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11July2018/Version 1

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LES series

Absolute maximum ratings

Parameter

Symbol

Unit

Value

Maximum supply voltage

U

C max

V

7

Maximum primary conductor temperature

T

B max

°C

110

Maximum primary current

I

P max

A

20 × I

PN

Maximum electrostatic discharge voltage

U

ESD max

kV

4

Stresses above these ratings may cause permanent damage. Exposure to absolute maximum ratings for extended periods may

degrade reliability.

UL 508: Ratings and assumptions of certification

File # E189713 Volume: 2 Section: 11

Standards

● CSA C22.2 NO. 14-10 INDUSTRIAL CONTROL EQUIPMENT - Date 2011/08/01

● UL 508 STANDARD FOR INDUSTRIAL CONTROL EQUIPMENT - Date 2013

Ratings

Parameter

Symbol

Unit

Value

Primary involved potential

V AC/DC

600

Max surrounding air temperature

T

A

°C

105

Primary current

I

P

A

According to series primary

currents

Secondary supply voltage

U

C

V DC

7

Output voltage

V

out

V

0 to 5

Conditions of acceptability

When installed in the end-use equipment, consideration shall be given to the following:

1 - These devices must be mounted in a suitable end-use enclosure.

2 - The terminals have not been evaluated for field wiring.

3 - The LES, LESR, LKSR, LPSR, LXS and LXSR Series shall be used in a pollution degree 2 environment or better.

4 - Low voltage circuits are intended to be powered by a circuit derived from an isolating source (such as a transformer, optical

isolator, limiting impedance or electro-mechanical relay) and having no direct connection back to the primary circuit (other than

through the grounding means).

5 - These devices are intended to be mounted on the printed wiring board of the end-use equipment (with a minimum CTI of 100).

6 - LES, LESR, LKSR and LPSR Series: based on results of temperature tests, in the end-use application, a maximum of 110°C

cannot be exceeded on the primary jumper.

Marking

Only those products bearing the UL or UR Mark should be considered to be Listed or Recognized and covered under UL’s Follow-

Up Service. Always look for the Mark on the product.