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參數(shù)資料
| 型號(hào)： | SF2-DC21V |
| 英文描述： | COVER - CABLE GRIP |
| 中文描述： | 極化，單穩(wěn)態(tài)與安全繼電器（機(jī)械連接）強(qiáng)迫接觸行動(dòng) |
| 文件頁(yè)數(shù)： | 5/7頁(yè) |
| 文件大?。?/td> | 338K |
| 代理商： | SF2-DC21V |
262
SF
If the two form “a” contacts (Nos. 2 and 4) weld, the armature becomes non-operational and the gap between the two form "b"
contacts is maintained at greater than 0.5 mm
.020 inch
. Reliable isolation is thus ensured.
Form “a” Contact Weld
If the No. 2 contact welds.
Each of the two form "b" contacts (Nos. 1 and 3)
maintains a gap of greater than 0.5 mm
.020 inch
.
No.4
No.3
No.1
No.2
Energized
No.4
No.3
No.1
No.2
Non-energized (when no. 2 contact is welded)
No.4
No.3
No.1
No.2
Contact No.
Terminal No.
No.1
11–12
No.2
7–8
No.3
5–6
No.4
9–10
State of other contacts
1
2
>0.5
>0.5
>0.5
>0.5
3
4
Welded
terminal
No.
1
2
3
4
>0.5
>0.5
>0.5
>0.5
Note: 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
Empty cells: either closed or open
Contact No.
Contact No.
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 Operation Table
1) 2a2b Type
If the form “b” contacts (Nos. 1 and 3) weld, the armature becomes non-operational and the contact gap of the two form “a” contacts
is maintained at greater than 0.5 mm
.020 inch
. Reliable isolation is thus ensured.
Form “b” Contact Weld
If the No. 1 contact welds.
A gap of greater than 0.5 mm
.020 inch
is main-
tained at each of the two form "a" contacts (Nos.
2 and 4).
No.4
No.3
No.1
No.2
Non-energized
No.4
No.3
No.1
No.2
Energized (when no. 1 contact is welded)
THE OPERATION OF SF RELAYS (when contacts are welded)
SF relays work to maintain a normal operating state even when overloading or short-circuit currents occur. It is also easy to include
weld detection circuits and safety circuits in the design to ensure safety even if contacts weld.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SF2-DC24V | POLARISED, MONOSTABLE SAFETY RELAY with (mechanical linked) forced contacts operation |
| SF2-DC36V | POLARISED, MONOSTABLE SAFETY RELAY with (mechanical linked) forced contacts operation |
| SF2-DC48V | POLARISED, MONOSTABLE SAFETY RELAY with (mechanical linked) forced contacts operation |
| SF2-DC5V | POLARISED, MONOSTABLE SAFETY RELAY with (mechanical linked) forced contacts operation |
| SF2-DC60V | POLARISED, MONOSTABLE SAFETY RELAY with (mechanical linked) forced contacts operation |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SF2-DC24V | 功能描述:RELAY SAFETY 4PST 6A 24V RoHS:是 類別:繼電器 >> 功率，高于 2 安 系列:SF2 其它有關(guān)文件:General Appl Guidelines Standards Chart 標(biāo)準(zhǔn)包裝:50 系列:JC 繼電器類型:通用 線圈類型:無(wú)鎖存 線圈電流:83.3mA 線圈電壓:12VDC 觸點(diǎn)形式:DPST（2 A 型） 觸點(diǎn)額定值（電流）:10A 切換電壓:250VAC - 最小值 關(guān)閉電壓（最大）:9.6 VDC 關(guān)閉電壓（最小）:1.2 VDC 特點(diǎn):- 安裝類型:通孔 端接類型:PC 引腳 包裝:散裝 觸點(diǎn)材料:銀合金 操作時(shí)間:15ms 釋放時(shí)間:2ms 線圈功率:1 W 線圈電阻:144 歐姆 工作溫度:-50°C ~ 60°C |
| SF2-DC36V | 制造商:NAIS 制造商全稱:Nais(Matsushita Electric Works) 功能描述:POLARISED, MONOSTABLE SAFETY RELAY with (mechanical linked) forced contacts operation |
| SF2-DC48V | 制造商:Panasonic Electric Works 功能描述: |
| SF2-DC5V | 制造商:Panasonic Electric Works 功能描述: |
| SF2-DC60V | 制造商:NAIS 制造商全稱:Nais(Matsushita Electric Works) 功能描述:POLARISED, MONOSTABLE SAFETY RELAY with (mechanical linked) forced contacts operation |
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