Datasheet
SFS
8
ds_61410_en_sfs: 170413D
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
(27C 80.6F), 70C 158F, 85C 185F
3. Malfunctional shock
Sample: SFS4-DC24V (4 Form A/2 Form B)
Quantity: n = 3
No. of contacts
10 23456 789
10 11 12 13 14 15
0
30
20
10
40
50
Time, ms
Release time
Operate time
Response time
Coil applied voltage, %V
Temperature rise, °C
90 100 120110 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
200m/s
2
200m/s
2
200m/s
2
200m/s
2
200m/s
2
200m/s
2
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 current, A
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.
>0.5: contact gap is kept at min. 0.5 mm .020inch
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