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