Panasonic is part of a large worldwide groupselling relays and associated switching products under different brand names in different territories.The conditions of use in some territories may differ from those customary in Europe. In particular there are often major differences in regard to national and international specifications, such as UL, CSA, VDE, SEV, EVE, SEMKO, etc. Thus, when considering contact loads as stated in this catalogue (e.g. 10 A, 30 VDC for the SP relay) its hould be understood that these values are not necessarily an absolute maximum but tested ratings. Mostly the stated value has been tested for a certain life expectancy as stated by the manufacturer or the respective test house. Thus, under different conditions, the stated “maximum” may, in practice, be safely exceeded.
- 9-10 welded.
■NO 7-8 welded.
0.
7 14
| 10
t t
13
' v
All contacts are forcibly
guided.5mm.
- Armature nearly in
deenergized position.5mm.
ds 61408 sfn4d: 130312D 589
5 7
8
Safety
.5mm.5mm.
- Coil deenergized.
The contact gaps are min.
Coil deenergized.
■NO 14-13 welded.
1 1
5 14
6 3
1 1
All (both) contacts are
forcibly guided.
- For 16-15, the contact
condition not defined.
Coil energized.
For all contacts, the
contact condition not
defined.5mm.
7
,/ 9"
Y 14
CO
M 0
h
13
- 16-15 closed!!
- All non-w elded NO
contacts show eir ax.
0.
The contact gap min.
11 5-6 forcibly guided the
welded contact sub card 1.
- Armature deenergized
position.
15 5-6 forcibly guided the
welded contact sub card 2.
- Coil energized.
0.
0.
The contact gaps are min.
5 Njl4 <L
, ,
9 14
6 /13
All (both) contacts are
forcibly guided.5mm.
Armature nearly in
deenergized position.
■NO 12-11 welded.
Armature nearly in
energized position.
■Coil deenergized.
- The contact gaps are
min.
For all contacts, the
contact condition not
defined. 0.
■Armature deenergized
position.
5 ,
6 (0
N
7 9
- 16-15 closed!!
- All non-w elded NO
contacts show their ax.
Armature nearly
energized position.
Coil deenergized.
The contact gap min.
■NC 16-15 welded.
The contact gaps are
min.SFN4D
The SFN4D safety relay with welded contacts
Condition Illustration Relay State Condition Contacts
- 5-6 welded.
For 5-6, the contact
condition not defined.
16 contact gap.
12 contact gap.
\ 6
9 121 16
10 15
- All contacts are forcibly
guided. 0
