LK

61

6-1. Electrical life test

(5 A 277 V AC, resistive load)

Sample: LK1aF-12V, 6 pcs.

Operation frequency: 20 times/min.

(ON/OFF = 1.5s: 1.5s)

Ambient temperature: 26

Circuit:

Change of pick-up and drop-out voltage

Change of contact resistance

DC12V

Contact

welding

detection

and Mis-

contacting

detection

circuit

AC277V

05

10

No. of operations,

0

20

40

60

80

100

Pick-up voltage

Drop-out voltage

Max.

Min.

Max.

Min.

05

10

No. of operations,

Max.

Min.

0

10

20

30

40

50

6-2. Electrical life test

(UL lamp load test TV-5)

Tested sample: LK1aF-12V, 6 pcs.

• Overload test

Load: 7.5 A 120 V AC (60 Hz),

Inrush: 111 A

Operation frequency: 10 times/min

(ON: OFF = 1 s: 5 s)

No. of operations: 50 ope.

• Endurance test

Load: 5A 120 V AC (60 Hz),

Inrush: 78 A

Operation frequency: 10 times/min

(ON: OFF = 1 s: 5 s)

No. of operations: 25,000 ope.

Change of pick-up and drop-out voltage

Change of contact resistance

No. of operations,

Max.

Min.

Max.

Min.

0

0

2.5

20

40

60

80

100

Pick-up voltage

Drop-out voltage

No. of operations,

Max.

Min.

0

0

2.5

10

20

30

40

50

NOTES

1. Cleaning

This relay is not the sealed type, so it can-

not be immersion cleaned. Be careful that

flux does not overflow onto the PC board

or penetrate inside the relay.

2. Soldering

We recommend the following soldering

conditions.

1) Automatic soldering

* Preheating: 100

(PC board solder surface)

* Soldering: 260

2) Hand soldering

* Iron tip temperature: 280 to 300

to 571

°F

* Soldering iron: 30 to 60W

* Soldering time: Within 3 s

For Cautions for Use, see Relay Technical Information (Page 11 to 39).