SF2D-DC5V 查看數據表（PDF） - Panasonic Corporation
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SF2D-DC5V
Panasonic Corporation
SF2D-DC5V Datasheet PDF : 6 Pages
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SF Double contact type
2) 4 Form A 4 Form B type
Internal Contacts Weld
When internal contacts (No. 2, No. 3, No. 6 or No. 7) are welded, the armature becomes non-operational and the four form “a” contact
gaps are maintained at 0.5 mm .020inch or greater. Reliable cut-off is thus ensured.
No.8
No.7
No.6
No.5
Non-energized
No.1
No.2
No.3
No.4
No.8
No.7
No.1
No.2
No.6
No.5
No.3
No.4
Energized (when no. 2 contact is welded)
Example: If the No. 2 contact welds.
Each of the four form “a” contacts (No. 1, 3, 5, and 7)
maintains a gap of greater than 0.5 mm .020 inch.
External Contacts Weld
When external contacts (No. 1, No. 4, No. 5 or No. 8) are welded, gaps of 0.5 mm .020inch and greater are maintained between
adjacent contacts and other contacts operate normally by the coil being non-energized.
No.8
No.7
No.1
No.2
No.6
No.5
Energized
No.3
No.4
Example 2:
If external connections are made in series.
Even if one of the contacts welds, the other contacts
operate independently and the contact gaps are
maintained at greater than 0.5 mm .020 inch.
No.8
No.7
No.1
No.2
No.6
No.5
No.3
No.4
Non-energized (when no. 1 contact is welded)
Example 1: If the No. 1 contact welds.
The adjacent No. 2 contact maintains a gap of greater
than 0.5 mm .020 inch. The other contacts, because
the coil is not energized, return to their normal return
state; each of form “a” contacts (No. 3, 5, and 7)
maintains a contact gap of greater than 0.5 mm
.020 inch; each of the form “b” contacts (No. 4, 6, and
8) return to a closed state.
Energized
Non-energized
Weld
Contact gap
min 0.5 mm .020 inch
Contact Operation Table
No.8
No.7
No.1
No.2
No.6
No.5
No.3
No.4
Contact No. No.1 No.2 No.3 No.4 No.5 No.6 No.7 No.8
Terminal No. 20–19 12–11 8–7 16–15 13–14 5–6 9–10 17–18
The table below shows the state of the other contacts when the current through
the welded form “a” contact is 0 V and the rated voltage is applied through the
form “b” contact.
Contact No.
State of other contacts
Contact No.
1
2
3
4
5
6
7
8
1
>0.5 >0.5 ≠ >0.5 ≠ >0.5 ≠
2 >0.5
>0.5
>0.5
>0.5
3
>0.5
>0.5
>0.5
>0.5
Welded 4
≠ >0.5 >0.5
terminal
No.
5 >0.5 ≠ >0.5 ≠
≠ >0.5 ≠ >0.5
>0.5 >0.5 ≠
6 >0.5
>0.5
>0.5
>0.5
7
>0.5
>0.5
>0.5
>0.5
8 >0.5 >0.5 ≠ >0.5 ≠ >0.5 >0.5
* Contact gaps are shown at the initial state.
If the contacts change state owing to loading/breaking it is necessary to check
the actual loading.
>0.5: contact gap is kept at
min. 0.5 mm .020 inch
≠: contact closed
Empty cells:
either closed or open
NOTES
1. For cautions for use, please read
“General Application Guidelines”.
–6–
ASCTB120E 201408-T
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