132 VAC

S82K-P09024:

85-VAC input

S82K-P24024:

100-VAC input

(see note)

S82K-P24024:

100-VAC input

(see note)

(A) Standard (Vertical) Installation

(B) Horizontal Installation

Top

Top

S82K-

@@

Note: The derating curve above can be ensured for

the above two kinds of installations.

(Not permitted for

240-W models.)

Single output

Dual

outputs

Single output

3 W

7.5 W

7.5 W

15 W

30 W

50 W

90 W

100 W

240 W

Set value

105% to 160% of rated load

current (see note 1)

105% to

250% of rat-

ed load cur-

rent

105% to 160% of rated load current

101% to

111% of rat-

ed load cur-

rent (see

notes 2 and

3)

105% to 160% of rated load

current (see note 3)

Operation

Inverted L drop type, automatic reset

Inverted L drop/intermittent

operation type, automatic

reset

Inverted L drop type, automatic reset