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.
7 14
| 10
t t
13
' v
All contacts are forcibly
guided.
ds 61408 sfn4d: 130312D 589
5 7
8
Safety
.
For all contacts, the
contact condition not
defined.
■NO 14-13 welded.
- Armature deenergized
position.
- Armature nearly in
deenergized position.
■NC 16-15 welded. 0.
The contact gaps are min.
The contact gaps are
min.
0.
Armature nearly in
deenergized position.5mm.
\ 6
9 121 16
10 15
- All contacts are forcibly
guided.
7
,/ 9"
Y 14
CO
M 0
h
13
- 16-15 closed!!
- All non-w elded NO
contacts show eir ax.
- For 16-15, the contact
condition not defined.
Coil deenergized.
- Coil energized.5mm.
The contact gap min.
11 5-6 forcibly guided the
welded contact sub card 1.
The contact gaps are min.
- Coil deenergized.
5 Njl4 <L
, ,
9 14
6 /13
All (both) contacts are
forcibly guided.
Coil deenergized.
The contact gap min.
0.5mm.
Coil energized.5mm.
16 contact gap.
For 5-6, the contact
condition not defined.
Armature nearly in
energized position.
0.
5 ,
6 (0
N
7 9
- 16-15 closed!!
- All non-w elded NO
contacts show their ax.5mm.
0.
■Armature deenergized
position.5mm.
■NO 12-11 welded.
15 5-6 forcibly guided the
welded contact sub card 2.
For all contacts, the
contact condition not
defined.SFN4D
The SFN4D safety relay with welded contacts
Condition Illustration Relay State Condition Contacts
- 5-6 welded.
12 contact gap.
Armature nearly
energized position.
1 1
5 14
6 3
1 1
All (both) contacts are
forcibly guided.
- The contact gaps are
min.
■NO 7-8 welded. 0.
■Coil deenergized.
- 9-10 welded
