SFS

8

ds_61410_en_sfs: 031213D

REFERENCE DATA

Other contact gaps when contacts are welded

SAFETY STANDARDS

* CSA standard: Certified by C-UL

Certification authority

File No.

UL/C-UL

E43149*

6A 277V AC, 6A 30V DC

TÜV

B 05 04 13461 054

6A 250V AC (cos

=1.0), 6A 250V DC (0ms), AC15: 2A 240V AC (cos=1.0), DC13: 1A 24V DC (L/R 48ms)

1. Operate/response/release time

Sample: SFS4-DC24V (4 Form A/2 Form B)

Quantity: n = 20 (a contacts: 80, b contacts: 40)

2. Coil temperature rise

Sample: SFS4-DC24V (4 Form A/2 Form B)

Quantity: n = 3

Measured portion: Inside the coil

Ambient temperature: Room temperature

(27

3. Malfunctional shock

Sample: SFS4-DC24V (4 Form A/2 Form B)

Quantity: n = 3

1

0

234 5 6 78 9 10 11 12 13 14 15

0

30

20

10

40

50

Time, ms

Release time

Operate time

Response time

Coil applied voltage, %V

90

100

120

110

130

50

40

30

20

10

0

0A Room temperature

6A Room temperature

0A 70

°C

6A 70

°C

0A 85

°C

4.5A 85

°C

Y'

Y

XZ

Z'

X'

Y

Y'

Z'

Z

X

X'

Deenergized condition

Energized condition

4. Max, switching capacity

(2 Form A/2 Form B type)

10

20 30

50 70 100

200 300 500

1000

125

250

10

1

2

3

4

5

6

7

8

0.1

0.2

0.3

0.5

0.7

Contact voltage, V

AC resistive load

DC resistive load

Sample: SFS4-DC24V (4 Form A/2 Form B)

The table below shows the state of the other contacts.

In case of form “NO” contact weld the coil applied voltage is 0 V.

In case of form “NC” contact weld the coil applied voltage is nominal.

Empty cells: either ON or OFF

Note: Contact gaps are shown at the initial state.

If the contact transfer is caused by load switching, it is necessary to check the actual loading.

State of other contacts

3-4 (NC)

5-6 (NC)

7-8 (NO)

9-10 (NO)

11-12 (NO)

13-14 (NO)

Welded contact No.

3-4 (NC)

>0.5

>0.5

>0.5

>0.5

5-6 (NC)

>0.5

>0.5

>0.5

>0.5

7-8 (NO)

>0.5

>0.5

9-10 (NO)

>0.5

>0.5

11-12 (NO)

>0.5

>0.5

13-14 (NO)

>0.5

>0.5