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.
SFN4D
The SFN4D safety relay with welded contacts
Condition Illustration Relay State Condition Contacts
- 5-6 welded.
■Coil deenergized.
- Armature deenergized
position.
ds 61408 sfn4d: 130312D 589
5 7
8
Safety
.5mm.
1 1
5 14
6 3
1 1
All (both) contacts are
forcibly guided.
0.
7 14
| 10
t t
13
' v
All contacts are forcibly
guided.
16 contact gap.
5 Njl4 <L
, ,
9 14
6 /13
All (both) contacts are
forcibly guided.
The contact gaps are min.5mm.
■NC 16-15 welded.
Coil deenergized.
- For 16-15, the contact
condition not defined.
■Armature deenergized
position.
0.
The contact gaps are
min.
12 contact gap.5mm.
Armature nearly in
deenergized position.
0.
Coil deenergized.
■NO 7-8 welded.
For all contacts, the
contact condition not
defined.
The contact gap min.
■NO 12-11 welded.
- 9-10 welded.
For all contacts, the
contact condition not
defined.
7
,/ 9"
Y 14
CO
M 0
h
13
- 16-15 closed!!
- All non-w elded NO
contacts show eir ax.
Armature nearly
energized position. 0.
For 5-6, the contact
condition not defined.
Armature nearly in
energized position.
- Coil energized.
Coil energized.5mm.
15 5-6 forcibly guided the
welded contact sub card 2. 0.
\ 6
9 121 16
10 15
- All contacts are forcibly
guided.5mm.
11 5-6 forcibly guided the
welded contact sub card 1.5mm.
- Coil deenergized.
5 ,
6 (0
N
7 9
- 16-15 closed!!
- All non-w elded NO
contacts show their ax.
- The contact gaps are
min.
■NO 14-13 welded.
- Armature nearly in
deenergized position.
The contact gaps are min.
The contact gap min.
0
